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 0x34b272acb09f8479b2300ccf43e5a233664d99396936bbd98598029fae8aa587. Chain 2 (Bitcoin): anchored in block 954066 (2026-06-17T08:11:48Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/71473876-e51c-4035-b9fa-b623818f9293.json and https://artists.proofprofile.net/proofs/artist/71473876-e51c-4035-b9fa-b623818f9293.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Eres El Mismo (feat. Rodrigo Montenegro)
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 0xef7cc955f12a8d97d1477c3ae894eacc2f22787b3e56316fe7c7d5f0ebcaa657. 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/TCACT1625966.
Todo Lo Que Tengo (feat. David Bustamante)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x79b157bb3a7ddf78d4913dde70c53a63a8eff3a6a26888cc6b63e56f3039620a. 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/TCACT1626021.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfef68a41ed45bea60c9d03efba18f86014f3501444248396f23bcf6572e17129. Chain 2 (Bitcoin): anchored in block 960321 (2026-07-30T22:27:30Z), 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/TCACT1626024.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1b739b322aa4ab301369447562b7bb10438de601ba937fa84ad21d363fe0348c. Chain 2 (Bitcoin): anchored in block 960193 (2026-07-30T02:05:19Z), 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/TCACT1626029.
Tu Reino Es Eterno (feat. Rodrigo Montenegro)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x93451567df9b4b1353ab94c76c97494ca9f5676eb7d414e986a0a9e67994ee32. Chain 2 (Bitcoin): anchored in block 957046 (2026-07-07T14:04:01Z), 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/TCACT1626030.
Creas Vida (feat. Esteban Chino Jimenez)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x133363d4ef4b9d9af28d31fdc016d3c4f7ec0922d145f2b28d2b43031a46c5bc. 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/TCACT1626032.
Hijo Muy Amado (feat. Geancarlo Calderon)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x631baa137517df2373c6008fb73755b9be85971bf7bc8f181a69e3d810e8751c. Chain 2 (Bitcoin): anchored in block 960199 (2026-07-30T02:30:29Z), 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/TCACT1626037.