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 0xf6f9dbb504965b17ee5a106eee13d148ff149b39cadab91e4f476b2bbb5aa8aa. 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/aa3c2483-f161-45cb-8fc1-0728e293b640.json and https://artists.proofprofile.net/proofs/artist/aa3c2483-f161-45cb-8fc1-0728e293b640.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 0xad9b38958b44c8364904d0677702d34db6946d1e2ab3baf32fb911594b93ffa3. 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/ITDF62177092.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xad9b38958b44c8364904d0677702d34db6946d1e2ab3baf32fb911594b93ffa3. 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/ITDF62177092.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf3527e9520f8b97c1cd06608bcc4af91d66c2779bcdb519abb47729ccbf6bad0. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/ITDF62177158.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0e9a72d85491e44682a937e2a47e3838bdc033e9f811303969110ec3f452b873. 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/ITDF62177160.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7270cf6e541314a67c3f5f46b8b049dcf8a595cb7cd9b83d1a6a30d97037b292. 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/ITDF62177154.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd7cb5bad4cf1704c5135d0941998268ad903a13cb1056e051dd99d580020cf82. 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/ITUM72100203.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1e570719651a0c5cbe45254351397d4a977f1eb83d629e0f1492dca7fa33ce5f. 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/ITUM72100450.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x676229de91e2478bda938dcfc55942fc1dfafdd70c40f8382f72af857c92309e. Chain 2 (Bitcoin): anchored in block 957073 (2026-07-07T18:39:05Z), 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/ITUM72201512.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x676229de91e2478bda938dcfc55942fc1dfafdd70c40f8382f72af857c92309e. 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/ITUM72201512.
Non Lo Spegnere (feat. Entics) - Junior K RMX
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x179753094f68ac28b39b97f0f964148786296291ff13e7000b01283d5e316c0f. 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/ITUM72100139.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd7cb5bad4cf1704c5135d0941998268ad903a13cb1056e051dd99d580020cf82. 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/ITUM72100203.
NUOVO RANGE (feat. Sfera Ebbasta & Junior K) - MTV Unplugged
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x50e7b2ae50f4daae12af25a4723a60ee0b40e38d0b444faca9851a3e3c9212c3. 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/ITUM72101023.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe2fd5d03d4c222eca158ab629c266f535c758db7003b5a4f8ffcfdf58e5de4be. 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/ITDF62077140.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x50e7b2ae50f4daae12af25a4723a60ee0b40e38d0b444faca9851a3e3c9212c3. 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/ITUM72101023.