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 0xb4587a0ebb0c00fe629656deca21df17780ab06d00d8c5b8251eb25ba53e7c32. 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/e3696e1b-a9de-4ca5-bab0-96ec56d8d4e8.json and https://artists.proofprofile.net/proofs/artist/e3696e1b-a9de-4ca5-bab0-96ec56d8d4e8.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 0x881c4afed5b604182de6038962137a2b326dd3df4ef5c03ee3715f8c4171d4a1. Chain 2 (Bitcoin): anchored in block 958180 (2026-07-15T20:16:03Z), 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/FR2X42083044.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x61895e106e1c836910bf4e9f0b372d3225d4fe55ebfa88b7e464c5dace07304a. Chain 2 (Bitcoin): anchored in block 956422 (2026-07-03T01:01:38Z), 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/COFC11110023.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x77e0868a3c4fbdab6e199c443025a79457284602e9c7ff83f5cdeca8c0418453. Chain 2 (Bitcoin): anchored in block 956422 (2026-07-03T01:01:38Z), 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/COFC11110025.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5053a3ddc30cd92fe4da559d85a4201bdf180efee87fa45b41234be986983d45. Chain 2 (Bitcoin): anchored in block 958462 (2026-07-17T23:17:53Z), 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/COFC11110028.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeff04808158d47af80e5a6990dabb4b6a46f91e8503dfd221f4a2ad17a100596. Chain 2 (Bitcoin): anchored in block 958951 (2026-07-21T05:00:04Z), 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/COFC11110029.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x522eb6e43afbe383d73d85ba6b6e9a790c014ac18bb9149d1996cf4d51a7bdd2. Chain 2 (Bitcoin): anchored in block 958508 (2026-07-18T06:27:01Z), 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/COFC11110032.
Me Deja el Avión / Te Busco - Bonus Track
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9ccbf5b659f652e04ae31b1ce61c7ce07e39a2413964b09072a3cebf1f17e2e7. Chain 2 (Bitcoin): anchored in block 958714 (2026-07-19T09:51:44Z), 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/COFC11110035.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7e9fac197370cb6f2f4975dffbaa313f83be13135291378e76793fa578d9ce88. Chain 2 (Bitcoin): anchored in block 958357 (2026-07-17T03:33:42Z), 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/MXB811600005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7ba0ea8e05f24fccc69ed7e24dbc4d5b374e8c238383e37c1e8139aaec830c24. Chain 2 (Bitcoin): anchored in block 958395 (2026-07-17T10:10:33Z), 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/MXB811600007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9f1add4b29d73d9c6f8c8c81806a5cc66cdd606a25ab639fba18d9615c8f266b. Chain 2 (Bitcoin): anchored in block 956728 (2026-07-05T01:43:49Z), 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/MXB811600008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc9accae97aaed0468434ec3d83880812fc8fb3a556c130966fab55349a018848. Chain 2 (Bitcoin): anchored in block 958951 (2026-07-21T03:56:38Z), 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/MXB811600009.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8710f6d5e578101b73baf6a80b4dd3e9062f0f56a3e2a9e31c755b0e9320c496. 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/MXB811600003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc33be4edabccca49c529f4d17104b44a94be97274b49df49e8a08b9113eee9f3. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), 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/COSO11700147.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x07d727b3694c98da26d46d8bd2da6b5e29a1c00e4348ae38e809c0c4992c8b12. 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/COSO11700150.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x65310237e49955f7412aa5cad48e094a5e42bc9583744b8a2bac177e9f517d4e. Chain 2 (Bitcoin): anchored in block 956639 (2026-07-04T11:19:20Z), 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/COSO11700157.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaf31297ccb5894d6fd26abef051ba337346470b48612b0bc76f9190146b8ef42. Chain 2 (Bitcoin): anchored in block 958316 (2026-07-16T19:42:29Z), 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/COSO11700151.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3abeb06afb250855e535420c23304d129c8f8fad965f8e86add3c80aca974806. Chain 2 (Bitcoin): anchored in block 958746 (2026-07-19T17:34:28Z), 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/FR26V2066260.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x03300a358c15855dba769c1cf97258ff840d3d2b5aa8cdf9f1bcffd83a73388e. Chain 2 (Bitcoin): anchored in block 956656 (2026-07-04T14:03:39Z), 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/DGA072157187.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x452dc10312a5c893aae5626698794a9b751332ab27c60ee51e205f717f81bf20. Chain 2 (Bitcoin): anchored in block 958415 (2026-07-17T12:50:13Z), 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/FRX282073709.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdcd2bc7960467855e289c9a3b244760721ebbe1140c65c35579199eb93505348. Chain 2 (Bitcoin): anchored in block 958611 (2026-07-18T21:24:44Z), 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/FR96X2143167.
