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 0x00338160b7e670204ef3337589c47d9d18af1b81d55992fac08f7d00be37de5f. Chain 2 (Bitcoin): anchored in block 953408 (2026-06-12T19:28:13Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/f2be42ff-aed7-4e41-8ab0-2bba7e47af46.json and https://artists.proofprofile.net/proofs/artist/f2be42ff-aed7-4e41-8ab0-2bba7e47af46.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 0x49a50555932859e25f5d0f06b23cb77ad84f23ecbc295d3afe9c5717c5be7fb9. Chain 2 (Bitcoin): anchored in block 958303 (2026-07-16T16:39:24Z), 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/QZPLS2589267.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf28dde6708490b3bc6702e50247afe9f87eb08d4c6d2e332632e8ffeb72a1f7a. 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/QZPLS2589268.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x353a93ecad2284a216a372a6b28698d2ebaddf19dc878ac1cc60f775287895a1. 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/QZPLS2589269.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb0d8adbc14230d8503e37d3a7dbdff26cd2a84325d1c40f6f76e734d26b464b0. 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/QZPLS2589270.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x929fa0e7c5053fedb9ef59d78de5a8f1a7877f2fdd2e7f3bd26fc1b5da58f176. 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/QZRP42532797.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5e85ad9feb0c0bd84f7702b282549afef2b70867e95303b4334458d1ceab64b9. Chain 2 (Bitcoin): anchored in block 958350 (2026-07-17T04:44:22Z), 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/QZRP42532798.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0f213bb538453ee8331584ad97909ac9bda8d61eab322e9b6737f3a67f7304db. Chain 2 (Bitcoin): anchored in block 956790 (2026-07-20T00:24:42Z), 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/QZRP42532800.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7fe7db3dc106887612f50f209aa647db81947f2693d7b3cf19d20d75c1340f10. Chain 2 (Bitcoin): anchored in block 956560 (2026-07-03T23:28:02Z), 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/QZRP42532801.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7d1f7895b9ac2d971c1e72a4b97149ad583c922b1b68b79f41a8a19dadb92640. Chain 2 (Bitcoin): anchored in block 956656 (2026-07-04T14:03:39Z), 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/QZRP42532802.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x22b170b435cc523637efd64b890832ca92e2596a89fa752ceb4fb2bbdad4c8e6. 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/QZRP42532803.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9f667abc6e2676b3382e76d0d167a408bfacde159d9ce4badd371df08e5114a6. Chain 2 (Bitcoin): anchored in block 958465 (2026-07-18T00:04:42Z), 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/QZRP42532804.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xce97626e5d37e50517774f34c67928f344ec60de63458bbc22bd8f169b3cec3d. Chain 2 (Bitcoin): anchored in block 958520 (2026-07-18T08:19:09Z), 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/QZRP42532805.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbdecdccfce599e8bc0269959487b3875f3184bc4bf4e30da2fb468cd142112b3. 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/QZRP42532806.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa075658b2fa4ffa53eab411b5781f849fe09c0e42f4ff43fdc5f09758497b07f. Chain 2 (Bitcoin): anchored in block 958468 (2026-07-18T00:27:51Z), 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/QZRP42532807.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x59ea8bbc62afe74da1da140786aa2f612fd3b642a951d50cdf52cdd55cc977b7. Chain 2 (Bitcoin): anchored in block 958238 (2026-07-16T07:10:30Z), 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/QZRP42532808.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0e1fd907a7a21993f896b8bbff04f3ace42f208ab353a7f519b073ff20ce0777. 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/QZRP42532809.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4b1abc11c0d2b522e58505b9f679362f7fc14842bc03f1117f79d76add5166a9. Chain 2 (Bitcoin): anchored in block 958544 (2026-07-18T12:14:37Z), 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/QZRP42532810.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf8b4d8d6ca1f6e66b46e9e682938e4f7e65c8ae0e39bb231ccd664fb8b1e3619. 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/QZRP52516152.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2ceadcd5998d9ea00498c1a240731821b6904d1f05b3ca71eec492fe917f3f41. 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/QZRP52516153.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdb832c6d0829000b2855adfd5c2e6a5a661a75b9990d1809ad87afbda0458d39. Chain 2 (Bitcoin): anchored in block 958331 (2026-07-17T00:50:13Z), 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/QZRP52516154.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5223c804b1284b499c1097633a8c94bde9abdcd2f9ffbab26816f872a60cf817. Chain 2 (Bitcoin): anchored in block 958383 (2026-07-17T08:20:01Z), 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/QZRP52516155.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8222ea414154bbdb5f1c989684a716bf92946c691d27dbfe48e560b8aebfed25. Chain 2 (Bitcoin): anchored in block 958526 (2026-07-18T09:09:53Z), 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/QZRP52516156.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9d374dbdf28fe51ae4b302b0cbc9fea62775e75d0946b8060193a4bf4d9f5e7d. Chain 2 (Bitcoin): anchored in block 958468 (2026-07-18T00:27:51Z), 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/QZRP52516157.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5fa6a04f76d5e9e856576198a6e128d23f0c263efe43543d6890a13240d22651. Chain 2 (Bitcoin): anchored in block 958474 (2026-07-18T00:59:09Z), 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/QZRP52516158.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe787a6acd640c61aadab31efba97270c370589931487e2f54566a1573e491d17. 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/QZRP52516159.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x32f64c2092d29693a18f8af32cb8cf875536a8475e91197d3b93bddf9d73e4f1. Chain 2 (Bitcoin): anchored in block 958180 (2026-07-15T17:59:52Z), 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/QZRP52516160.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x75da68d1d166c50c8a83dc2de9d2823e5749cf7310e11c19eca49cd0b4ad1998. Chain 2 (Bitcoin): anchored in block 959105 (2026-07-22T07:54:47Z), 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/QZTAS2560058.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x68c1e7d994158284b04e5b53455839fa3e78b1728b95880377a8858cd24dc4b4. Chain 2 (Bitcoin): anchored in block 959146 (2026-07-22T15:41:47Z), 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/QZTAX2553351.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7ae199da7e82829911dd738417650f80eb23405114cca97b2d2b0f7a5c888ce7. Chain 2 (Bitcoin): anchored in block 956857 (2026-07-06T01:26:17Z), 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/QZTAX2553471.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe7c06e759d652a218dd596a6b683c0d7a96a224e80e3bc81d2bae38f4553d3e1. Chain 2 (Bitcoin): anchored in block 959145 (2026-07-22T17:51:42Z), 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/QZTAX2555537.
Ce n’est pas un rêve, c’est une addiction
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x635db35b34d1cb678d4c6d6a87b768975163352ab61bdd159e65098c70826718. Chain 2 (Bitcoin): anchored in block 958827 (2026-07-20T07:38:32Z), 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/QZTB22574263.