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 0x1f343199654961711b854dfb9a449d1ce67c62fd0695942c2a440decc3765ad1. 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/3538e4ca-4969-4387-938d-479955d6dd4d.json and https://artists.proofprofile.net/proofs/artist/3538e4ca-4969-4387-938d-479955d6dd4d.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Sulo Io (Original Gomorra / Gomorrah Soundtrack)
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 0x21616fe1e0de46ed37d795715f659eaf7b894022e92c6cbbda319212ba32e362. 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/ITVKL1800063.
Nun passa maje (Original Gomorra / Gomorrah Soundtrack)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x597a6af83bf7ccae686d67f33f10f5859bed32d1a18a530f35bf6ff2cc0706e3. Chain 2 (Bitcoin): anchored in block 956484 (2026-07-03T10:47:44Z), 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/ITUM71900548.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x55f8519daad4ebb1c4d91e66c05d706546f4b80094eb906a387ccae3eb9800ae. 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/ITDU82000101.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7403b2704346f6d813c77975b162d4c2ce0d31d3e1a742f0a87b104ba91cafdb. 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/ITVKL2000201.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6785b02d5027417826ea5b254191dfb8b1694ca4c8eaed7b24525dff6e663372. 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/ITR632100232.
Te arrubat o' core (feat. Joka - Nessuno)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdbbdf21023ca86c8edf77af5b467ce25b3d752c96652a3d0da2e53fa2619559b. Chain 2 (Bitcoin): anchored in block 958428 (2026-07-17T15:15:14Z), 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/ITTL52112871.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x48bbde1bf7be376610e6e2ef782801d6ee2e45e9c3da665fd7dfdb7fa1a387b8. Chain 2 (Bitcoin): anchored in block 956713 (2026-07-04T23:03:25Z), 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/ITVNG2200006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8dc2dc2c43c5ee067e2535bd0c73f6b1b5af356c511c589d17c5be6ebc8c8bf0. 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/ES71G2306100.