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 0x72bf16e2ad7b7b43392dd0c880783ee477e6764229e2cea2858654614ec7b8ef. Chain 2 (Bitcoin): anchored in block 953770 (2026-06-15T09:50:11Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/b910faff-07b4-4e35-901d-1bada3fd019f.json and https://artists.proofprofile.net/proofs/artist/b910faff-07b4-4e35-901d-1bada3fd019f.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 0x6c7ae788af8d31fdd5030f9de361a7ba0680fc8255232c3808cf286733fe2b2e. 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/SEVSZ7300402.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcc2c3f9acb4989a88ccd1bf3f29c007f78b1ae53649d6620042cda5b5dcbfe10. 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/SEVSZ7300404.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x60ea4e16d8071489edf4e23143c79acdb07d4102b8dd091074d8516093cc7707. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/SEVSZ7300405.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe82dbc2f3a17d474267f73792c74cd447c06928aa277a73ca3b53bd4035d26a7. Chain 2 (Bitcoin): anchored in block 956891 (2026-07-06T07:16:32Z), 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/SEVSZ7300406.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x515f5bc343059e8a8c11c1cc458eaa60fce71b60fe2a38af573ffe368413b782. 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/SEVSZ7300407.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0b7a7bf39fbbf833d5b2d28136b21d5dc01555d318ca6b91ccac090a3c56da22. 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/SEVSZ7300410.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf77b3579b410761e946f8ec3bd0c99a251adc4b0b016cb234be26a6239b4bf17. 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/SEVSZ7300411.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe82dbc2f3a17d474267f73792c74cd447c06928aa277a73ca3b53bd4035d26a7. 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/SEVSZ7300406.
Livat I Finnskogarna Med Roynes Orkester
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe6750707fa18b15f78e5ca7e017c14fae6fdeb547e2714927b1b91f2ad9b8567. 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/SEBNE9590310.