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 0xe61679275291f8d920f019febe1b07061013fc8243969d0264e92b06c7655044. 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/e2ecd1f7-1f0f-455c-92fc-74a6d2e1380e.json and https://artists.proofprofile.net/proofs/artist/e2ecd1f7-1f0f-455c-92fc-74a6d2e1380e.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 0x89713b18a02506c888c5def37d819d5f94fe46ae0bc06ea236b89ccbfdac6351. 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/USJE61200411.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x560c9d610031a2f74beac3e4980d33f40783720d1ccb3d3efe4356bff3ff76d9. Chain 2 (Bitcoin): anchored in block 957531 (2026-07-11T06:55:18Z), 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/USJE61200412.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc7caf39feeda6fdf02b16455ec67a73cc188a7c5c87c47f790fc57c011ae8dfc. Chain 2 (Bitcoin): anchored in block 957546 (2026-07-11T09:35:53Z), 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/USJE61200413.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xce52b388ab59fced61f8e61189d624abf9e903dd97ae73cabcb9d9a52c186705. Chain 2 (Bitcoin): anchored in block 959058 (2026-07-21T21:09:36Z), 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/USJE61200415.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x340c5364360e1efa6699da936a897ce3ef8b5fb8776d7bbb15f5eb4215413510. Chain 2 (Bitcoin): anchored in block 958242 (2026-07-16T05:02:52Z), 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/USJE61200416.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4291ab515e3bad9a0abdb4673ff6c1f444c994a816e5cc7d78189692d5dd10fc. 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/USJE61200418.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2137264421329c8b83d9e9243c19de535b17661c6f7c17f88ae2762b7c0f8465. Chain 2 (Bitcoin): anchored in block 958935 (2026-07-20T22:08:19Z), 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/USJE61200420.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3ccbcd3f11d3ecf19acfba7f24dbe09a26530b68b61069cc588c17e4338403a6. 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/USJE61200431.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5715585bce3f191bca6f7ba80d4dfa1231e6ce37fac29278c895dcb66490063d. 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/QM6MZ1967938.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x89ccf7d17b1e7f7283981d9c2976067bf0b0720f48ea7efbad55c7aa15fd2cf2. Chain 2 (Bitcoin): anchored in block 958959 (2026-07-21T03:51:22Z), 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/QM6MZ1967940.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeacd346dcf1d59aae95c2de89b44961ef6898f5139d94fcb7be22ce1ef283512. Chain 2 (Bitcoin): anchored in block 959091 (2026-07-22T02:33:54Z), 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/SE9822100115.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6545e7adf9c7f4b400943ab06c795ba6ef9e52bc412ff51aa8143c66a3335951. Chain 2 (Bitcoin): anchored in block 958234 (2026-07-16T03:46:09Z), 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/SE9822100127.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2a7496f284db07ff029d09df5be50c0b45373a5216ed9fb056ab39bb69be54f3. 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/SE9822100131.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8f77b35f0fe5a01a7ac9d07bf07b7f665677723ae3164a1b137346a72843dd79. Chain 2 (Bitcoin): anchored in block 958153 (2026-07-15T12:03:04Z), 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/SE9822100133.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2c23ffc7b4eb6518b39d0463c2ebedc6ac27e3a36ecbfa066e112e1ea338dd34. Chain 2 (Bitcoin): anchored in block 959123 (2026-07-22T11:35:32Z), 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/SE9822100101.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x761ae6ce6af7fea2b3b94e78bedb797a0c1df88ad3a08e95ec8a0a114cb2d211. 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/SE9822100104.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0d8648790f801502407ebec00b217aedfdfacf955c1009c732edc102c56d506a. 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/SE9822100074.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8b4ca131d1b3abb8791aec5b255eea28aab1c2c2e5ee34b029224ef6c71aad44. 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/SE9822100077.
El Tesoro Musical de los Andes, Tupay - Viernes de Soltero
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9b7cf3043d7fe5adfe996dc183ea6ad01797326aa19cd1198cacbdd7504b73b8. Chain 2 (Bitcoin): anchored in block 958662 (2026-07-19T04:43:15Z), 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/SEYOK1851871.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9756648d0490291b705230ab777cbf368f2dc607a34bbb26ef1d5c7ef73cb5ad. 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/SEYOK1851872.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1487b7601aee1004f87fb9c9977b72f563125e38279da989f8df34532afcbeb1. Chain 2 (Bitcoin): anchored in block 958202 (2026-07-15T21:23:21Z), 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/SEYOK1851874.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb8301df10bd85c3c10bdaa5152092f580cd87e5655386f7cc811ff290020135b. 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/SEYOK1851875.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfb8ac49aa769a889117055b87872bff73dc72f62017420b80544a8ce837f2d87. 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/SEYOK1851878.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3398d548ef24fde8535df7d9617da67f5aa85e63affd53c59939e1866416afcb. Chain 2 (Bitcoin): anchored in block 958992 (2026-07-21T10:12:17Z), 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/SEYOK1851882.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa55f3abce67b4f7aafb50966d38f13c9e9615e33b61664a1a74a3f57a37d1ca9. Chain 2 (Bitcoin): anchored in block 956728 (2026-07-05T01:43:49Z), 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/SEYOK1851883.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbad26793ede98bae6cb2540505862b99387b490e46986014832e0011c7d65553. 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/ESA112579295.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x488a7eba06b6f6727f60f5fa514f8c6d1cb7b4c39dc84972e40c84d3857a2841. 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/ESA112579297.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaf57cbd99a373fb03502b88126daca4b3940e19e4edbe6194415151439c6e49d. 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/ESA112579298.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa4583df91d1a9448c2a827beaf5caa1c3de43560ae4fd956ecf03f312e902079. 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/ESA112579299.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7d964d8f9dfb390cf23b4ac81ec653772deb18dbee0142da308be3778343fd10. 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/ESA112579300.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x61d483a877604aca07a45560085a88b33c6cef7470f31c25278ddccf7c0a9b33. 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/ESA112579301.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8135676812a56fb65671c617f7b8f5c9c541245a6de7f87c31d9ac822266cdcb. Chain 2 (Bitcoin): anchored in block 959043 (2026-07-21T18:40:26Z), 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/GBLFP2280187.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xde0a5072e42caaddd030af2392e84326c0764d6427579479dad83089637e8551. Chain 2 (Bitcoin): anchored in block 959001 (2026-07-21T11:41:42Z), 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/GX3Q92378942.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9ae76e30eed7ec845a7bfcf06ed93ebd11152d18e857520d71eb4eb01b2b3e7e. 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/GX53U2397075.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbd1be1b8f3dbbebcba75b0fe8dd840d7722e16ee7f3e00783ba96e4a1e2908e3. Chain 2 (Bitcoin): anchored in block 958331 (2026-07-16T21:55:37Z), 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/GBLFP2589132.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4b78a39cb4d8beabc2d3c2a8a4a60ea7fc3a0c6659a45d17470c8ee11f469215. Chain 2 (Bitcoin): anchored in block 956420 (2026-07-03T00:42:11Z), 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/GXHND2593177.