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 0x5dd4bd484a490c779ae699ef70a9d1cb19a1246f34b582f35a4b4a1687404e76. Chain 2 (Bitcoin): anchored in block 953770 (2026-06-15T09:50:11Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/baac6a7d-e5ae-4cdd-a2f7-84bc3d0a1ea2.json and https://artists.proofprofile.net/proofs/artist/baac6a7d-e5ae-4cdd-a2f7-84bc3d0a1ea2.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
African Scream Contest: Raw & Psychedelic Afro Sounds from Benin & Togo 70s (Analog Africa No. 3)
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 0x83d2a6c6f6e53beb836d586590f9a4a8d3563eea21802436acccb06114d97d3d. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/DENR91063001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x09226717d220712a28e2c1904916a7917596bdc48de626dfbbc0e44b1979f733. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/DENR91063003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbab00c53be97f62113ed45c11206f64c9f3c6856b6654e465892c586c5dbcc51. Chain 2 (Bitcoin): anchored in block 956349 (2026-07-02T11:34:59Z), 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/DENR91063004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x854eda1ca40c2ae7c7f4dfcb35ba29600e053695727fe4c68261ea71cbfa899b. 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/DENR91063006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x62b0c0b3a9370c80edc47810a088de08a534c0cee0b1d09b281b90025931acd8. Chain 2 (Bitcoin): anchored in block 957064 (2026-07-07T16:43:08Z), 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/DENR91063008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x97884af9e0bf934d20e6eedd780415784469106417d2469ed583c06b11ccd9d4. Chain 2 (Bitcoin): anchored in block 956349 (2026-07-02T11:34:59Z), 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/DENR91063010.
Benin Passion, Vol. 2 (Le meilleur des années 60 au Bénin)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xedcc853477f3ec9bb611f75ef9ce0aa07840fbad8c319200749e796251ed092b. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/FR3GQ1101600.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x92937073d069e629af8a0e3429d9f291534920320d714a38d109a122717e8227. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/FR3GQ1101610.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1765632bacfa5d24c153270972c28f63229c12c6bc03b47f84bd32edb5cb3605. Chain 2 (Bitcoin): anchored in block 956349 (2026-07-02T11:34:59Z), 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/FR3GQ1101620.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x59e3f90a0b5f83972380c6e0dc54f867128f1febd03040c9aa6ccf9c5fe4f165. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/FR3GQ1101640.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x26d379d5ca905a549391b45ae3cf54b6f95d604b985ec66e3e7c701fa0288552. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/FR3GQ1101660.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf2ee441afd127a9fb47be1d1d43e8ad99be0fd78ce2de85739854d7531aa17d1. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/FR3GQ1101670.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7944d19ab7050e119bfaa0e3ef8660ee24707b6ebf01c5a9902a560b5bd48086. Chain 2 (Bitcoin): anchored in block 956349 (2026-07-02T11:34:59Z), 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/FR3GQ1101680.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x373022c896bfc47c2e7af11bf23583b55054cb9da2abaea5d7d2a51d9c697ad9. 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/FR3GQ1101690.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3dc86d999bcfb26238f6302673f1501f41bf41d931a0e58869c257023f9a5f61. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/FR3GQ1101720.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8f25d4ed520d275ec49e1adae9f35f2397326c4e1bc4ae4f610228904aee35f3. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/FR3GQ1101730.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaad69ed5a4060e334e5b0a6a4c07aac10520ce6597ec97d4751a0d238a17ff51. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/FR2X42375183.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaf98c5e11fb1752fdfa1249282b9ed05783f13550fde4781a7a6e208617978b7. Chain 2 (Bitcoin): anchored in block 956349 (2026-07-02T11:34:59Z), 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/FR2X42375184.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf45e0f08002461b9d122f90368acd178105ceea214e481c0a0144b9c9606133f. 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/FR2X42375187.
Best Woman (Analog Africa Dance Edition No. 5)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb1b092472c67bb94310dac228c5364228fdab34dc6d4d73a25cc6a7ad620151c. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/DENR91705001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb578eba177e2234b6aba842f53f557a63dfd42d54a928a0c921ccafd1f59a46a. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/DENR91705002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf1bfd2a0b3026ac28ec095772b9012ee5b4f3b97b7e584917fb02c23bd3fda8f. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/DENR91705003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x153b97b2d4a0d0176e7fff14bbf679e11adece8b8e45e9f1c93a35595c61e3b8. Chain 2 (Bitcoin): anchored in block 956349 (2026-07-02T11:34:59Z), 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/US6QR2400050.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8a7d6ee445b0990823e80f0af6d7212f24b94b34927b872664a13dfc18212484. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/US6QR2400051.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf4d992c2cd3f4050097d5681534726ae188c1bfe965ef4eebd71b2a8b1d28a34. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/US6QR2400052.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2af341347e3b1e87e54aea0dc4ccf381d10f68a108ad7326713ca306ab12b47f. Chain 2 (Bitcoin): anchored in block 956349 (2026-07-02T11:34:59Z), 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/US6QR2300084.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xee43584142373a020ac35f5cfe80f058fd32a724cf940b81bf0dc553bccbff01. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/US6QR2400054.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x66bf48375a6bf61d9c4fe969bc6f896eaa1f9816ce44913c713d76351ba3ac0e. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/GB5CD2417105.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf278b40eb03f8af0c811d862e079d9e47a4b6470167e232f6ba0c65fc82afc80. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/US6QR2400055.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xea7b522fcd04375d4d34855d987d15802a711a9f93a742f7e5f1872e4794fa98. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/US6QR2400056.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x69bc95566de1599372f844ce7d25abff28262a4995acd6aae17b8be6884cd50e. Chain 2 (Bitcoin): anchored in block 957056 (2026-07-21T23:09:02Z), 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/US6QR2300058.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x907bc5cf2e0e1ea78977b193046193524e728a1bd9a7d56185a19228f4659cf9. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/US6QR2300075.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe9ded5cc804bdf9e7c25411497c3a552d9909f449c6963d20501ab5a4ad5b4d4. 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/US6QR2300079.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x71bce8fb418dc0b7b9e810ef008d3f82791ce730581ec87a6408c31db37ba4ce. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/US6QR2300063.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2af341347e3b1e87e54aea0dc4ccf381d10f68a108ad7326713ca306ab12b47f. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-22T05:29:51Z), 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/US6QR2300084.