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 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
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xec027b1eb76517c029e27902fd138d00cace2e9681f6cbfd2a8321e71041c5dd. 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/2e3fd25e-1a9d-4dc1-bc5c-b464514d6944.json and https://artists.proofprofile.net/proofs/artist/2e3fd25e-1a9d-4dc1-bc5c-b464514d6944.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 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
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4bdb8ecfdc0604e785c85164de950a56dcecb555ebcdeff563639129b4a21547. Chain 2 (Bitcoin): anchored in block 958991 (2026-07-21T10:04:40Z), 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/USCGH1379843.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb095f302183c87b7d8250f77569e86c18b597ea33aff0b7db7235ca7fbc6f6c1. Chain 2 (Bitcoin): anchored in block 959118 (2026-07-22T10:01:58Z), 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/USCGJ1895874.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6d193bb24fadf80fa6410b8f20a724d4c0c43752a5b480b710973ad2d121d091. Chain 2 (Bitcoin): anchored in block 958224 (2026-07-16T02:28:43Z), 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/USCGJ1895879.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x835d1d398dcdf1d79f43facb423d5cb9863b459660855ce6c6354e9b56d411cf. Chain 2 (Bitcoin): anchored in block 958169 (2026-07-15T16:16:18Z), 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/USCGJ1895881.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x106c106c3bca9307afb81785153c30af063d831838577bda7be67ebceb4bd7f0. Chain 2 (Bitcoin): anchored in block 958444 (2026-07-17T19:12:23Z), 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/USCGJ1895883.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2c1b32cdf79d76a423d1831fa550d8873e4ae8c3f474eb7f0100585209a1ab94. Chain 2 (Bitcoin): anchored in block 956474 (2026-07-03T08:56:35Z), 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/USCGJ1895884.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9c0a3ceecb1b33a7e68a1a09cb90337936ed764a28e83ef39216d074535d4cc2. Chain 2 (Bitcoin): anchored in block 958951 (2026-07-21T02:01:41Z), 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/USCGJ1895885.
The Light That Shines - Instrumental Version
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0618c57a1c5ca99f8c68f369c3463630cc8579f105faff03dd039db51113b9e3. Chain 2 (Bitcoin): anchored in block 956856 (2026-07-06T01:25:57Z), 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/USHM92154544.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfbbd82821238ad5bed35ab7e23c11d647d7c2b0ab683762f0f5c2265481cdc32. Chain 2 (Bitcoin): anchored in block 959047 (2026-07-21T19:17:28Z), 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/USHM92154545.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xedb662b8ab598bca98244a68d4e40d416bc4b329962212c8f4b7aaf7667cd2bc. Chain 2 (Bitcoin): anchored in block 956822 (2026-07-05T18:48:28Z), 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/USHM92154551.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1a360226a4bdd407cf6af4c6f6303da9e6fd9232d8567628d82943f9994af93e. Chain 2 (Bitcoin): anchored in block 958985 (2026-07-21T08:39:15Z), 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/USDY42436243.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe765bb5d97ecdf1c846dfb5eb6a204b9e0ce5ea3700dc6db6d267ef096a3efb6. Chain 2 (Bitcoin): anchored in block 958111 (2026-07-15T06:58:20Z), 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/USDY42436245.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xad86ce39ca60cbf00c982a188a9df84ce6dc97370e1094be0bd75c969d198ea2. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), 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/USDY42436247.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfebef0caead478affd126eb8df78e8a8b6482ab5abeb2726ee2886724ffef4cc. Chain 2 (Bitcoin): anchored in block 958510 (2026-07-18T06:38:22Z), 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/USDY42436248.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xba38b70a66021e1036f85c5a9c2aa3b8b3963473b25c819eb48275d2df2111ec. Chain 2 (Bitcoin): anchored in block 958832 (2026-07-20T05:43:55Z), 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/USDY42436249.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaec1b227ebd8c28ea02f3e1e9a17c3e905bee17541492ef77ba3dff464d9df53. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), 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/USDY42436251.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2bcc9f9b9637800efe0c21adaddacc56d62f0ae4f7864979bac6f493b2ce3b71. Chain 2 (Bitcoin): anchored in block 958742 (2026-07-19T14:09:34Z), 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/USDY42436252.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x206cfaeeff0ad17e62702478dbef8965feaa0fe270f2cff4c01b9c782974ecd6. 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/USDY42436253.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x891be386c8ebe7769f2501a5e8513400a93fdc8b79d0cad5d0aa48e162566380. Chain 2 (Bitcoin): anchored in block 958731 (2026-07-19T12:35:36Z), 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/USDY42436254.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x51f18215a4e6269f782ffec0ed13556a96be70350c00feb415e7e986af8fb057. Chain 2 (Bitcoin): anchored in block 958567 (2026-07-18T15:22:40Z), 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/USDY42436257.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe77e25e2a165bab8d4864a393a5bf65f937b7c3733331464efdc2a9e4803029f. Chain 2 (Bitcoin): anchored in block 959103 (2026-07-22T05:56:21Z), 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/USDY42436258.