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 0xbcdf6dac7dc4fab173e1f390e31cb94b98cdd05a76cadf4dbeaf14b1ccc19ab7. Chain 2 (Bitcoin): anchored in block 953778 (2026-06-15T11:57:35Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/d02f7ca2-58a2-4d2d-b2f4-0db213b5e453.json and https://artists.proofprofile.net/proofs/artist/d02f7ca2-58a2-4d2d-b2f4-0db213b5e453.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Against the Machine (Bassam Jalid Remix)
Secret 2.0 (Diego Morrill Pres. TDM Remix)
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 0xa7582ad03dc6879e4d345486139f5fabbfbe468b11dfc1315fa9bfc8380b6a7c. Chain 2 (Bitcoin): anchored in block 958137 (2026-07-15T12:28:55Z), 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/NLRD52304342.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x545940362cdf5d856ee1f3ea2307a4416e6b348ba54fdb2217912ebe19b482d1. Chain 2 (Bitcoin): anchored in block 958137 (2026-07-15T11:59:06Z), 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/NLRD52352511.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4a432d8f9a2571ae47a21a4abd84b905e56089f513d3b11d13458a9bd311a722. Chain 2 (Bitcoin): anchored in block 958194 (2026-07-15T22:57:40Z), 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/NLRD52425742.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc177a013582e7c4f872c24437ccc358d019f9ea4a11fc8030ad8bc375092cccc. Chain 2 (Bitcoin): anchored in block 957899 (2026-07-13T19:36:39Z), 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/NLRD52425744.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xda5823d9f8159bb9f84b9bda4378e33bafc1546cc165cdd9a549ef9e9d245b1d. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), 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/NLRD52425775.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd47a584d711d06b48f93f40c02911ef08a45c1d69d40727a94b80b181a64f0c1. Chain 2 (Bitcoin): anchored in block 958373 (2026-07-17T06:09:33Z), 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/NLRD52425776.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1f6eb59d255af4325ad5cee3f68658b870fb12890fc70203ddc0307831c25af4. Chain 2 (Bitcoin): anchored in block 957785 (2026-07-13T01:55:31Z), 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/NL3M12503594.