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 0x2cf388fd36903468e21aa01953f7c72c8de8cb6ee26c88a8edda4d102d1e67fb. Chain 2 (Bitcoin): anchored in block 953660 (2026-06-14T17:20:01Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/5319658b-3f8d-4595-bea7-4559032079a6.json and https://artists.proofprofile.net/proofs/artist/5319658b-3f8d-4595-bea7-4559032079a6.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 0x43ab04c3a2e81ad4a29ffc8a59d6724e54e1c220e986147d9f1b223e2b0bb18b. Chain 2 (Bitcoin): anchored in block 960334 (2026-07-31T02:19:15Z), 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/QZNWR2102424.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x860de8594f16e2c79e1c6d09a0aa74734741402e3ae3f8aaa8eee8a6cca7b99f. Chain 2 (Bitcoin): anchored in block 960344 (2026-07-31T04:14:58Z), 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/QZNWR2102427.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x08e91c9b7256e342225ecdc3dce1f92cc3002df6801b4338f63236a4d642a08d. 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/QZNWR2102437.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x77ea636a92437fa5d4b364525d57c6b764af772846ffaeb394066961f5b7293f. 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/QZFZ52191719.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x66c3870f3b871bfe0c7c85fec5ad3390668c194cc7d1f1a67ac06de34a1d1941. 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/QZFZ52191720.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3b731a26c866e86228c4e70de0619f6da7726ed15b3b59c953854139d2296782. Chain 2 (Bitcoin): anchored in block 960344 (2026-07-31T04:14:58Z), 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/QZFZ52191721.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe00a6bca167048038d873e4b842163f504ef9730c31b8d661f33b3f0928a27e9. Chain 2 (Bitcoin): anchored in block 960478 (2026-07-31T23:30:38Z), 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/QZFZ52191722.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf89116a00ae52bbd747bbf0c28c40a7d1e45c0effda65b8fbcb63580788264e7. 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/QZFZ52191726.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb5e2e6b810cb6c5e9c67747e12af59c5a90cd730afca8b06cd3c6c86a5be4155. 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/FRX762023051.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7f47441f9bebb8238a9e48ffa8fe91d58b031ef82bed15c4182d51f84928d94a. 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/FRX762023055.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdb3619a967bf930a6783f055ececeb78361d11f843d17fbbb5dc6f4ee572b132. 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/FRX762023061.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x82a9a2798fa3d4bd6c587270a3f5c383174757f4a73e1d61a082bba780d768f8. Chain 2 (Bitcoin): anchored in block 960203 (2026-07-30T03:35:13Z), 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/FRX762023063.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7a132e4d5f743ff2bb8107c0a016e8eb55422c62eddb1131b3aeb1f92c8b57f4. 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/FR10S1981684.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3b376e12ddae07899bd0165f354fc0e913d212e1df0d34a9f61792a1125d9c2b. 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/FR10S1981685.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6a94171a52343831cb4e3dca66cfcc2196773c84f56b785f31369c886040b09e. Chain 2 (Bitcoin): anchored in block 960500 (2026-08-01T03:13:03Z), 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/USDXS2201228.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x727f042feea76fb99e1c46d2948ef0d63f6e864bda30d48e22ab3e881cafd0bb. 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/USDXS2200856.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfbfd36f6856b8ab3acfe3a6bfacfa52645a4bcceaca5887a3595ff42a1097be8. Chain 2 (Bitcoin): anchored in block 960216 (2026-07-30T06:39:12Z), 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/FRX762182845.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6aa3865492e6ca579cee0ded2be868e136f97e50d663ba2a87d0dc2d9a2768d3. Chain 2 (Bitcoin): anchored in block 960209 (2026-07-30T05:15:54Z), 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/SE5752086055.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6b3dbdff9cb61652268dae4a32ab9e96932194f16638cb7d760d59497c768d24. 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/FR59R2062204.
Los Mejores Corridos, Vol. 3 (De Colección)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc9d8fca8f0245c558ae0d9d95bab46205e4b165e6f4b780c52504f2f17d8030a. 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/FR2X41950740.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9de6fb4841add8da4130a4f1b17921a4ee68645d7a2d314e11f249404c65d7ff. 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/FR10S1969188.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x21532337d2123082da8a199cd606f606c4db1683061b61af90da1c45d7f203ba. Chain 2 (Bitcoin): anchored in block 957073 (2026-07-07T18:39:05Z), 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/FR2X41918293.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8dd5da3dfcff5fa84b6a76818a32219d2bace3be51573f5cbbe8abb4b8ef21b6. 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/FR10S1956195.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x708cde127c95802f25d2d1714ac987f1aabf54853c3389642d4f1c11613e7501. Chain 2 (Bitcoin): anchored in block 960229 (2026-07-30T08:30:10Z), 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/FRX201853341.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x46f1aaf9116daad27380ebcb2421888a2013452e026703811f21dbf0cc5b2fa9. 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/DGA082212473.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1559fd02e8ebdbf341ff17c494793d96fbfedc4d40ae534fd3e4fe31d04efece. 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/DGA082212474.
Asi Nomas, Puro Corrido Alv, Vol. 6 (Coronando Éxitos 2021)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x21501ba7b70e0e3b548e22ebf117f67726075448486cac21ec22fb42f188bd6e. Chain 2 (Bitcoin): anchored in block 960264 (2026-07-30T14:36:16Z), 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/CH6541663753.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa8734c013b8be89ac27df796a371f306af2c8b8b03c20b4f235dc62b189c8d9c. 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/CH6542105795.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe3cd2e81adcebad1aa8aa3c128fc20f85e6266c5247aa81139ce34c822d625c3. Chain 2 (Bitcoin): anchored in block 960264 (2026-07-30T14:36:16Z), 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/FR96X2198152.
Pisteando en la Barranca (La Nueva Linea)