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 0x21845f7e1f3f755cd666ad530f6cc14415d86e3e39a1b0120b195ece200c1189. 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/f152d24c-db76-4406-884c-8d6658413c17.json and https://artists.proofprofile.net/proofs/artist/f152d24c-db76-4406-884c-8d6658413c17.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
La Incondicional / Entregate / Tengo Todo Excepto a Ti
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 0xe18e35a4fa07ad26eea9d8a886ee8873ba6b85669b51513ca2e8284121ead3e3. Chain 2 (Bitcoin): anchored in block 958163 (2026-07-15T14:38:07Z), 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/QZHZ32008071.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3baf4dc6226208644594a1f2a03a97bb96e5321d8e44af0c72aaaaffdc6dd625. Chain 2 (Bitcoin): anchored in block 959058 (2026-07-21T21:09:36Z), 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/QZHZ52035752.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x446f68b13ec2a8dc1f3e348c57b24a8388d00b4cf94f3586dc0b39dbabbaf659. 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/QZHZ52035756.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc2167347dee83b3c7706dc01b571b38679d144f6d016cdfd956ba92c67d499ea. Chain 2 (Bitcoin): anchored in block 958876 (2026-07-20T12:15:48Z), 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/QZHZ52035758.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x35c8ddb4b8e11e1feb7ad9d8a6eba66c97c9c6f5b35f163d3f2d4757ed213181. 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/QZHZ52035760.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x193378c1e66ed20c8b99b699cb541d496834177d83c6c9db5bdf6af893ef5214. Chain 2 (Bitcoin): anchored in block 958977 (2026-07-21T06:27:23Z), 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/QZNJV2035881.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd9e18a0e17000621d50d6de76e4b862f5d2b87bff8ad47974754792e5f37cec7. 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/QZNJW2090930.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x719b02d4cca71a675ae4c67597038b63c7ae152a623e5a37a0fa6223ee00dcdf. Chain 2 (Bitcoin): anchored in block 958316 (2026-07-16T19:42:29Z), 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/QZHZ52118217.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x14e3b0ef257763f5b211fd861eb226e0170cede7fcc637b1f3e965912ea1a40f. Chain 2 (Bitcoin): anchored in block 958286 (2026-07-16T12:43:37Z), 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/QZMZ92113070.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8071370ee328f665d2dd528af74378684d6fefe33201a39a5c9f1386e7875b69. Chain 2 (Bitcoin): anchored in block 958825 (2026-07-20T04:55:29Z), 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/QZNJV2189151.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x479c81e2355a4ef1cc33108d43c61d6c5834d2cb779b0756657202e9fa653e9a. Chain 2 (Bitcoin): anchored in block 958316 (2026-07-16T19:42:29Z), 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/QZGLM2279843.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xded8c4fc88bb002441c465259927155d5011f6b4b8e1f8e6905b46518b5741d9. Chain 2 (Bitcoin): anchored in block 959051 (2026-07-21T19:48:03Z), 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/QZW9M2227856.
Mix Calientitas: Junto a Tu Corazón / Dulcemente Bella / Marejada
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd43c1dd9519ecfd089ce7f00251b81241ec0b1b8215432ca394665e4c52b09fa. Chain 2 (Bitcoin): anchored in block 958357 (2026-07-17T03:33:42Z), 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/QZNJV2331244.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x79c94061192dbb46d8e7bd2f983b0db1917f8c78cd1bb9d3f1e5983e041fb1fe. Chain 2 (Bitcoin): anchored in block 958455 (2026-07-17T21:28:36Z), 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/QZGLS2439090.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x738e94975d6bcc68ee37208c5600cefe84988673020217ff7cfdce87484a1717. Chain 2 (Bitcoin): anchored in block 958951 (2026-07-21T02:01:41Z), 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/QZGLS2439095.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x87310c05f5d7b2e2adf384ce2ab8b5d4165bf97c59aa0a18365101425af3a35e. 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/QZNJZ2496424.
Mix Cristian Castro: Nunca Voy a Olvidarte / Si me ves llorar por ti / Vuelveme a querer / No Podrás
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x03c9e66c90f572b6451ced534c8c43c10b8d465fe5f849594c5759b97f342a9c. 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/US7VG2591310.
Mix Presumida: Escucha Mi Voz / Presumida / Cariñito / Campesina