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 0x8e3aca076ef3f76649b765b386e9384d331e45ed6ea32ca1a4d23f9ef92d5d5b. 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/4f6040d1-8eb8-4513-9594-3e4c242a9a3b.json and https://artists.proofprofile.net/proofs/artist/4f6040d1-8eb8-4513-9594-3e4c242a9a3b.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 0x91cf47b53fb284e8590e7ade87fe66fb9f1188fb90f708140a7d0c25386b79d8. Chain 2 (Bitcoin): anchored in block 956728 (2026-07-05T01:43:49Z), 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/SE5Q51800229.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdd917749e30acbfb6dcdea9d5d531b5d3c6505511f6338e2f660fff279c9a302. Chain 2 (Bitcoin): anchored in block 958793 (2026-07-20T01:45:13Z), 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/SE5Q51800855.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6bcb245ae1a0767027a3e84ac0a1105dda558876c540ad817ccfac07af0f018f. Chain 2 (Bitcoin): anchored in block 956891 (2026-07-06T07:16:32Z), 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/SE5Q51814746.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfb8223ec56d49ffab00ebf5190a5bc3092c96c209f42124b298ca5ac801e25d6. Chain 2 (Bitcoin): anchored in block 956551 (2026-07-03T21:18:05Z), 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/SE5Q51902088.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd00395f3ff207f500ba37d3c65a70d35c19ef27ba27e4e10ba163af35969fc3d. Chain 2 (Bitcoin): anchored in block 958271 (2026-07-16T11:02:12Z), 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/SE5Q51902941.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x636d559791bbf64bc47e9208dd42281da0a63372abcf386a3cb0ead34d6725bb. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/SE5Q52000592.
This Water Is Sleeping (Inspired by 'The Outlaw Ocean' a book by Ian Urbina)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x756af19990cd0e767419eb9cbceceae7488eb86b3a5185c3a7dd44829d68d677. Chain 2 (Bitcoin): anchored in block 958612 (2026-07-18T21:29:37Z), 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/SE5Q52003385.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8db0f0263bd245413bd873cd632bf102397ba8eebdc8a50e7c2fd44be7caa51b. Chain 2 (Bitcoin): anchored in block 956790 (2026-07-05T12:31:54Z), 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/SE5Q52003787.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x42c9928cf149ab38ab3fa61383bbc5509b18586f4c81d171c4c3938a76d336ab. Chain 2 (Bitcoin): anchored in block 958357 (2026-07-17T03:33:42Z), 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/SE5Q52101437.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcf623b919ef96b328731f0afed09d6f7c1d7df3f02f4d5fed67509702de5ea9c. Chain 2 (Bitcoin): anchored in block 958601 (2026-07-18T19:27:02Z), 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/SE5Q52101467.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x38ce01735252a63fc875f50f59bee509cb0806635706cc5ed459bfae72c31828. Chain 2 (Bitcoin): anchored in block 958612 (2026-07-18T21:29:37Z), 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/SE5Q52103203.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x79de8f21c698203a1a254c537e6d559359e8b70ddf4b8d64d5373e52debddbe3. Chain 2 (Bitcoin): anchored in block 958726 (2026-07-19T11:47:20Z), 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/SE5Q52104381.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x745f01133dd8762835dc5de8e21512eb3d9bd94e1f3b846ed30b0af8af701cea. Chain 2 (Bitcoin): anchored in block 958341 (2026-07-17T03:45:04Z), 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/SE5Q52300685.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3e2179e76301c6d46da685a970fec3ba9b9145072bdd55fd98e55cd6300d3241. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), 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/SE5Q52302974.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x76efd615df6b89af8c14c0ce21d84c141de85bce5ca6e73f53c69348c199e644. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/SE5Q51902102.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd61a8ea04db2e3c686d413727db6eb868e03aefdd58f7d7fc32bb08bcbd75b5b. Chain 2 (Bitcoin): anchored in block 960397 (2026-07-31T12:24:41Z), 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/SE5Q52000671.
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 Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch