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 0x1b245e5921b7f078e7660e07754dfd83ac57ef3aa9765adc75963a7005ca2bd0. 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/2e83b438-f8c8-4b6e-8905-778ce91b0a7e.json and https://artists.proofprofile.net/proofs/artist/2e83b438-f8c8-4b6e-8905-778ce91b0a7e.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 0x55abdbbf4b08688ce90ffa2284b0aaa3a1db03ced611c853e6afdae5f99a3800. 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/CA5KR1716966.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x68b569230e4debeda112f1a777d28612679448c243c296c8731b347513c31b17. Chain 2 (Bitcoin): anchored in block 958276 (2026-07-16T12:35:04Z), 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/CA5KR1716972.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x671599b6cd9cf115691de577495c12168921f0452029109d6f2b8c172de68c75. 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/CA5KR1716973.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeba3600da70dc384b3a636b24efde58201fd17699e65ff906aeb6b028e25b36d. Chain 2 (Bitcoin): anchored in block 958316 (2026-07-17T02:06:51Z), 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/CA5KR1716976.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4bc9beca665417f8d4e8bb680c0467a757d880a29a251bb99362bfd3064b0922. 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/CA5KR1924350.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc992c53560bc17c343e77db6c4901c379e4c2759754f1dd230472b2640389b3a. Chain 2 (Bitcoin): anchored in block 957899 (2026-07-13T19:36:39Z), 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/CA5KR1924351.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x39f71a4c3207e984f3163fd3e70708b12319dd7847f4a89e7d4b2ef3c85eab45. Chain 2 (Bitcoin): anchored in block 958756 (2026-07-19T18:54:23Z), 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/CA5KR1924353.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x393fadb1c5b482c425150d132254ca2fd9ac1846508887c897faf8fb74640b4c. 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/CA5KR1924357.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x00b5be012a5d43c620ac6010cad8345674deb952f92b538b33b83f2dad3da331. Chain 2 (Bitcoin): anchored in block 958245 (2026-07-16T07:03:37Z), 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/CA5KR1924359.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x04371f9aad5529385b0602d809b68af743a4a94c25e9da26376cde4bebc40e56. Chain 2 (Bitcoin): anchored in block 958857 (2026-07-20T12:15:56Z), 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/CA5KR1924361.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf00906200ee2b8f1625e07c85effa4d57e1cb20a0bca2c34b2095c8a8940fba5. Chain 2 (Bitcoin): anchored in block 958650 (2026-07-19T03:36:41Z), 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/CA5KR1924365.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8bdbbe1daaf385e4c24f2f2ccfb26dfa9aeac78c30e05ca854a4444a3b663fa7. Chain 2 (Bitcoin): anchored in block 956576 (2026-07-04T02:06:47Z), 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/CA5KR2040767.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x223a2d168dd1c564f224099bfe5d55cf9643091f36c114ce0f3f531cd0142db9. Chain 2 (Bitcoin): anchored in block 958238 (2026-07-16T07:09:49Z), 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/CA5KR2040768.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x212f45a23dea7b15381c5d4a1e429383fabe63737b801c1f99266a6ad38aab5b. 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/CA5KR2219706.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe6e7836115421726ace5f1cf01747fffa3a294a78527ce7eeda5b28abda0431b. 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/CA5KR2219710.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x678c6146ba15f91024fea5b3f117f0d0025af32407fab7754d58790ddf70f351. Chain 2 (Bitcoin): anchored in block 958658 (2026-07-19T04:09:09Z), 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/CA5KR2219711.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x34faf5dbe3abb2c2ad25a9ec1f65a59db577e0f2d5e0fd70a6282126218f15a8. Chain 2 (Bitcoin): anchored in block 956484 (2026-07-03T10:47:44Z), 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/CA5KR2219718.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6561c0fd4b4c802b27f514e6a7c43a0103e4720b2a5543c63873e214b11be0a5. Chain 2 (Bitcoin): anchored in block 956440 (2026-07-03T04:03:57Z), 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/CA5KR2224025.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3da9a9169f3d4c8a88302b6461e957d6b5dcac0638697c8dc4907af4bd87cb35. 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/CA5KR2224026.