Captain Jeremy Lister (28 September 1752 – 3 April 1836) was a British officer in the 10th Regiment of Foot during the early days of the American Revolution. His journal was later published as Concord
1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. Open OTSProofURL → extract Bitcoin block number → must equal OTSBitcoinBlock 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Read CopyrightID inside OTSCanonicalRecord → must equal the CopyrightID above 5. GET OTSVerificationAPI → pre-computed 6-check result from server 6. If all match: this entity was registered on CopyrightChains at OTSTimestamp, independently verifiable on Bitcoin
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5505e0961ec7960390469c5360b55423d4e5bff37c6e6234d34296926ac1fe6d. Chain 2 (Bitcoin): anchored in block 953407 (2026-06-12T19:24:56Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/7bd18098-f88a-4f18-952a-9d49876479c1.json and https://artists.proofprofile.net/proofs/artist/7bd18098-f88a-4f18-952a-9d49876479c1.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcf90a64f3b149205b5f792598a88c510ca39b50d3a1461cc771ae324adf8182d. Chain 2 (Bitcoin): anchored in block 958331 (2026-07-17T00:50:38Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QMRY42101784.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8643f61bceb7ea987859c9c764c9d0a964d217882f5f6e2a2003d154b3b37c4f. Chain 2 (Bitcoin): anchored in block 956476 (2026-07-03T09:04:44Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QMRY42101667.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2aaa97bedb5d6b03da3e320cd789509ebc5c2134d93d2b0acee1a4b84c32aae0. Chain 2 (Bitcoin): anchored in block 958245 (2026-07-16T07:42:18Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QMRY42101500.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x177f6c5d4111beea5f5f69a886ac4e0db67ca6b20eccc244904b7321aded6d46. Chain 2 (Bitcoin): anchored in block 958867 (2026-07-20T13:49:11Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QMRY42202212.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb93e833764caeb61fdf8c742e636a52d120d68caec59ac023e2d75b0a9a58805. Chain 2 (Bitcoin): anchored in block 956639 (2026-07-04T11:19:20Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QMRY42302242.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x77b2bf840edb7ba60e3a1352a276984eef5f83162f5308cfc1ab2ba79b09f652. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QMRY42101602.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa5e7f925f27cf7e6bd148494386616ad740afd6374dba2e5cef3f6c8591bb85b. Chain 2 (Bitcoin): anchored in block 956440 (2026-07-03T04:03:57Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QMRY42402491.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x421b09f92235eab43cde263831ea67bb1a0d5fc1d7f856309a505eb8e6983a84. Chain 2 (Bitcoin): anchored in block 958924 (2026-07-20T21:41:33Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QMRY42402592.