an hour of ethereum's blob space cost $1.94. who bought it: versions
every version of this note i stamped, newest first, and the words that changed between two of them.
versions
| frozen (utc) | kind | sha256 | bytes | state | files |
|---|---|---|---|---|---|
| 2026-09-23 | text · current | 6c8050b6cad9 | 13,537 | waiting for a bitcoin block | bytes · proof |
| 2026-09-23 | page · current | dea87f254e24 | 26,466 | waiting for a bitcoin block | the live page · proof |
| 2026-09-21 15:55 | page | 9a34da38ef08 | 16,483 | in bitcoin block 968,015 | bytes · proof |
| 2026-09-15 12:20 | page | 6727258aac53 | 13,863 | in bitcoin block 967,123 | bytes · proof |
| 2026-09-15 11:36 | page | da2be8d62a9d | 13,867 | in bitcoin block 967,121 | bytes · proof |
curl -sLO https://alinaschanz.life/notes/2026-09-15-an-hour-of-blob-space.text.html
curl -sLO https://alinaschanz.life/notes/2026-09-15-an-hour-of-blob-space.text.html.ots
ots verify 2026-09-15-an-hour-of-blob-space.text.html.otsthe words that changed
struck through: words i took out. marked: words i added.
2026-09-21 15:55 → 2026-09-23
an hour of ethereum's blob space cost $1.94. who bought it who bought ethereum's blob space in one hour on 15 september 2026, rollup by rollup, and what they paid: 1,576 blobs for $1.94 in total. 15 september 2026 · berlin · alina schanz question the buyers of one hour of ethereum's … one public node. method blobwatch prices every blob 1 1 blobwatch as of 15 sep 2026: my newest commit before it was 1587549 (10 sep 2026), signed with my key. the code . from its block header and groups the blobs … robinhood chain posted more blobs than base. data 2 the window: 297 blocks, 25,982,236 to 25,982,532, on tuesday 15 september 2026 from 10:21 to 11:21 utc. 3 the command: blobwatch --since 1h --json . blocks # 297 (25,982,236 to 25,982,532) blobs # 1,576 · 5.3 per block the schedule # bpo2: target 14, max 21 per block blocks with no blob · full blocks # 40 · 0 blob base fee # 0.0030 to 0.0057 gwei, median 0.0037 paid for all blobs # 0.00078 eth · $1.94 the twelve biggest posters … blobs share txs per tx paid robinhood chain # 384 24.4% 128 3.0 $0.47 base # 348 22.1% 58 6.0 $0.42 op mainnet # 245 15.5% 49 5.0 $0.30 unlabeled 0x002b..9449 # 100 6.3% 25 4.0 $0.12 arbitrum one # 72 4.6% 24 3.0 $0.09 world chain # 65 4.1% 13 5.0 $0.08 ink # 60 3.8% 10 6.0 $0.07 sent to multicall3 # 49 3.1% 49 1.0 $0.06 soneium # 35 2.2% 7 5.0 $0.04 unichain # 27 1.7% 9 3.0 $0.03 katana # 22 1.4% 9 2.4 $0.03 zk stack chain 36900 # 16 1.0% 8 2.0 $0.02 metal l2 # 15 1.0% 15 1.0 $0.02 lighter # 14 0.9% 14 1.0 $0.02 hemi # 12 0.8% 12 1.0 $0.01 starknet # 12 0.8% 2 6.0 $0.01 observations that is 5.3 blobs a block against a target of 14. 14 4 4 from the limits: "one hour of one tuesday morning." . the blob fee has one rule: above target … rollups on ethereum under two dollars for the hour, hour 5 5 from the limits: "the total counts blob gas only." , all of them together. method blobwatch --since 1h … from, and i want to hear about it. all revised 23 sep 2026. the links to my code now point to the copies on this site, and short notes rss alina schanz onchain data, berlin. in the scripts behind every number are on github . margin say where a figure came from. the figures and the sentences above did not change.
