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 0xecb9c22fac880f2617651e6c53357edbae173575b9be8ce139d7b212b229f1ca. Chain 2 (Bitcoin): anchored in block 953423 (2026-06-12T21:20:00Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/5e70e4ac-b982-40bc-b581-a55a1301aaa0.json and https://artists.proofprofile.net/proofs/artist/5e70e4ac-b982-40bc-b581-a55a1301aaa0.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
O Sarracino (feat. Vittorio Caligione) [Vittorio Caligione]
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 0x7967ae93dd864e61d9910557ce3e99ac93b85210d6aff090792591b49e5f25cf. 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/ITZB41301697.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x36f84868db25b9ee4b9852a4a249058caa654622296425e6459949217bef0365. Chain 2 (Bitcoin): anchored in block 958942 (2026-07-21T00:24:07Z), 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/ITZB41301701.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x886f48cdddbdf542eb0c3ac800d6dd9a12a3648654bc464b8d0a70dc59c54d2d. Chain 2 (Bitcoin): anchored in block 958384 (2026-07-17T08:27:02Z), 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/ITZB41302732.
O sarracino 2015 (feat. Vittorio Caligione) [Andry J Remix]
Boca Junior (Dale Dale Boca, Moliendo Cafè)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe2c791f70698f8fcf4ac21f75c7bc855e156b6b01c43255533dc049b00ee6b9f. 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/FR2X41791413.
Boca Junior (Dale Dale Boca) [Moliendo Cafè]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2d408e2b258dd8b674ff35fb707d91b1ef5fbc5b8c87a2e6f6e30e07ca4c8afc. Chain 2 (Bitcoin): anchored in block 958388 (2026-07-17T09:14:21Z), 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/AUXN22063309.
Eye of the Tiger (Theme from "Rocky") [Extended Mix]
Funky Nassau (Beginning of the End) [Remxies]
Boca Junior Dale Dale Boca Moliendo Cafè
O Sarracino (feat. Vittorio Caligione) [Remixes]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb387106f611c9ed06b2fd8489a9466015c4e4f0fabe4f2291c1663dd28e3eccb. Chain 2 (Bitcoin): anchored in block 958924 (2026-07-20T21:08:47Z), 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/AUXN22201939.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4741405da1b3afb7e48d4000a493483de92f77be4581f41f28563bc600f45f53. Chain 2 (Bitcoin): anchored in block 958432 (2026-07-17T15:43:17Z), 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/AUXN22220172.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x973dddfc2d0948014cbc110644a2f3cd12538ce428b2a90e39173aff31d3ba69. Chain 2 (Bitcoin): anchored in block 958931 (2026-07-20T21:15:01Z), 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/AUXN22220173.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x94c596ff6db2b729f82b28aa871f428e6d184c5eaa309fc9dbe50164fa20f612. Chain 2 (Bitcoin): anchored in block 958951 (2026-07-21T04:37:21Z), 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/AUXN22220179.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd68d9b25cbe009e6e558312f76bc906bf41ae83ede3aa9a249c90a70abc80396. Chain 2 (Bitcoin): anchored in block 956560 (2026-07-03T23:28:02Z), 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/AUXN22220182.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3f3963670e57409fd219a0a01398eeb5d96397697d757cca708a85d548ac3528. Chain 2 (Bitcoin): anchored in block 958194 (2026-07-15T23:03:58Z), 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/AUXN22220185.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0e7f56e533a4101ec4c8f6767f6444850544952d01de07394cd3ce42d629dbee. Chain 2 (Bitcoin): anchored in block 958194 (2026-07-15T22:49:41Z), 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/AUXN22220191.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb3632404b83823557e593a5863d3fae39301f47155c09b5728ae2d3b882d5fec. Chain 2 (Bitcoin): anchored in block 958885 (2026-07-20T15:55:12Z), 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/AUXN22222464.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbf01bff5c545b31e5c89a5dae4eef3ce1524e9a196d6d71d5162f3c48a8d75c7. 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/AUXN22222468.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe82b745bf1df772a7bda008812a0b67ffbf04c8647343ea8fbc2be2d435dbb24. Chain 2 (Bitcoin): anchored in block 956576 (2026-07-04T02:06:47Z), 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/AUXN22222469.