2026-09-25: not on the chain yet.
35,982,293 rows of DEBYKO's history of 2026-09-25 UTC, in 9 tables, under one root.
The anchor proves the data did not change after the anchor time; it proves nothing about its correctness at collection. Nothing of this day is on the chain yet: the root below is DEBYKO's own until it is posted, and a proof of one of its rows answers ANCHOR_NOT_YET.
The 9 tables under the root.
Each table's rows of the day form one Merkle tree (RFC 6962); each tree's root, with its table, day, row count and schema version, is one leaf of the day's tree, in table-name order. Chunks are the 4,096-row pieces a proof is read from.
| Table | Layer | Rows | Chunks | Partition root |
|---|---|---|---|---|
| candle | candles | 149,455 | 37 | 5d5f7aa4afa60d3308b582c4d5dcc89191f69ffbcde22fa0de28e6ebbbb85fa4 |
| liquidation | liquidation | 163 | 1 | 99c391f231aab6d41247a40b8a947c586c8f9b8ed98f9843118e330dfa3c0749 |
| observation_depth_derived | book | 3,681,640 | 899 | ef8c19b93cfcf2e1783740be8ff5b48f5bb95e867a3f364b905af479bc161737 |
| observation_funding | funding | 49,966 | 13 | 18e3d5c17a0bd112f88f7bec1a41b33158dc9935945e2308b0a504b73bb9ca5e |
| observation_mark | mark | 2,321,345 | 567 | 9e79bf7ea4783b347af4bde7f6b824eb12d6eef6408e5e2a627c657208191d65 |
| observation_open_interest | oi | 2,054,570 | 502 | 98d1498a61eeba9f451df7c9ed32cd9ccae5938510b69e66725162533a69666c |
| observation_stats | stats | 1,791,711 | 438 | dee28c7ec67a859709eb83a5c6c3af5e51ccad528ce6330edf5057c11c221771 |
| observation_ticker | ticker | 3,688,897 | 901 | 7ffb4224216fb5bc7153bdb18f94f6b1c92e65c5ba358d82c7bf2c5fd0466630 |
| trade | trade | 22,244,546 | 5,431 | 5549835f75afea30994290418a29b11297d39446e3f43e8c232e9552700dd507 |
Check this day without trusting DEBYKO.
The same steps as docs.debyko.com/attest/verify, with this day's values filled in. The first asks the chain alone; the others prove one row of the day under the root it returns. Any public Base RPC does in place of https://mainnet.base.org.
The root on the chain
roots(uint32) of the contract, with the key 20260925. With Foundry, or with curl alone; the answer is the root, 0x8eaf5c5e92…262989.
cast call 0x0AF8259DBfC613825718d4d49A05F9F6fdA15086 "roots(uint32)(bytes32)" 20260925 --rpc-url https://mainnet.base.org
curl -s https://mainnet.base.org -H 'content-type: application/json' \
-d '{"jsonrpc":"2.0","id":1,"method":"eth_call","params":[{"to":"0x0AF8259DBfC613825718d4d49A05F9F6fdA15086","data":"0x081dc681000000000000000000000000000000000000000000000000000000000135283d"},"latest"]}'What DEBYKO says about it
The day's root and its partitions from the API, without a key: it must be the root the chain returned.
curl -s https://api.debyko.com/v2/anchors/2026-09-25The proof of one row
Any stored row of the day, by its listing, layer and own time. Proofs need no account and no key (30 a minute and 2,000 a day from one address). This one is BTCUSDT's 12:00 trade candle on BINANCE-USDM.
curl -s "https://api.debyko.com/v2/anchors/proof?venue=BINANCE-USDM&symbol=BTCUSDT&layer=candles&at=2026-09-25T12:00:00Z&tie=trade" > proof.jsonThe row under the chain's root
verify.py from github.com/debyko/verify (one file, the standard library only, MIT) hashes the row, walks both paths and reads the root from the contract: ✓ valid, or ✗ and the step that failed.
curl -sO https://raw.githubusercontent.com/debyko/verify/main/verify.py
python3 verify.py proof.json --rpc https://mainnet.base.org --contract 0x0AF8259DBfC613825718d4d49A05F9F6fdA15086All anchored days, with their roots.
The next day is 2026-09-26. The list carries every day's status, transaction and rows per table.
The contract and its transactions.
DebykoAnchor's verified source, every Anchored event and the transaction of this day, on BaseScan.