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 0xd0b6f91190f608b25310b2921b03262087a5bab10fb8a14f4dfb6bea87bc41f0. Chain 2 (Bitcoin): anchored in block 953803 (2026-06-15T15:41:00Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/e580bd5d-3461-41ef-9931-8b0110188673.json and https://artists.proofprofile.net/proofs/artist/e580bd5d-3461-41ef-9931-8b0110188673.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 0x99abf73643c7238df9d8ccbc7fd54a1e42566d9829d3baaad0ddcc61edab12c8. Chain 2 (Bitcoin): anchored in block 957026 (2026-07-07T11:02:43Z), 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/TCAEB1903624.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcd251ab3cbfa9a3a94f9d0e0aa4a51421c9eedd5f60da4753e566480c772ce9f. 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/TCAEB1903690.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2f728eed00b28e955e0764680b476d7e4d4643bf187640c8079a5f05cdc36468. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/TCAEB1903741.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4d84e084d8987bf661f3cf150cd9fb8bf074136c0ba0da5208e87fbf4d54ca30. Chain 2 (Bitcoin): anchored in block 958924 (2026-07-20T21:41:19Z), 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/TCAEO1906183.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd0567f3d8267d181d936a33b012b55d45c3be62c48258c6da471958685ec365f. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), 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/TCAEP1905245.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xef04a378fa1538b27b1b144f68d27558837ac4732c936b02e513c4960fde27f5. 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/USA2P2124912.
Shirazee Iguana (Remix) [feat. Mr Oulala, Icey Stanley & Le Pedro]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd20eee1cd62c4f350f2dee99f8e62c2d0fa8313d34ec335fe9bae819cbbfd6c3. Chain 2 (Bitcoin): anchored in block 956351 (2026-07-02T11:38:34Z), 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/TCADM1868527.