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 0xc9a12593af9a1f5c8c8605c5c62d8f3007231c87226e3eaeeca52ece53dd647d. Chain 2 (Bitcoin): anchored in block 953803 (2026-06-15T15:41:00Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/e88d2de8-d041-4fdf-ba23-bcf4618c68be.json and https://artists.proofprofile.net/proofs/artist/e88d2de8-d041-4fdf-ba23-bcf4618c68be.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Jesús Vargas & Angelito Flamenkito Saca la botella
Noe de Madrid El Chani & Angelito Flamenkito La luna se enamora
Los Húngaros & Angelito Flamenkito Los novios se lo bailan
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 0x75e3fb275b78c9c0941db1524ed764d706d15a865aba676781b0772b917d383e. Chain 2 (Bitcoin): anchored in block 956841 (2026-07-05T22:14:35Z), 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/QZDFP1977089.
El Chani & Angelito Flamenkito Yo lucho por mis niños
Angelito Flamenkito & Remedios Amaya & Diego el Cigala Una picara mulata
Angelito Flamenkito & Sisquet Salazar Son mi locura
Duquende & Angelito Flamenkito Como el Viento
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x36325657efd365ad3a2d30065033223059191ca07d293c40273f9a3e6b5d4ffc. 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/QZDFP2054819.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1ae453bbe8b5f6b3b9f84dd3d1f0f97d6ea52e69c8da9e8c20a27e1cbf1804be. Chain 2 (Bitcoin): anchored in block 958484 (2026-07-18T03:34:53Z), 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/QZDFP2070059.
El Chani & Dani de Los Yakis Por randar un pañuelo
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd600ee8a50b06948d4b1c04de3552ffac065ce84d80744ac461efb7365594af1. 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/QZDFP2082218.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x31a534844d89d8c2e353b8ea24bce7e65cf49a4affd82121d157e3734d038975. Chain 2 (Bitcoin): anchored in block 958544 (2026-07-18T12:14:37Z), 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/QZDFP2108884.
Dejando Huella EL Chani y Emilio de los Madrileños pal Jimenito
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb2d1a7bac9aa8c4cc0c6b9579254e11be256b98e4f1f2947bdd8ce484ad8201e. Chain 2 (Bitcoin): anchored in block 958506 (2026-07-18T06:14:51Z), 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/QZDFP2121813.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x523a85f34782a5b287c10eb724c8264f23537bd1240be160972b38dab04741a6. Chain 2 (Bitcoin): anchored in block 958690 (2026-07-19T07:14:39Z), 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/QZDFP2126680.
El Chani y Emilio de los madrileños Cuanto te quiero
Sufro en silencio Bau Suárez & Jesús Vargas