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
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x40b4edcb78b3b4acb35e3e8b83040edd926c0a28376e9e1429eb3aafd23ffcee. Chain 2 (Bitcoin): anchored in block 953770 (2026-06-15T09:50:11Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/ae42f1c8-ef46-4505-aedd-5cb85ba084bd.json and https://artists.proofprofile.net/proofs/artist/ae42f1c8-ef46-4505-aedd-5cb85ba084bd.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
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3f65805a0a731c7027f2d9b873faccef4055b98c142e4742868f1a31962a7055. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/USCGJ1843034.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc2f98d6493beb4d07417b445756c9b1c0dd04107e5e9902e656d0fe5f327ce53. Chain 2 (Bitcoin): anchored in block 960105 (2026-07-29T12:35:17Z), 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/USCGJ1843036.
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
Hoy Toco Gozar (El Champion) [En Vivo] [feat. Banda la Conquista]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa1a20afbe67424cb7a8ca5e771400dcf265b8dc8fc0e21c934e7545668e74ead. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/USHM21661986.
El Rey del Polvo (En Vivo) [feat. Banda la Conquista]
Entre Rifles y Costales (feat. Banda la Conquista)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa03bc86ff87df88a382481f226346bbadf015d3c2200c93be4943050f9b71161. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/QMDA71549491.
La Suerte del Leon (feat. Banda la Conquista)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x66102e5e2a0b0060e3418d57d2679de619fcaf2747e64b152be44ace0f3a440a. 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/QMDA71549492.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x16b0671db91606c8d2154959089e5273509675e2200cb1cce3d438e454675e31. 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/QMDA71549493.
Cuando Nino (feat. Lenin Ramirez - Banda
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8925c10a445282b201bb1ee96a162259e3eea87fdd9be672c1c636d7a62e8abc. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/QMDA71549495.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x432c4d570897984b7f01f37728a02e91bc372eb8bacdd73231cc32764072ef63. 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/QMDA71549496.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2635fc4505e7d82c9c71009e134585290c6e06dbcb7a7d55ea30a05c6d9e5abe. Chain 2 (Bitcoin): anchored in block 957043 (2026-07-07T13:52:39Z), 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/QMDA71549499.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa2761fc5903a685921bc2387f10db22a987cbceaafac7a363bc6ac92938bb214. 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/QMDA71549500.
Cuando Nino (feat. Los Varones de Culiacan)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0dfe0511c63c607c88cd5454ffa923cee6c62ba9015d3a0430674a85c5c2c08f. Chain 2 (Bitcoin): anchored in block 956891 (2026-07-06T07:16:32Z), 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/QMDA71549501.
Todo Se Paga en la Vida (feat. Chuy Lopez y Plebes de Arranque)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb37bf619aa4b28854a69e7c59c74731cb11921d05e5165d961b532ac43fd5d8c. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/QMDA71549503.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2df44b1d1832bf5f3a13238adf1e06b87910033dfa18154e8b34ddc7fc742a54. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/TCAER2093704.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xff1adf5ad686f1100936151d8282355bae90760db67966551776ccfabe10ea5b. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/QZGLS1915357.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd3e006fb7fbfdcb45ec354adfcd1cf2379daa32823ab509902f77468ed4ea037. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/QZGLS1915358.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x50817287e078ab58d0a264375bbab30dcf9048bc15d62153681ca143ea0f8ea8. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/QM4TX1693964.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5aa15ea1673258843c43d62d1e984d42b5fa9b78a8e73631a88aadcf9dbea80c. Chain 2 (Bitcoin): anchored in block 960207 (2026-07-30T04:47:22Z), 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/QM4TX1693968.
A.D. Records En Vivo Desde Culiacán, Sinaloa (Primera Edición)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfd8bd766f6f093030a625f30bdc8fce85d52200b13069c0ccb9734fd991a237a. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/USHM21818422.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x15f693f787c9d36931cb9b75c73a1928272af017c325fe63dc1a8eaaebfb8667. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/USHM21818423.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf1aa002819122d610390b213fa894d1b9ef4138c5e32d7ab52e63a1af82ecdca. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/USHM21818424.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8b2d7cb152fa15bd02ed8f79c197fcda2441343f74e05e81eaf263b0668e989f. Chain 2 (Bitcoin): anchored in block 956894 (2026-07-06T07:53:57Z), 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/USHM21818425.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x03d8036bf0e8f9c216db3deda7f2f2d5aead883319ad2b1f67082441a6a50436. 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/USHM21818426.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2a3d1768cc1663f48a1760fb11245908b498e3ef61c44db65ce6d20c5f1172a7. 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/USHM21818427.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x746aa90cb2848ece864c298632c7459f254e0de034436057131c118a75f6f926. 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/USHM21818428.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa455fd235af5bda122a0c65f09cbeefca8f7d6b02ba7a631d15bd94d5c76a632. 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/USHM21818429.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7e30a45b264451c177811595ffca83ee3a4f78763c6794378c6ef2d9d696fdfc. Chain 2 (Bitcoin): anchored in block 957052 (2026-07-07T14:50:41Z), 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/USHM21818431.