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 0x8a9155dbfdf34369b3a9aca7e225246ffe59dfe88f92d373cce25d089c882455. 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/d9ac1456-b7b0-4132-8e1e-e75457a1e462.json and https://artists.proofprofile.net/proofs/artist/d9ac1456-b7b0-4132-8e1e-e75457a1e462.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 0x383e60080e752f229f39ba2493e9f5ad6f20ed8aeb694a3f942ad27d95d2dc83. 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/GBSMU4291751.
Watch the Stars (Autumn Equinox Celebration)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x402c59f4715dce9d7fa22455296536a339f50d4251973fb5797a40ade340964b. Chain 2 (Bitcoin): anchored in block 958601 (2026-07-18T19:27:02Z), 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/GBSMU4773006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4e6c6288ec6fd9c79290f2ea376f863df63f151390ade2c18a3000b1673192a7. Chain 2 (Bitcoin): anchored in block 958885 (2026-07-20T15:32:54Z), 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/USA2P1932001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3f7698c2553bcffaf4d0ed918ef7724f7413b617de5423c878424e39faab32a0. Chain 2 (Bitcoin): anchored in block 956856 (2026-07-06T01:25:57Z), 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/USA2P1932002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0bb23be61d011bd995a7dea8ed6901cff4a2576261e20e6b03e8771a3f88b5b9. Chain 2 (Bitcoin): anchored in block 958891 (2026-07-20T16:02:11Z), 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/USA2P1932005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe3489ddce0e573065bacbe4c793cddbcad4ea48ac43c727bd3ab669f388d30bb. Chain 2 (Bitcoin): anchored in block 957642 (2026-07-12T02:46:48Z), 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/USA2P1932008.
We Are Dust - A Tribute To Of The Wand And The Moon
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2b4948f5ea56df238986b742728c5259850648c71a6749ea57593902988c06b0. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/DEPI82218219.