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 0xbee5000e9baa33a5fae51f3194551911223ae76129514d1f225daf4dcd070674. Chain 2 (Bitcoin): anchored in block 953750 (2026-06-15T06:12:23Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/a97b0613-6a96-48ab-8b17-31921d7cb3d0.json and https://artists.proofprofile.net/proofs/artist/a97b0613-6a96-48ab-8b17-31921d7cb3d0.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
El Nido Vacío (Banda de Sonido Original)
La suerte en tus manos (Banda de Sonido Original)
El Misterio de la Felicidad (Banda de Sonido Original)
Madrid Solo (Melodia Bass) [feat. Javier Malosetti]
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 0x48dc070a00983bf7101add4a1514d41e27f92ab34b5673e14ba6ec3ef561a743. Chain 2 (Bitcoin): anchored in block 958907 (2026-07-20T18:42:53Z), 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/TCACJ1548573.
Truman Vals (Free Bird) [feat. Javier Malosetti]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x26262aee4acd66de6d1132f7f5cb0b195b7f63d39aaf69f944cf9db480caf178. Chain 2 (Bitcoin): anchored in block 958212 (2026-07-15T23:25:50Z), 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/TCACJ1548576.
Truman Vals (Version Uno) [feat. Javier Malosetti]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x556789d69b2932fc19efd16d39fb633a570c9ad147833c1384227e962e986ce2. 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/TCACJ1548577.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3b19e4950e11a2817096b80c7b8f0b4ce3f55d8d156adf7272d4ed8ba365b1ae. Chain 2 (Bitcoin): anchored in block 956351 (2026-07-02T11:38:34Z), 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/ARC571000018.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbc7df17e1d48cc36b7e967f533ff33f896757db512f64804180391b39e7c3ed6. 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/ARC571000019.