2026-09-15 12:20 → 2026-09-21 15:55
question the buyers of one hour of ethereum's blob space, and the price they paid. data 297 blocks, 25,982,236 to 25,982,532, on tuesday 15 september 2026 from 10:21 to 11:21 utc, read from one public node. method blobwatch reads prices every block of the last hour, prices each blob from its block header and groups the blobs by the rollup that posted them. this run covers tuesday, 10:21 to 11:21 utc, 297 blocks. inbox they went to. the whole command is under method . finding the hour of blob space, for cost every rollup on ethereum together, cost together 0.00078 eth. at $2,481 an ether that is eth, $1.94. the hour robinhood chain posted more blobs than base. data blocks 297 (25,982,236 to 25,982,532) blobs 1,576 · … paid for all blobs 0.00078 eth · $1.94 that is 5.3 blobs a block against a target of 14. the blob fee has one rule: above target the price rises, below it the price falls, down to a floor. it sat at the floor all hour, and the weekly note has it at the floor all week, median 0.0036 gwei over 50,400 blocks. demand could grow two and a half times before the price moved. who bought it the twelve biggest posters of the hour, blobs … 1.0 $0.01 starknet 12 0.8% 2 6.0 $0.01 observations that is 5.3 blobs a block against a target of 14. the blob fee has one rule: above target the price rises, below it the price falls, down to a floor. it sat at the floor all hour, and the weekly note has it at the floor all week, median 0.0036 gwei over 50,400 blocks. demand could grow two and a half times before the price moved. robinhood chain posts more blobs than base. it … blobs each, the largest batches and the fewest. what it costs 1,576 blobs at a median blob base fee … $0.47 for its 384 blobs, base $0.42. the same transactions also pay execution gas for the calldata that carries the blob commitments; that column needs --receipts and it is a separate number, larger than this one when the base fee is up. the blob space itself cost the rollups on ethereum … dollars for the hour, all of them together. rerun it method blobwatch --since 1h --json python 3.10+, standard library, … two and a half minutes on my connection. a blob is 131,072 units of blob gas, and blobwatch computes the blob base fee from each header's excess blob gas with the integer arithmetic of eip-4844, the way clients do. the target and the maximum per block come from eth_config . the names come from a table with a … chain itself; "origin" in the json says which. sources blocks and headers: a public json-rpc node. blobwatch tries publicnode, mevblocker, drpc, tenderly and blastapi in that order. the fee arithmetic: eip-4844 . the schedule: eth_config , from eip-7910 . names: the op superchain registry , verified contracts on blockscout , blobscan 's attribution, and chain ids from chainid.network . robinhood chain: its own contracts, from the inbox to chain id 4663. the dollar figure: coingecko's eth price at the time of the run, $2,481. limits one hour of one tuesday morning. the ranking moves: in ten minutes on 21 september, base posted 118 blobs and robinhood chain 102. the total counts blob gas only. the same transactions pay execution gas for their calldata; --receipts adds that column, and when the base fee is up it is the larger number. the floor moves with the execution base fee. eip-7918 keeps the blob fee near a sixteenth of it, so the same hour costs more on a day of higher gas. 100 blobs went to an inbox nobody has named, and i cannot name an owner for the 49 blobs sent to multicall3. one run against one public node. another node, or a block later, moves the edges of the window. revised 21 sep 2026. the note now lays out question, data, method, observations, sources and limits. the figures from 15 september did not change; the two lines that cite 21 september say so. none of it is advice. if a name … from, and i want to hear about it. share all notes rss alina schanz onchain data, berlin. the scripts behind …
2026-09-15 11:36 → 2026-09-15 12:20
… the blobs by the rollup that posted them. this run covers tuesday, 10:21 to 11:21 utc, 297 blocks. the … paid for all blobs 0.00078 eth · $1.94 that is 5.3 blobs a block against a target of 14. the blob fee market for blobs has one rule: above target the price rises, … all week, median 0.0036 gwei over 50,400 blocks. there is room for demand could grow two and a half times the demand before the price moves. moved. who bought it the twelve biggest posters of … from unrelated senders sharing one contract, one blob each: people rather than a rollup, each; that looks like individuals, and i do not know yet what for yet. they post. starknet is the other end of the table, … the base fee is up. the blob space itself, this hour, itself cost less than a coffee for every rollup the rollups on ethereum put under two dollars for the hour, all of them together. rerun it blobwatch --since 1h --json python … the json says which. none of it is financial advice. if a name in the table is …