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 0x0f4d25475e54edfddd925457c1fee45a045ecedc2cfd772fecadffec09a569e6. Chain 2 (Bitcoin): anchored in block 953423 (2026-06-12T21:20:00Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/ebb2ec2b-0ae6-4c4f-82a2-5295e7464520.json and https://artists.proofprofile.net/proofs/artist/ebb2ec2b-0ae6-4c4f-82a2-5295e7464520.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
TsitsiKi Sapichu: Música Purepecha (Abajeños / Pirékuas / Sones)
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 0xe74ea43c1a2ad139bc4e7598b9022f541735f69bf55529003505cfce767eca18. 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/FR2X41453369.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xec87f88617c9827eb457d36c60aec3b315c329751c512e392358bfc483f8b8d6. Chain 2 (Bitcoin): anchored in block 958368 (2026-07-17T07:55:52Z), 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/FR2X41453370.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa3564b7ebb370d1ed8298253bfe59d354f9571b6ef5171bb2f7422080f7e2aaf. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), 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/FR2X41453373.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3d3e5bca54d4e55c029f82fa7114e0ce74be91be2eeabcbabbb185d6ebb3d598. 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/FR2X41453375.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb7083856a71e5b7fb23288b45d64039bd12f30cd2bdb2e0e5fba52841ea9b6f1. Chain 2 (Bitcoin): anchored in block 956639 (2026-07-04T11:19:20Z), 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/FR2X41453378.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x19fdaa6e5e5a358b2de61588dd6b8acc83695330fa153ee4b4375e6e2bfb88a2. 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/FR2X41453379.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x81ec2546f22c980445b07587a849a2598710871e7b5e56edf92e9240c2e3d78c. Chain 2 (Bitcoin): anchored in block 958194 (2026-07-15T22:40:23Z), 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/FR2X41453380.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x892a40f006f8e1be4d59e6a452beba817551829c62224653dadbeee63dc9621a. 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/FR2X41453381.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x51061511626539ae357757cca3e55aac2fc1c24bb7445173baa0d4c1008dceee. 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/FR2X41453382.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x354a4d5930a8b749f5d3714dcbea336c0d82b39cc5feafc744f2d41262a038d6. 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/FR2X41453383.
JósKua (Musica Purepecha / Abajeños / Pirekuas / Sones)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7cdc529cf6d7c9aa8350ccb996ea1cf157694a17e33987e5e1a7a860a2163de0. Chain 2 (Bitcoin): anchored in block 958468 (2026-07-18T00:27:51Z), 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/FRX871586687.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x58eb53b9efd21439908314cd558969416250a6f25830000f22bfccdc70d33c84. Chain 2 (Bitcoin): anchored in block 956748 (2026-07-05T05:55:59Z), 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/FRX871586688.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x40230c6c2269bb899d9210d7f0052e56cb84dce942eeb647adc6d7266e4183d3. 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/FRX871586689.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4f5550fa835186c7f7e27deebd0fbe7fa1eb5da871ebd5535868b76792bfc966. Chain 2 (Bitcoin): anchored in block 958631 (2026-07-19T00:50:09Z), 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/FRX871586690.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x281030906c6a34c9a56a55acc866e62846a04c30f73b45c6345c414043c681ef. 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/FRX871586691.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0d90ac6a4babb16df256383826e676e49a5e7fb77673a346712dd39735c87fa2. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), 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/FRX871586692.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc9808aaff404f92d05fe4c619fa31dcbd55e4edd5fb1759c272478b88c50502c. 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/FRX871586693.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xef3fc2430f85c3138f8eeb1d386bf64af4a20c46e950a95c91b11e67198246b2. Chain 2 (Bitcoin): anchored in block 959128 (2026-07-22T15:09:05Z), 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/FRX871586694.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x178701a620167cce56e560850d18eb64d8446d545eed30f72687821aa72ff322. Chain 2 (Bitcoin): anchored in block 958544 (2026-07-18T12:14:37Z), 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/FRX871586695.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf9c6210266ac1f995cfb392f443dfb11f987f7d42e0b509d36758d3320ae36c4. Chain 2 (Bitcoin): anchored in block 956742 (2026-07-05T05:07:15Z), 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/FRX871586696.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf8f40345d4541d46c8cdc0314268c408ec84ef8739f2c850684a340ab106cc9e. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), 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/FRX871586697.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8efc588359d2f1c1da2f0f320ecf409df0f43cbf28ec0c0169b5bc3d06111175. 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/FRX871586698.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa54d73ff78412d03c200bd3367a3bb6d9172fa0888fdf3012b5e2248c792f6df. Chain 2 (Bitcoin): anchored in block 958783 (2026-07-19T21:20:45Z), 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/FR59R1766558.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xed0e2e5eb644214deeb7fd2f40258e1cda9b625b23ba9bffac00a690edc07df0. 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/FR59R1766559.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa71d29296a4271db70d507430ea8388087bfcd568889e16eb2989b67f31d0f9c. Chain 2 (Bitcoin): anchored in block 956862 (2026-07-06T02:10:22Z), 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/FR59R1766560.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd61500f749a0607a32e41af63fa059b3ba2c88e54d3d6d181462c7f112b26f38. 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/FR59R1766561.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9870813fc51366c2b3709a67a6b82070b31723c27519e37194560001c2964b5f. 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/FR59R1766562.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf424cb59b06ef514f4786531d6d989c6d06219c1ded959b11d88ea83fc1fa15e. Chain 2 (Bitcoin): anchored in block 956639 (2026-07-04T11:19:20Z), 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/FR59R1766563.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6077ee37261b5ff33e65ba888c1048cb0b8177204262192b2adb37f2ea45e356. Chain 2 (Bitcoin): anchored in block 956857 (2026-07-06T01:26:17Z), 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/FR59R1766564.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb259e4f81969df58928428927207cc7469e70a8b053e74ca62d8774086cc0a92. Chain 2 (Bitcoin): anchored in block 958428 (2026-07-17T15:15:14Z), 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/FR59R1766565.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc6a52e5d823dcdfa95e0a0ba484313631987f8512648544f6cbdb948d71a86d6. Chain 2 (Bitcoin): anchored in block 958444 (2026-07-17T19:12:23Z), 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/FR59R1766567.