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xafb5ac7e6f99897e0b57456a428b6418b557663325771ca7871518577accb502. 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/CA5KR2224028.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x18ced152f08d65bf4fab029668d75c2cd555ef3a055130608b755924364020c8. Chain 2 (Bitcoin): anchored in block 958448 (2026-07-17T19:49:21Z), 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/CA5KR2224031.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5a18b2a1a272b5014acb25a093d2edfa4f4a55337395022a7f9e7f6c46a26b91. 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/CA5KR2224032.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1662e930346bc6201d28540aaa3d4ffca53f8871ca3f6bf187b7b8e1d33389cf. Chain 2 (Bitcoin): anchored in block 956822 (2026-07-05T18:48:28Z), 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/CA5KR2224053.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x832317795e7675dd7560ff2cd3f6cb12f71d0311de9bfd2cb9fdaeae5d2369e5. Chain 2 (Bitcoin): anchored in block 958650 (2026-07-19T03:36:41Z), 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/CA5KR2224063.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6f007cb4c5e66af0d68d3f03d8f25e5aefe313d0d852ba8bc12baf65ea217101. Chain 2 (Bitcoin): anchored in block 958690 (2026-07-19T07:14:39Z), 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/CA5KR2256692.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd40fb23be87a315ae39c7204e14e503147d159da6423807047f4cf586237470b. Chain 2 (Bitcoin): anchored in block 957891 (2026-07-13T18:21:04Z), 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/CA5KR2298809.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3c4ec6340181e4f528a4f13a4d57426450c675f3cabcccc6382b7815f60c23e8. 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/CA5KR2298821.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6a336c79003f78318ec347bc5bf64f6f481d81c8af15ac98ad638c924741ce9c. Chain 2 (Bitcoin): anchored in block 958761 (2026-07-19T19:04:42Z), 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/CA5KR2307176.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0535db792db467145de1d261bb33d0bdd1a9314cdad97c403620c64b7491727b. Chain 2 (Bitcoin): anchored in block 958783 (2026-07-19T23:39:42Z), 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/CA5KR2309215.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc91949eb1d3b1775fc457af4d373d8d1d1cd74fc879644ed3de733cf352d1e31. 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/CA5KR2314770.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2d88b6a0872b39a7232104115cffa8fe39e15beff34d70fc59c8314d0593a795. 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/CA5KR2314772.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x82d1a12a53f6027f921d3ce6f5af504aa8b286df95077ce423e6bcc1636a088b. 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/CA5KR2314777.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa9c03040370c8f1d6feca10353423621706383864d1d0bec97090ae6351bf085. 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/CA5KR2314778.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd70bd74707327a363c0226856185a51bcd1c8b1dd9cbf6708c5152a2ab3906fe. 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/CA5KR2327070.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8e6e969a602338fce672ccaeed4a11b10c30f1eb2a11c2e9c28d56a6a4c21bc7. 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/CA5KR2327373.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe09b8ed63cef189a6aa3b2eaa656393c048743851c244a0d6a6c2b057403f43c. 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/CA5KR2359697.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2802586fb493767965d6f1259be55b04a579ef619e4c7138f36d040830713c2c. 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/CA5KR2359700.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd5db034d6cd8e00e0ebf0935583e9b234a786b78d5ed40fa0ca2e2890db9ac4b. Chain 2 (Bitcoin): anchored in block 957898 (2026-07-13T19:28:48Z), 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/CA5KR2359709.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf0e5c1d9989f958d1778eabce13748b2ae399d5cbddf8faf1f4820569f056d63. 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/CA5KR2403495.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf97bc0acc9ce5b5be8991463084f061bf730c46f2f50f566dc438b95bc6c5227. 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/CA5KR2412085.
Musica Para Iglesias Instrumental Vol. 1
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdf855dc75a1d6d8d9802679d095568cf9b71fef04dfafc9fadc4da3915117635. 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/DGA062568728.