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 0x56a7f08f8476ef13d0d26f6e33ec9ed694aac46026e911262a48de036b1440d0. 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/2d89c839-9c00-481b-86ff-a9bf5152ead7.json and https://artists.proofprofile.net/proofs/artist/2d89c839-9c00-481b-86ff-a9bf5152ead7.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 0xae87776b1bd3c914f5b5da8f95a6c4bbd8c35855558e1cf6bb2ac95b576c6209. 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/PEHV10802004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x29f0fdbb337580c456ba44a04202174e717bcd4e56f3436bbec910ff704df6aa. 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/PEHV10802006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x84c7b2172c1410d6772df227d7ec0697908d20d9cb6ed6e5eca093cf1943b4f7. 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/PEHV10802008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3c8807e32227e7b5fdb2c249fb8b04f1ca1fdc580a89c47fcb48c2553b6db268. Chain 2 (Bitcoin): anchored in block 958903 (2026-07-20T15:22:45Z), 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/PEHV10802012.
Mix Sufrimiento: Amargo Amor / El Provinciano / Ven Mi Amor / Dónde Estás Amor
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9d0fbfeb39f1536fdee98a8757afb5906fc01e4341cb7fb4988269f7606e4696. 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/PEHV11515009.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xae87776b1bd3c914f5b5da8f95a6c4bbd8c35855558e1cf6bb2ac95b576c6209. Chain 2 (Bitcoin): anchored in block 958111 (2026-07-15T06:58:20Z), 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/PEHV10802004.
Mix Cochitos: Que No Quede Huella / Cómo Voy a Olvidarte / Remolinos
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3d1b4fe3d5456534a8609aaf368643fbce915371e2269ffea9d67be20d1339a7. 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/PEHV11616003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x00030e674acabbccbec7f229e3b898a368c4b9c55c922b0fc2ab6827b440aa72. Chain 2 (Bitcoin): anchored in block 959069 (2026-07-21T22:32:59Z), 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/PEHV11515010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x63a2d02477ec84796f256ca46bf34386b6fb18dc34c4555fcb2f04adf8d8f471. 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/PEHV11515003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x261a5ff5787a109d3d8a50dbcb83a9612fa728eac6eabf2f30bd0065dfc83ae2. 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/PEHV10802001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x84c7b2172c1410d6772df227d7ec0697908d20d9cb6ed6e5eca093cf1943b4f7. Chain 2 (Bitcoin): anchored in block 959010 (2026-07-21T13:22:35Z), 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/PEHV10802008.
Homenaje a Mallanep: Donde Está el Amor / Una Aventura Más / Me Rio de Ti
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc54575eceb51a81c045b626de5eb591740ebf1dc9282342e380e89eef64a0355. Chain 2 (Bitcoin): anchored in block 958870 (2026-07-20T11:19:23Z), 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/QZNJX2010997.
Vamo a Celebrar, Feliz Navidad y Próspero Año Nuevo
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe48d92613f8f550f719c00257fcff593537fa21c3af6ba927104641a846a940c. 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/QZ5AB2117732.
Mix los Villacorta: Cinco Minutos / Donde Está el Amor / Una Aventura / Tendría Que Llorar / Amor Pirata
Homenaje al Dúo Dinámico: Amor de Verano / Amor Misterioso / Perdóname / Esos Ojitos Negros
Homenaje a Gabino Pampini (Mi Vecina/Cuerpo de Guitarra/5 Pa las 12)- 15 Aniversario
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdb50e88fdcc01a582d28de3b2a7c078aeb8c94b8708bab523d97a95240baa7da. 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/QZNJV2395847.
Mix Yo Quiero Bailar Contigo (A Donde Irás/Yo Quiero Bailar Contigo) - (15 Aniversario)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2b038561ea0e0f63beeb90e50cc0059e7cea8feee2430e3cacd0ae7c3afc4f09. 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/US7VG2439332.
Mix Colombia 2 (Boquita Colorá, Caballo Viejo, Hace un Mes)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc4a6134919e4c2db896e292503d584cc664987213fb1dd3ecce3c72c0cb77194. 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/QZ5AB2435334.
Mix Latin Brothers (Sobre las Olas, Fuma el Barco, el Mar)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf1deae4b12a5c0254594627e587805f6123d43723e051f0ddb2925d9991ce3d9. Chain 2 (Bitcoin): anchored in block 959037 (2026-07-21T16:59:47Z), 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/QZ5AB2435517.
Homenaje a José José (Llora Corazón / He Renunciado a Ti / Desesperado)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfba2d7ff5a9627aecb5e240b375255af40fbb20bd9d8cefdc9dc7a682120a4fe. 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/QZGLM2470537.
Mix Eddy Herrera (Pégame Tu Vicio / Tu Eres Ajena / Como Hago)
Mix Pirata (Lloro / la Carta Final / Nunca Me Digas Adiós / Vete)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2f2e584f7e6dd6bffea42f8a956c36b637784bd746cdbcde5729b7c6a87e97a7. 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/QZNJW2440740.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1aace1cedcad62194e82dd56c57081393f4333fdb9b3e40b51d4dc229093f616. 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/QZNJX2479883.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf75a0ea744be9aff7633759b8e81beefa79e041fed550eb41864624021bc1344. Chain 2 (Bitcoin): anchored in block 958137 (2026-07-15T09:47:57Z), 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/QZNJX2484854.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x34fa765c9c91fae423f242185a96a1c730ac8bbdd51dc068e61cab87c3ac9da1. 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/QZTVM2408779.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe111472e1fbe1ef683808e209cd2bed81064ee0292216a9fa9786b2a26c5e99c. Chain 2 (Bitcoin): anchored in block 960200 (2026-07-30T02:37:10Z), 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/QZNJW2100479.
Mix Salsa (Vuela Muy Alto/ Y Ahora Quien/ Juliana/ Probablemente)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x91a2d59f721909c150298588c03f5d27f6eaa02943f61a07ccdbfc496f33c028. Chain 2 (Bitcoin): anchored in block 960468 (2026-07-31T21:25:57Z), 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/QZTPX2255851.
Mix Chelero 1 (El Triste/ El Solitario/ Entre el Amor y el Odio)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x27e2a335491de3038191d54a2d819668d7782e71fcbecc713b4f783f9aa66b5f. 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/QZTPX2255853.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe4fd6fc46ee2a064d9a685aed102d3f132d9da64e47b4c8f5247792095872a17. 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/QZTPX2255855.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x57bdffc9ec576331c6bbe0c01b0cfe6fae5e7c09c39a31557ccff73db35e178c. 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/QZW9K2337543.