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 0x24caf8ab37b0e58cb96072a50f450b08ecd9eda3400b38d2a06ebb6bc469513b. Chain 2 (Bitcoin): anchored in block 953407 (2026-06-12T19:24:56Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/fd0a4e89-16ce-44bf-964d-b0c9b36bc929.json and https://artists.proofprofile.net/proofs/artist/fd0a4e89-16ce-44bf-964d-b0c9b36bc929.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 0xce827e80413a93b994f36706763b70b38d7c844d42f2334ead194ea787cf5362. 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/DEK971410525.
The Heart of the Ocean - 2481 Nautical Miles Deep Mix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xab00178b5f16e256d7eedd2630d57ebb08c4bf93b912d3aa9ca9c0d8e6fbf011. Chain 2 (Bitcoin): anchored in block 958942 (2026-07-21T01:57:15Z), 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/DEK971410526.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd555ac71ba40efd152fff317ebb34d708a07caab048d57031caa4d53b076028b. 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/DEK979910027.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcf5b18bedbc3b6af0c1afdefacf1ebf99c6272c88579163eb552e1c71a516c79. Chain 2 (Bitcoin): anchored in block 956476 (2026-07-03T09:04:44Z), 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/DEK979910040.
Unchained Melody (Original Motion Picture Soundtrack)
Unchained Melody (Love Theme from "Ghost") - Video Cut
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x75aca7b02877a30d9cd66f84f0771a1ceca85cb2a5a12285ebef4dd75d332bca. Chain 2 (Bitcoin): anchored in block 957852 (2026-07-13T11:25:45Z), 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/DEK971410529.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x80d2d64d68b45aab4730831d66e05dba503944a89e7b0f3bd546ad2af2d73f84. Chain 2 (Bitcoin): anchored in block 957851 (2026-07-13T11:26:33Z), 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/DEK979910041.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xba88a0957203a861ad7a3f8ec688336aa5a5b53f609a409401d49c8ad66cdd68. Chain 2 (Bitcoin): anchored in block 958650 (2026-07-19T03:36:41Z), 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/DEK971410532.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x245f56c833b340bf2b9000463f6bbbfed61aabf910a001874deef70dc1e9f1f6. 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/DEK971410524.