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 0x5e2dde937e9a5ba10644d7e90a66c22bafc9a83add929037e1a1d7ab63b5f362. 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/aeb7a9c5-1bab-4cc9-a4ec-5d0b9e0feac6.json and https://artists.proofprofile.net/proofs/artist/aeb7a9c5-1bab-4cc9-a4ec-5d0b9e0feac6.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Cantándole a Mi Pueblo: 100% Tierra Caliente
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 0x8bf1b8c382483f8d8b9095373482597851cc0d1c5579ec74a656abf55f5d032a. 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/ESA012250573.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4ddee402afd301280ba6d8f77dc416124b9e6ca3e965b60991a5edbe08585aa5. 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/ESA012250574.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdcc8d9231cd5011b7f44924e77bf56933c28b1d57f2c8f047085c12591e3f8a6. 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/ESA012250580.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb6bf5be3ebc27eb63a60a38c62b2c99b1837f9814fbf091a307a7474fc4ff9a3. Chain 2 (Bitcoin): anchored in block 958058 (2026-07-14T20:20:34Z), 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/ESA012255960.
Que lo Sepa el Mundo (Rancheras y Corridos)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x28981364285e96cd9908c3a827f138cc84cb1eff613a55750a76975ae47aa846. 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/ESA012255963.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xead6d4b6f769f6fac06a229e1d9552cbf4b9e15dea19855bbb0113de43acddac. Chain 2 (Bitcoin): anchored in block 959105 (2026-07-22T06:33:30Z), 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/ESA012255973.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1d98f442552ea5f56845047026971f312a69a9de719cbb625ceb38edc399f698. 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/ESA012250470.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4981d7325fabaca4413a80cdeccdc8c4022fc970080068147c8f68caa1ddedec. 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/ESA012250474.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x87421dca9ef7f2588099979c53d76cce229a8368858aba9d7dddc802bd07ab18. 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/USUM50712211.
Nuestra Herencia Mexicana - Corridos y Canciones
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb5b5395a0c918fbcda9fe3c7fdfa06189474bbf84a7200988a567ca186eeab26. Chain 2 (Bitcoin): anchored in block 958756 (2026-07-19T16:12:29Z), 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/USFI20806158.
20 Canciones, Vol. 2 (Versiones Originales, en Norteño, Tropical)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x64ea8b07268691dadd243b60fec828d44df7459fba3d35270e464886b8f0f94c. 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/ESA012280629.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6d210cc4ea5bba2955c33476c1448b4f74508f29e11ed5ef2a2ab9a41449f954. Chain 2 (Bitcoin): anchored in block 958211 (2026-07-15T23:24:33Z), 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/ESA012281097.
Que Lo Sepa el Mundo (Rancheras y Corridos)
Cantandole A Mi Pueblo: 100% Tierra Caliente
Cantandole a Mi Pueblo: 100% Tierra Caliente
20 Canciones, Vol. 4 (Versiones Originales)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3b96e4fde1ca05aa27c1cdb432fb12d35697f03b9fc6f3fc19ebf62aaa014f99. Chain 2 (Bitcoin): anchored in block 958770 (2026-07-19T19:26:13Z), 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/QZDQH1805266.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf1549989941d7bbc6924547c7f2a2469af782f96a6c9071c12ff4207ddca7f29. Chain 2 (Bitcoin): anchored in block 959103 (2026-07-22T05:56:21Z), 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/QZNW72337615.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1263abdf1531e0d601c10282d5962c73667fdbfb816ea061d8b8bc580c8a53e5. Chain 2 (Bitcoin): anchored in block 958867 (2026-07-20T11:08:30Z), 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/QZNW72337586.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x844a73db71cf3211da47c6c2cf34df87517147c4b2c736604f18c7199c261c63. Chain 2 (Bitcoin): anchored in block 958800 (2026-07-20T00:52:19Z), 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/QZNW72337593.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9ab626314d1ebf277f79c6b444a36f665b2018362a846e286c37e0efa844db8d. 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/QZNW72337594.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x452c4814b4308087418c31b4c10ad71eb913ac7457a3b5d11cae35938e3667bf. Chain 2 (Bitcoin): anchored in block 956422 (2026-07-03T01:01:38Z), 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/QZNW72372997.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa50d29e845f946212497cc32e61009edab5b060e9b10bb2d05108d4f2eeb61d7. 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/QZZ972416327.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8ed38f495f74f944fbbb48701cfa18979af512b21c4fd2128e7d80a4517ccd43. Chain 2 (Bitcoin): anchored in block 958805 (2026-07-20T02:22:58Z), 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/QZXLZ2517058.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x430fa73cdc1adcbf9e866c268a67cc9b9a1075d91559d78f2f46e71d595233c5. 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/QZXLZ2529080.
Gustos y Zapateados, Vol. 2 (De Guerrero y Michoacán) [Con las Mejores Bandas]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5edd53215c31d9cfc8ae7a140faab438f7b7b7c80a0b4811754d7fd915c88e5f. 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/FRX201616794.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x59e4f449992c482368c593dbca4f787aa25f9fe2ce081b845b1eea83da0b0e52. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/USDY42115491.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x71a8f1f6a27196ee9a36b9329974b439ccb9308cb86af22e8399e7cf9bbd7ffb. Chain 2 (Bitcoin): anchored in block 960296 (2026-07-30T19:11:09Z), 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/USDY42115498.