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 0x0921bab04c6f324a585c720fd78fc2abd432ce54f01055d3f39f29e643830586. 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/a9cf52b2-61da-4694-96e3-d4c1ed505af5.json and https://artists.proofprofile.net/proofs/artist/a9cf52b2-61da-4694-96e3-d4c1ed505af5.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Algo Bien (Y Llegaron los Que mandan...)
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 0x7201bcb7ae903bfb4c3f3d5f434386fbb9845733c683aa7208f5ebaccf798e30. 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/FR96X1899021.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd5ff57952da31e50a041e68b9d7aa0f16be18d598eda6f33399715fde91aa583. 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/FRX281964891.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfd747585db4f5045fcb601a23d9539dc607a2c2761aee14953ab20aa49a2890b. 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/FRX281964896.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1ff312c8935e8b43550dfc1aba64f4f7b67794df03d514c4bb485a082acb2296. 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/FRX281964898.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8c375764335d4299cc832e73ae7385a0e98565ec3e2ce91635e06fb24ff41155. 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/MXB711600823.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeb0179c06f4f4831406c20944e67b561997f6b2ee5b4d462beba404d3357911a. 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/MXB711600860.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7db13bb14bad7805d5f3cc68a1ec353af0e8f58fbb9330bb8ceb4eba391e509c. 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/MXB711600747.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x393e7de1e78640b51c8596cbe13c599f736c1f89952940191251dc2fa6566535. 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/MXB711600861.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x02fbf5859e9278e1c7577284786be24390b032c704e2f3356db265964b47f9d1. 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/MXB711600838.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdbfa7e88f7b41a45c012fa0be0f160bb0af004c80c14aed448ff323b6d4a9637. 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/MXB711600863.
Entre Copa y Copa (feat. Banda Tierra Sagrada)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x28eeea2815055dec0b010ac5cdcda093194a067a7ecb0cb37c6ad486d180a343. 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/MXB711600867.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe8d641ed1528b86e7ed0ca94a054a38d0aa02c3b00a03d556fb41e19f93c39d5. 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/MXB711600869.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x89f926cc2286c6e166b15cb0e4eed73a44a65827cde4d78700605c4eabc71c0f. 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/QZ5AB2077715.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe2fad9468d9806158b5a6ba7b990d5d8ef9ae763f01d08425fdeee203dace066. 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/USASN1401255.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc7cfa61cffd532ced1a26fdc591e9b7d35031661ba3757e4d60a44969ab7bfce. 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/USASN1401256.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0ad69c065b537aca66a2833fa1fcc70137681c64c45cc81799c82819a78e0c09. 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/USASN1401257.
Se Les Peló Baltazar (feat. Leandro Ríos)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeea56d6a6f770d2f886f41b784188c266a6769009160bb279b89885e4fa98927. 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/USASN1401261.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf2ec11a5372672dbb6e9fe6c370a62eb25a00d444f89dffc6cd95b9a450802aa. 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/USASN1401262.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x99bad5d9ea4c2935f12e82ca0f281646f37c30fc90f126381eba853cb7c84a0c. 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/USASN1401266.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9ac1a1482f997cd6289d39604aa82a0da6987592e9eab326ac4614cc62b52ff4. 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/MXD782302518.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x04559b9c3b93daeffdd50a56ebfb20f00f98c7e51f28bfe737bc5a70eec4b8d0. 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/MXD782300369.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x66da9b6b8acbb80ad9ac95169d16963a3861bdabbe08db180bb1c59b963c11ac. 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/MXD782204319.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x475e360335e6e34bcb66283a3b687e1ea2efee66c21b0189d6c35a7615a9c125. 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/MXD782204196.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7201bcb7ae903bfb4c3f3d5f434386fbb9845733c683aa7208f5ebaccf798e30. 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/FR96X1899021.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5516c1cf6d1be3643cc0529dd75bf3db60e6aaa5107850d598d65a2965422d9b. Chain 2 (Bitcoin): anchored in block 956861 (2026-07-06T01:57:57Z), 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/MXB711701180.
El Pervertido (feat. La Super Corona de Rafa Becerra)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xba441fa048b602cee967a68a3362eadbe8354077a410d686f0a0b46285e5ab57. 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/MXB711600670.