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 0x5999d4fb28e8215c0178f67c73831b0855f72b1678049c5150489e403b27100d. 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/27a13aa1-b727-43a0-98f3-bccc019ae91c.json and https://artists.proofprofile.net/proofs/artist/27a13aa1-b727-43a0-98f3-bccc019ae91c.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 0x2a513b6da6bd040108a124fe5052cc7e26c68a0d0211fe4a6daaa2dbaaadd212. 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/QZDQH2388660.
Intro Medly (Mi Plan / Quiero) - En Vivo
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x11e793e5ea2d774d638c5691f2855423a732b3e1b5953a62f126db68bd7f25be. 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/MXB952200027.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcf9aff7da61426f008e5ae69d096df908e50fe70f630891136ddd9b54a945b80. 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/MXB952200034.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0c753d3bd2a7f6465377e94e62b6ba83426cf13ee1bc54011caef0ef87de3b2e. 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/MXB952200028.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9e3ae6b2241cf80f606c1671b931c5d2c70e4887260999e0d3ba0fc0b3116e93. Chain 2 (Bitcoin): anchored in block 956894 (2026-07-06T07:53:57Z), 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/MXB952200036.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc068f5a6df8292f9e2dd34cd9676672292e196bc14c9136960e79caa63c8001a. Chain 2 (Bitcoin): anchored in block 959137 (2026-07-22T14:03:35Z), 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/MXB952200039.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf9d6ffd430d80d67af072a473f07bfedc7c89f277807cf74ea71b14b49529a77. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/ES64E2507650.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x845b5be5de0f4741e30b53044b9d13b9b5e0befa7c28bc2fec0063b678913587. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/ES64E2505937.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3d9199c15e7346c6340ce3ce8da9388ca612767ad01c32e2b034419fcd394499. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/QZDQH2443725.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xde73b3df24f9ed8691423ce276bf1de84ca9697ff328c325b8179974a1467221. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/QZDQH2435975.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5ebb50e1e7c1be4fb228377cc8fe71290a8d6ff1bd6535567b973f8d2d1ef10e. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/QZDQH2433864.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9450edf01c72c55c6456721c191883bdee5b6cdd25f58111daa9e995db57a9d0. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/QZDQH2384141.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7391173cb879427f1aabfedf2747204db1e2131b763c0d465fad88b97cd27b29. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/QZDQH2375187.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc0537bf69b334d7b6cf6e4e95b91fe94fd7de89974e4eb9763a99d84eb53a155. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/QZDQH2372461.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc897d677ffd26651c7971e41ad3752c27f7e979d636b16489d2032e56d2c2c7a. 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/QZDQH2369266.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf0c8f80e521ddb7191f4458b59f15da109a4c2624276a884fe6f4bcbe6e792b7. 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/QZDQH2367575.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x64644602b29fa1a7a4e6e333a892914d37db4c6176c77783e69d08fea05268c2. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/QZDQH2363300.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x379a4baec79f13887bd8ff44f8102f29c4fd0c441b597f76e151579270361629. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/QZDQH2273349.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7db36f4b9c59c09eddafe2329d0f7d87055399b3d1b75761e52a199d07cb1527. 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/QZDQH2269024.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x09142165aa78f265180a6ab8fab2790abd8fc7a3d49a7b334fb01125c88f575b. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/QZDQH2265071.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x266ef906fa3b791f7d927763306d8925571f302e944df5a14c306792ac9bc8be. 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/MXB952200026.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x28800fa17c45e89b727f303fc0f204602a490dfcb8e7480e79d7c8f6b49484b2. 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/MXB952100117.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa1cf97338eda4d137d6c43dc688a164768e5b0dce246448feb84df897a8d42a1. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/MXB952100078.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x62cfecbabe92efc1c7232b215eacb17426d1b715cbcff8546698d9e0e5f279e7. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/MXB952100019.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb8e9951d21493204bdac49d14f0cc1a97a8192152bbbabff11bce40eadd81ae3. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/MXB952100016.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeddad25189d63e98bac029f653c92ca44b5b1064a681ee8834a467ee687dfc10. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/MXB952100014.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb9ee899e031bfbf1735eac8337bd2d2e8b7db47b01d3a0eb1b470d57521bcb43. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/MXB952000097.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1b65ec93c0ffe73cc2778d1c69d55e417687c71c99fe42278e87687619d56f2c. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/MXB952000096.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x71579e0782fdc8f82bb66bb3d47a7729d4f9d3d6185f2fe3cb65102ec1305f1d. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/MXB952000094.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xce1bcd861301c3f087e23302ea8a27d1541aefb36b92b0433a31dcbadd86069b. Chain 2 (Bitcoin): anchored in block 954130 (2026-06-17T19:07:14Z), 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/QZHN92099761.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa7427682addb9c945ed23880c71a189684055a4f4b962dec6460419612b9e19b. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/MXB952000084.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x53e3e82b32ad2d0357e8e964382b7708e96692ece11c41ea58228c4763a84a51. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/MXB952000082.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf86ae26325745e43ef3aa4b3a7df1703adcb464b09fcdd845120097a881ed04a. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/MXB952000081.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6cf0f5814514f7cbc7c7fb56ed2fe4748362fec6d7641d392e671ecc615cb966. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/MXB952000080.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6722910021416a34d301a011c8d7716fe247ae79044bca00b891efe494961941. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/MXB952000085.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x34e1efb5e5004ac8febb4185905beee42b5c94a6c86ef59bf7163c9caf266e5f. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/MXB952000083.