thumb|Tanghetto performing live at the Centro Cultural Kirchner Symphony Hall celebrating 15 years of their debut album, August 2019. thumb|Tanghetto performing live at the Milano Forum Assago with gu
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 0xaf8ec879324c5afbdaa3b94cc5f4dc676072871a32a7796d0430a119359973ec. 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/7326e8ee-cb01-4c36-881b-c4e80e1074f5.json and https://artists.proofprofile.net/proofs/artist/7326e8ee-cb01-4c36-881b-c4e80e1074f5.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 0x45736c07f0ac448cb0eed3cd077e2215b50d081a4074cba35446b33bff779a63. 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/USTC40887772.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x19985979565deb2962810d42a5dacaac106b4309dfaf580a7ac4f03a876acb03. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), 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/USTC40887773.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc8c019cc25eabc0679a646285e5ee5c5826bc9a7b9c078524ef5c9b44638a5a6. 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/USTC40887776.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xacce7aef8c3068a0ebcc5340653453e078b5fc03f4c003d64b3606584fbd2421. Chain 2 (Bitcoin): anchored in block 958980 (2026-07-21T07:04:12Z), 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/USCGJ2056858.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb4dfa1f3352c203ee538f84d00fe45b12c3f0b1f85861f9a169e6e7c30107b31. Chain 2 (Bitcoin): anchored in block 958377 (2026-07-17T06:48:00Z), 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/USTC50877870.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x34992e52eb953ffd4ff4ba1387c51ad68bfd683824486d03a78213447032661b. 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/USTC50877873.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x26befc18cb967197849cb237bfaa4edff65e680190cc928d56b2eeea710a8088. Chain 2 (Bitcoin): anchored in block 958853 (2026-07-20T11:38:02Z), 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/USTC40872403.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5bc15c32c440dced1f0f831c86f08f4bdd7449ae1b6d47b5ee13fdd42bb3b769. Chain 2 (Bitcoin): anchored in block 958444 (2026-07-17T19:12:23Z), 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/USTCB0971208.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xed297aaa5cb74e45dfb2a6aabf0993f0a7cbc3237e7341fb3c535f57bdb22296. 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/TCABC1178744.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x07ba780f6902892e95145af05430cf166dce1902a699f24ee9fc71ff6f1230fb. 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/TCABC1178742.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x642479aac3590d35713d3a2dc094f8b6d11996d44ffba9f3c6d029ff6141ce43. 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/TCABC1178745.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6417abeb990eb9135d48ecd4468dfe4e02525a03be71f44f8120f170a10a7ce9. 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/TCABC1178741.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xce8b7c842758f4ead2e2d945c52fee2980534720c1250ffe22476d488aaea1ee. 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/TCABC1178751.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2ad3f6d635542557f85c4c33d1f129e9850399e058b2926328298dd77461100b. Chain 2 (Bitcoin): anchored in block 958286 (2026-07-16T12:43:37Z), 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/TCABL1369736.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3bd3cf7a14f7bbb46a8824fa7e0262fa6bc83bcd588d5a194da8e71d338a8527. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), 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/TCABX1487664.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4e550d4969bd76c3c99e5f8ae7106e45eb4b0bc5f4b1f18bbf687ddd498a08e8. 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/TCACG1543608.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x857d2defc1fbf6a66b0977d2c6949f2bc4a624852b77608f801a73dba366d9ab. Chain 2 (Bitcoin): anchored in block 958870 (2026-07-20T13:33:19Z), 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/TCACG1543613.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5f1be76745cf9b23612b0eb8ae8f2d99573a5c8bae0d5c6eb4abf54f177559ba. 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/QM7282110975.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6c339190d94b3b70090cb9b246d067f527105b2bf5c7eda8da3f441c55239fbc. 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/QM7282110977.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9925c5202225d2c7171b0c63915d1d6e09b4da114417723e577a091515cc1698. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/QM7282110978.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9abe08ac3d5a5af5ab6394f2f80fb84bd6ea504a02857db1237ab95c998ed079. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/QM7282110979.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7bb525855f9167ae9d94a3a44307cb2c3e88d45c0515b3ea18ec82cd1d6512d9. 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/QM7282110982.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6505f689562c87184335dc8db21ee7a9a44b3978333c62a36c93e76b253bf63d. Chain 2 (Bitcoin): anchored in block 957122 (2026-07-08T03:39:04Z), 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/QM7282110983.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x129d2f5dd96b26ffe3f9f1f38ba898b61958747c14b4e26c342f55ed53611961. Chain 2 (Bitcoin): anchored in block 958224 (2026-07-16T02:28:43Z), 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/QMDA62142669.
Tiempo (Me Niego A Rendirme) [feat. Abel Pintos]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xea455cf808d841c8b09ef367425f5d1fe4bf8a96284db66b76fed50bcb637dca. Chain 2 (Bitcoin): anchored in block 958612 (2026-07-18T21:29:37Z), 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/ARUEL2300001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe76efabd4876c8f70a42113fc7d956d79bb8c918644025bfd185c2e690569f7a. Chain 2 (Bitcoin): anchored in block 958121 (2026-07-15T08:02:12Z), 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/ARUEL2300003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x38cfbfafd01010936d8eec1aeb7d4da32fb6a6a952d45b31976148b0a9575840. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/ARUEL2300002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfa40c9e5c639ed35498ed1ca1d07b5c088b1aebbb859b78177e0d2bbba49357c. 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/ARUEL2300005.