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 0x5d6bdadab0c4341441a5a7142f42f22c5f620f3e244648930b5762ae11397302. 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/05a7377f-94fc-4ad9-b8fb-520abc792189.json and https://artists.proofprofile.net/proofs/artist/05a7377f-94fc-4ad9-b8fb-520abc792189.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 0x2048e7a3212e45999e1616589736c333fe9c3baf21a6fad8e02bc89da4190bed. 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/MXF602300208.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x46652379fe306d44093ea84c2b7e9524a8686ed446fb0e6d6f68dcdfd566fea0. Chain 2 (Bitcoin): anchored in block 958627 (2026-07-18T23:33:54Z), 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/MXF602300209.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1af311ec202513e9149a16f59979595a5086af303e5269c55d8afbc7c2c6e624. 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/MXF602300210.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x34ac701f759e7f698d7895a506da970c0bc998d9e051616c1689abeb72814446. Chain 2 (Bitcoin): anchored in block 956745 (2026-07-05T05:33:35Z), 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/MXF602300211.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x526920991bb8d111670f70ffa0a9b88aa6bb28bf559030060957459018e401fe. 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/MXF602300212.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf1599fb90fc458cb5d363268281919ed07529365008b332bd9abb0369c643db2. Chain 2 (Bitcoin): anchored in block 958761 (2026-07-19T20:03:14Z), 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/MXF602300213.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc11a6a582dfb1171a56a7f5db31a2ef6342b13b8a4a4209af345ff4b706ff845. Chain 2 (Bitcoin): anchored in block 957774 (2026-07-12T23:51:20Z), 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/MXF602300214.
Mágica Noche-Lullaby (versión arruyo para dormir)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd803db662acd9f416ad7d9bb6b7de49d709b05af423eba0a4ef380c867e7e50f. Chain 2 (Bitcoin): anchored in block 958185 (2026-07-15T18:19:04Z), 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/MXF602300534.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x020c456e384843d7868d06962d03bc05f799b745dfebfdfabf7d2396cbf6a036. Chain 2 (Bitcoin): anchored in block 956738 (2026-07-05T04:47:21Z), 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/MXF602300535.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8a7e870bf05bb02e60712c96abf37b68992c542c0a071c76332b8f44cefef1c8. Chain 2 (Bitcoin): anchored in block 957770 (2026-07-12T23:17:00Z), 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/MXF602300536.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5b09c9643acf9b300db26dd86daa4ecbd613299ded7f73422d16e41ca3f2415e. Chain 2 (Bitcoin): anchored in block 958286 (2026-07-16T12:43:37Z), 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/MXF602300537.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x353528e0504f539043d902a11de6d3d30cb597e3082dc4ad234e55577e877f22. Chain 2 (Bitcoin): anchored in block 958484 (2026-07-18T03:34:53Z), 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/MXF602300359.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x03003427a7714a7f1df17696ad5f0c731c5c32b901bd3e856061affe75a16aa0. Chain 2 (Bitcoin): anchored in block 957772 (2026-07-12T23:31:17Z), 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/MXF602300582.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2f6cdbc309245b56ad990c3d40d0a692688aa24fadc16bf0b31bb8f9c4282fb4. 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/MXF602300478.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe9a04357eae154d9002fbd15b80e9351c886b8188d554fe6bad0b9648897dfc5. 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/MXF602300476.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6284ed47f6b844283948254b06e5aa110a23b7b3d8212b98bdc6375d5e59baec. Chain 2 (Bitcoin): anchored in block 956889 (2026-07-06T06:56:49Z), 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/MXF602300433.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x46f20bd08b8bd75a538d1e1329fdc8071b57e3ce9b371ccee36edab6c18fd26b. 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/MXF602300382.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe965886150748e4747d65450a821c734ef6ee9621b432e62ba2eb78c04d787b6. Chain 2 (Bitcoin): anchored in block 958180 (2026-07-15T20:43:41Z), 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/MXF602400101.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1cf1d4b96dc45ab24bb929f5af71361dc1f56ae9986ce37f33289898c05909e6. 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/MXF602400223.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb6909fb14de31880c5f0035b6a926116ec01e8eeccef13437e81e751a4e09e4e. 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/MXF602400250.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x58e5fd7ca26a66958d50cece88391546c02ec9144c80750359d8485d8ff14bca. 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/MXF602400267.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe0510c8c298ab07450508a247d35cb52db481647dd5c773473aa4379dcf6d137. 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/MXF602400271.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x56111d2b2839d77b0629c0edb4db4833721b74c3061a8dd66222bd7817661be9. Chain 2 (Bitcoin): anchored in block 956738 (2026-07-05T04:47:21Z), 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/MXF602400286.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x13fa828a19ca396e2e25712e1daaf9dabd3a24c1be7f88b3ae4d235d2c18d4a4. Chain 2 (Bitcoin): anchored in block 958823 (2026-07-20T05:43:51Z), 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/MXF602400289.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe5fcead10367e0a3e035d736959e1a7eaa64ab398da100932761d5fcf3d60140. Chain 2 (Bitcoin): anchored in block 957771 (2026-07-12T23:27:28Z), 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/ARF062500216.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6c58de3682085da505420df0f2088a11796f37e0d898bfcfe495611a21d4e218. Chain 2 (Bitcoin): anchored in block 958761 (2026-07-19T18:58:59Z), 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/ARF062500188.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa20f6ae4421d6b842cf8e3933408e11b7418eb903f7489ca66b4c1fba617c0bb. 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/ARF062500253.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa0e3300ff36daf2c3e5780e67673a83fa581904cbeafa3a4733d118c636fa26b. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), 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/ARF062500312.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x13d3df0bed884275b858ab1c4716ec51286798cd691a20762e2ec229c83f50c7. 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/ARF062500325.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc60625f6222a4fa71079ed3e85e43ad4f8e9e5cc5fbe756d3339bcf7a50843d9. Chain 2 (Bitcoin): anchored in block 958300 (2026-07-16T16:14:30Z), 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/ARF062500482.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x08fba0192c36b447eef24b5b2e61c9ff79d1e257470ba60506a3009fbd7f87b2. Chain 2 (Bitcoin): anchored in block 958300 (2026-07-16T16:14:30Z), 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/ARF062500517.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe1e5d0d7a5df934190d5df5f27f67935e70cca3c615134a686198b4430231899. 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/ARF062500573.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb97f907243309772c72bd7b55a880afa598ab8276e7a066e5c5e945a71505006. Chain 2 (Bitcoin): anchored in block 958316 (2026-07-16T22:08:17Z), 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/ARF062500535.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7f9a93a91f5c744a71d0aed77c59663516abc1b89d39a5dace7a4a314ecf0b5f. Chain 2 (Bitcoin): anchored in block 958644 (2026-07-19T02:21:25Z), 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/ARF062500877.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x75cad0f60cc558b0d968da994aebda8db1b3f8e4caad0e8789b7850e6c2b6b89. Chain 2 (Bitcoin): anchored in block 958342 (2026-07-17T02:36:42Z), 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/ARF062500878.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x69f9fd6e97047f6071b7445a9738f84928b95f4d86f9f23d30b8149e30ed3afa. 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/ARF062500876.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x21b532ebe0c70dca22be36e6f8ec51722d6bb58b6650b88a026de0edc7da375b. 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/ARF062500940.