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 0xd4e8f77167eebf750f1226ea7a13e6e6d7d43e47e23199ee3738964cf898dbdc. Chain 2 (Bitcoin): anchored in block 953408 (2026-06-12T19:28:13Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/9df2b510-344c-488b-b791-c8b67bcd9426.json and https://artists.proofprofile.net/proofs/artist/9df2b510-344c-488b-b791-c8b67bcd9426.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 0xddab649a98208609e724cd307fa7c8c0a7c49fc7a0f4630aa151328f92da9df7. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/ES5152301054.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa1433e857eab5412b9c62e6af0562259b1dad279365e32830a4086209f5f4eed. Chain 2 (Bitcoin): anchored in block 956738 (2026-07-05T04:47:21Z), 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/ES5152400189.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc817d51124f0957a41b532dbf015d49740ad20ce7f1e4e87aa7fc5a97f5b6827. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/ES5152300902.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xea88c00122b4ab8a0a0b076ddb364626973a48b2bdad897e00a88fa31fc60a70. 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/ES5152400356.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2cce011822c6abd5c748a221fb25524d5351ad01deb141fecfffc74221cb3514. 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/ES5152400357.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa1433e857eab5412b9c62e6af0562259b1dad279365e32830a4086209f5f4eed. 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/ES5152400189.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa7dbab23d6db05987880f32fd15bea2918dbc841c3f9152583d4cbcdf27a7af6. 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/ES5152400091.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc1029bd581430c4acb5dd58ad167e2f56ac7e62ab08fe89b3cbdb7d27efb0e78. Chain 2 (Bitcoin): anchored in block 956349 (2026-07-02T11:34:59Z), 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/ES5152400358.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xddab649a98208609e724cd307fa7c8c0a7c49fc7a0f4630aa151328f92da9df7. 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/ES5152301054.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4c435ab6c48bc59c1f7f959d700247c4cad94b4c670bb7cd9cef39de2b2b24a6. 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/ES5152400274.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa81dc34d4891a0dbbeafaac5a2dab9a839a684eb8aba156328089bf19eda145c. Chain 2 (Bitcoin): anchored in block 958300 (2026-07-16T16:14:30Z), 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/ES5152400611.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x92f4be05c2a99521b97926b495246a954478c0b30bfd3a2d08376ef8d7fb47ea. 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/ES7311000029.
The Fuel Mixtape by Ale Acosta (Fuel Fandango Remixes 2011-2019)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb0ba4342b74dbb3c79011cb5c20947a28ed92e225e53ff6adb5641d00678da8c. 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/ES5152000004.
Medina (feat. Estrella Morente) - Ale Acosta Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe862b25368619142dcc6b886f5a6dc09732547a1632d6365fd822d915857d289. 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/ES5152000007.
Despacio (feat. Rycardo Moreno) - Ale Acosta Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1065fb5172e55861d0dfbc3ef041f5d028268e29554ef7ac823cecad8684fbce. Chain 2 (Bitcoin): anchored in block 957075 (2026-07-07T18:50:38Z), 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/ES5152000009.
Mi danza (feat. Dani de Morón) - Ale Acosta Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf47ab1e2679f439883015a974a80e15bdeccdfa4d432975f5ce5f8ae3c603bee. 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/ES5152000010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x47fbfff436d662a0f48cb7e78b58ff6bdab30d0ba0466d9e256a2b663b889f6f. 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/ES5152000012.