thumb|225px|A member of the French Army's , armed with a flintlock, Fusilier is a name given to various kinds of soldiers; its meaning depends on the historical context. While fusilier is derived fro
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 0x0ba5d62a0d4610309014b679e22dc82fab1ef954c504df56566194af9c6b8ba0. Chain 2 (Bitcoin): anchored in block 953765 (2026-06-15T08:55:24Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/bcbfd5c0-4eb5-4de9-9b5b-78f5eff9450a.json and https://artists.proofprofile.net/proofs/artist/bcbfd5c0-4eb5-4de9-9b5b-78f5eff9450a.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
The Archer's Triumph (feat. Rick Clark & Evan Jolly) [Ev and Rick, Together in Prague Remake]
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 0x3146199deb2d810733c561ee4d05e242e687523fe2c992875c900e82bd36f8fb. Chain 2 (Bitcoin): anchored in block 957891 (2026-07-13T18:21:04Z), 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/USA2B2405013.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdfbb74216791916a1d19455b1c373e52264f10f4d44500a3ed08fa321d038b15. 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/USA2B2405015.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x36a94869229d4bfcefb4a55e97d4a8df6c57ed96ad5d749bba952c9c854d4acb. Chain 2 (Bitcoin): anchored in block 958802 (2026-07-20T01:04:02Z), 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/USA2B2405010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3146199deb2d810733c561ee4d05e242e687523fe2c992875c900e82bd36f8fb. Chain 2 (Bitcoin): anchored in block 958544 (2026-07-18T12:14:37Z), 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/USA2B2405013.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdfbb74216791916a1d19455b1c373e52264f10f4d44500a3ed08fa321d038b15. Chain 2 (Bitcoin): anchored in block 958951 (2026-07-21T04:08:43Z), 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/USA2B2405015.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7ed5c960e25a9cbd25cde9db414a81aba2f6866377066ff97aafd0636b8c9df2. Chain 2 (Bitcoin): anchored in block 958690 (2026-07-19T07:14:39Z), 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/USA2B2405019.