Camino (En Vivo Desde el Teatro Colón de Bogotá)
Camino (Desde el Teatro Colón de Bogotá)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa259523ea12e1e8b4fc5b2e199b9ba78f7aa17c5c21d01dd8ffe438afbd1867c. Chain 2 (Bitcoin): anchored in block 958924 (2026-07-20T21:30:44Z), 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/FR96X2228149.
Nido de Amor (En Vivo Desde el teatro Colón de Bogotá)
CHABUCO DESDE EL TEATRO COLÓN DE BOGOTÁ (En Vivo)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbe6a972f3598d52e6b29d747f819bb633f0742faa6e55ec6069bd46255c54d10. Chain 2 (Bitcoin): anchored in block 958621 (2026-07-18T22:59:44Z), 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/FR96X2233146.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe292cc658f1b42f186d0289a10d85c49a577005292e397efc1c5f645bcf38cdb. Chain 2 (Bitcoin): anchored in block 958194 (2026-07-15T22:20:29Z), 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/FR96X2233148.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1f520860d77f29c7e436927786ab60437a52fe8cfd036aeb15c1e1b683315033. Chain 2 (Bitcoin): anchored in block 958817 (2026-07-20T06:49:43Z), 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/FR96X2233157.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xae308b3b335a34863ebbc2fcb378696bd147c013127de74bef00894a617eea9c. Chain 2 (Bitcoin): anchored in block 958746 (2026-07-19T17:45:58Z), 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/ES71G2316470.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9db78fec1a3a425ca259ae7e25943f2ca1116f3a9a9193c3a8e25c516e209c81. Chain 2 (Bitcoin): anchored in block 958625 (2026-07-18T23:11:57Z), 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/PYC842403921.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8233def4240fcee2add02f544e22883bc0145bcaf28a7f014597378dfe952461. Chain 2 (Bitcoin): anchored in block 958166 (2026-07-15T15:55:19Z), 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/PYC842403924.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x74cb21c1f301e4bb7b46dc902d0515fa7f8d1e983778cb375e04fe82586e2e35. Chain 2 (Bitcoin): anchored in block 957872 (2026-07-13T15:39:45Z), 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/QM4TW2581688.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc2643ef12e71d1659ab9bc540d6c62032062c62ff92d7cd1888e56ebe8271db4. Chain 2 (Bitcoin): anchored in block 959052 (2026-07-21T19:50:27Z), 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/QM4TX2563292.
Contigo Aprendí (En Vivo en Buenos Aires)
Me Estás Haciendo Falta (En Vivo en Buenos Aires)
Cómo Dos Extraños (En Vivo en Buenos Aires)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbdf14377fd3ec195c6db4a3ebd3d6f07101f9ef041833eb3d93577c64b93b0ac. 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/ES5702100032.
De Qué Callada Manera (feat. Chabuco) - En Vivo
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xea530ed9df6f7395bfbaac9157a4714c541b2a63bf6c8b310160c4502c1d0da6. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/MXF011500298.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8f70a2682e910df97b978ec640fba8c856225ea018da2fe4aa2c2eb53741817b. 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/QZ5AB1625881.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1e645cc14d811061e5b29f5eff9553c275b3b47d1dbf07e5cb173006aa064082. 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/ES6081710109.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf76c26bcfe412bb3d50c115ef477ec87d71e3a149cd1c3d34346ca57130f80cb. Chain 2 (Bitcoin): anchored in block 956856 (2026-07-06T01:25:57Z), 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/ES71G2412462.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x005b80026771c1cdcd73a68bf902c3eee416c5e3b21a350bd0dd5d093653662f. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/ES71G2058642.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x857dea25e39a760579b513cb599aa1d2e2233e762727d662aa3e8bbc09335b3a. 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/TCACT1622060.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x25e3d8c48e0a126b80ed46b0ae2cb52f0e42ff74a158a9eebadd362775eb5dc9. 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/ESA011971742.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x80f05d328495dd4df6ab69a19a0959dd0270da4e80af43c65fe76e3a13410870. Chain 2 (Bitcoin): anchored in block 960106 (2026-07-29T12:41:21Z), 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/QZK6M2429091.
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