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 0x095133ca9b063bdba0aa8f30ba6667a401f74b1010277872418a3e5f8de61aab. 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/6a0b564c-88fe-42f4-acf3-bf117f6c00ea.json and https://artists.proofprofile.net/proofs/artist/6a0b564c-88fe-42f4-acf3-bf117f6c00ea.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 0x4dcc32f14ce9c69b0347a6fda85dcd0d0dc37e791cfb7be9a8ca966e9a673b9f. Chain 2 (Bitcoin): anchored in block 958761 (2026-07-19T17:49:48Z), 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/MXUM72101613.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3d85b52e5c57383a40a7a503cade4dbf280723b61de8bc86e8e9b13cf2db6a7c. Chain 2 (Bitcoin): anchored in block 958388 (2026-07-17T09:14:21Z), 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/MXUM72007352.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7e9921fdd9fdef49b43315a1e93bc8b24f64356753aca9874d0585f447660819. 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/MXUM72007353.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x90abda3343efb1f53c780c730b6d6b79300836924854b2425c632747b4205428. Chain 2 (Bitcoin): anchored in block 958682 (2026-07-19T06:17:12Z), 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/MXUM72007355.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x206dacd5c4a028150f4bf5bdc99a38250dc0727ca64c548ab42f79b6eeb858a3. Chain 2 (Bitcoin): anchored in block 958942 (2026-07-21T00:24:07Z), 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/MXUM72007357.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x01a18226a27fb77db62fe912a71e5886115f6c8403d34eadde910a54cc191d7f. 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/MXUM72007361.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaf33913e559314ed03ef2bccffa1bcb5e877f3f406bf4049dddcb3a27d5226a7. Chain 2 (Bitcoin): anchored in block 959061 (2026-07-21T21:34:21Z), 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/MXUM72007362.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x81b0427e3591f0106c71533e90faeec781743fd01e3d227f3d2355c6673bd91a. 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/CACWV1965398.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x24d675fe006bba14464f150f9cb5136d4331ccd867c28fa23b3b19f4a52ac415. 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/MXUM72007084.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5b80dc4cba473a4b2be4f59183338723fa66a551df757a7e4d7cbc9443152526. Chain 2 (Bitcoin): anchored in block 958931 (2026-07-20T21:15:01Z), 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/MXUM72007100.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x456c2e89cd2b6fa512f44aaa56b0efc7d8dd65c7b164fe3b4e654be74aa70920. 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/CAENV1931752.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x23c4529e77e9ce7380cec58de4110c969eaefe4670030f84906392c473473856. Chain 2 (Bitcoin): anchored in block 958924 (2026-07-20T18:54:07Z), 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/CAGOO2144798.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3e0269694a217585c424d062403c96c1fbf6cf0feccfd72c2d79eb1ba5beae00. Chain 2 (Bitcoin): anchored in block 959031 (2026-07-21T16:15:11Z), 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/CAENV2230047.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x558caa1ba55ad69028f7ff47d979bd4daff08151112ecf0a5bd0dbaf94af427e. Chain 2 (Bitcoin): anchored in block 957603 (2026-07-11T20:26:17Z), 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/CAENV2270433.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd087719bd272d0d6aa758fbf591986ec13969f2e80a9cac147c4f44c102ef18a. Chain 2 (Bitcoin): anchored in block 958931 (2026-07-20T21:15:01Z), 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/CAHQJ2359803.
Siguele con La Revancha - Álbum Tu en MI
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x05f1d41dbd0ae76357dc6c660e345fc5cd8f91090008de59fb5c5fba64c776e1. Chain 2 (Bitcoin): anchored in block 958918 (2026-07-20T17:58:04Z), 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/CAGOO2337727.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0aa627d3aaddb1b6b4765c7a4935f3291be4df38210923f3913abbd7af3269be. 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/CAGOO2337728.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x46e4d8f7dd34d096851c61678a059d726fcfad2bee9bab86573f72e977c7e6a7. 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/CACWV2416438.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x43d7180ea1ae0301514d4ea7dc0257c06b752ca23759fc41d8799d7a3a98f5e6. 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/CAENV2450262.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa69dc43c468206b55f6b60ec44dfab2892a6978c3d98cba5331f93119b89f2bd. 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/CAGOO2468753.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7ddfa97174f88dc4e96f0ef4c5aeb68f41dda564ff662947df09c35a728d37cd. Chain 2 (Bitcoin): anchored in block 959087 (2026-07-22T02:05:55Z), 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/CALVP2400778.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2c764cb901ec5414443ad6a4e7e33ca0840a1b08121bbd0a4dfd15ef8aaf5ad0. 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/CACWV2479392.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa69dc43c468206b55f6b60ec44dfab2892a6978c3d98cba5331f93119b89f2bd. Chain 2 (Bitcoin): anchored in block 958373 (2026-07-17T06:09:33Z), 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/CAGOO2468753.
Grandes Éxitos La Revancha Recordaras Que Te Amo
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbc2509ce9702904e924371bec791bd4a8dce5a93e340cec10c1d0f3415e9fb42. Chain 2 (Bitcoin): anchored in block 958931 (2026-07-20T21:15:01Z), 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/CAGOO1884516.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xec31757d9c0d8129ffcaa51bb9bd93a184d648298ca7bdc5b411f39d358d3c30. 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/CAGOO2064842.
Recordarás que te amo - Éxitos Sudamérica
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3e2a6d9175a1459d3435a7799e7f2bbf5003bf0c29da485618c28d5b26694797. Chain 2 (Bitcoin): anchored in block 958256 (2026-07-16T07:22:18Z), 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/CALVP2555934.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4b59e35f22d10e9b759741145753a1d91a8de26260ab7cea25ac210546e82e2e. Chain 2 (Bitcoin): anchored in block 958203 (2026-07-15T21:24:46Z), 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/CALVP2555931.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc1d3546378779732c4e78721b04c389cf670833648a5d92441a04e947a90c9c2. Chain 2 (Bitcoin): anchored in block 958194 (2026-07-15T20:32:27Z), 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/CALVP2555932.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x953b6dfcba4bd8e05f61d49670faccdd7d6e14166614bb2fa3e643ed196bd8a8. Chain 2 (Bitcoin): anchored in block 959128 (2026-07-22T12:33:25Z), 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/CAENV2140929.