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 0x76db1c37223c8ebeaefad9ceea6118686c6e7c2fde651c07fa0296902bd0ac35. Chain 2 (Bitcoin): anchored in block 953742 (2026-06-15T04:47:56Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/759a21ba-f5ba-4429-84b6-adf491becba0.json and https://artists.proofprofile.net/proofs/artist/759a21ba-f5ba-4429-84b6-adf491becba0.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 0xac63309e7ed93eb735f6a90eafd385a4ef292c82189faed2bd451d1a1a9136b3. Chain 2 (Bitcoin): anchored in block 958489 (2026-07-18T04:13:26Z), 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/USY242458483.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x600aabd524094631102fdc51756abda336a74e95a85516a364b0fac10a259e50. 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/USY242458484.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdbf7454d947ac3422330632e8de2601113bafb551c12ec995e88a0d76ea83617. Chain 2 (Bitcoin): anchored in block 958765 (2026-07-19T18:01:47Z), 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/USY242458485.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5cc5000beea9c1168296bb8b7dc31b98ade5bf9ac9ee9c92df3ea571e2e4780a. Chain 2 (Bitcoin): anchored in block 958756 (2026-07-19T18:58:26Z), 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/USY242458486.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x57b8219b8ffdc239f385ddc203e8180f95e26cae4e5f6c663d338d1267d6f006. Chain 2 (Bitcoin): anchored in block 958785 (2026-07-19T21:40:06Z), 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/USY242458487.
No Te Voy a Invitar a Mi Cumpleaños (En Vivo)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc93c6098584ababb5175cb6fe5561ad3d5715ddb8f7f93ebb4f1621e2e2401f9. 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/USY242458488.
Me Importa Mi Familia No Me Importas Tú (En Vivo)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x887dfde2559f2f1e257ba0485eccc542937fc0d6efe4dfebecc47f1e9ce7ab9a. Chain 2 (Bitcoin): anchored in block 958798 (2026-07-20T02:55:24Z), 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/USY242458489.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x586cee4a6f48475d41eabe7386d80efe6ca3920ec925aa8f37f89f38b0fc84ee. Chain 2 (Bitcoin): anchored in block 958812 (2026-07-20T05:51:07Z), 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/USY242458490.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb93b1bd0fdc12983dd1262e0e54c4bd4a0408de68b08eb287f7c3ee326947bb4. Chain 2 (Bitcoin): anchored in block 958863 (2026-07-20T12:59:57Z), 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/USY242458491.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x86908cd119a063c3e051ffeeaac6b92a3392143ba1208fac65c8243125b82d0a. Chain 2 (Bitcoin): anchored in block 956776 (2026-07-05T10:59:37Z), 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/USY242458492.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaa94d026d213f7b99b660543f06569527a51175ebc4c35e4cfe86e27d8d44b20. Chain 2 (Bitcoin): anchored in block 958756 (2026-07-19T18:58:44Z), 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/USY242458493.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdaea4437bfd22acbdfa921cbfa8fee3df7dfdd02d759590fb0e15aebd5050543. Chain 2 (Bitcoin): anchored in block 958489 (2026-07-18T04:13:26Z), 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/USY242458494.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5780e810fd20c0d2e9b7ae41e4ecfec63037af14c8416fb228acdaf37725899d. Chain 2 (Bitcoin): anchored in block 958842 (2026-07-20T10:05:21Z), 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/USY242458495.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5b69c27bd3410f766ebf2c70f28ff899108647927c66e8d3c2940baf07938cf6. Chain 2 (Bitcoin): anchored in block 958761 (2026-07-19T17:49:48Z), 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/USY242458496.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2797ccfcab8ebc442874f02e1effefb76357e6e54e752bbbcbb7dc3a1c88dbdd. Chain 2 (Bitcoin): anchored in block 958805 (2026-07-20T05:11:29Z), 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/USY242458497.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x08314545f37e1c13b183e175080c06c8c6587f30950b4ae5c65ab7e327a27f7d. Chain 2 (Bitcoin): anchored in block 956776 (2026-07-05T10:59:37Z), 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/USY242458498.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0a4062527a2d88007397a31107d10b3eec26bd711c9ce4234af0c152a66c6db8. Chain 2 (Bitcoin): anchored in block 958779 (2026-07-19T21:08:39Z), 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/USY242458499.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb848b3443499a8c966bef0c2471a1d2cd79a54a1d94816249cbe1e48d5f9bbab. Chain 2 (Bitcoin): anchored in block 958839 (2026-07-20T08:33:48Z), 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/USY242458500.
Gracias por Hacerme Colaborado (En Vivo)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9f4b9fd81d844d2f5eefd3d961cbb137efbf9438178c91abd2023dafeec700be. Chain 2 (Bitcoin): anchored in block 958775 (2026-07-19T22:48:54Z), 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/USY242458501.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2dfe7af27cd5eca5894085931bf6819ed07487fbab5f938fe7561ebddf908612. Chain 2 (Bitcoin): anchored in block 958800 (2026-07-20T03:09:17Z), 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/USY242458502.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1e0d3669b009f9b31f8a65d5039f543ba8a079aea7d069d2d772e98231dba19b. Chain 2 (Bitcoin): anchored in block 958251 (2026-07-16T06:29:25Z), 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/QZZ7R2570315.