thumb|right|Bulevardi in August 2020. thumb|right|Bulevardi in 2019. In the middle is the famous Café Ekberg. Bulevardi (, Boulevard) is a boulevard in Helsinki, Finland. It starts at Erottaja and en
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 0x976bc8026a5bc7a338546b8e81027b9bee25020e5d781774996a3e52d33a0b1c. Chain 2 (Bitcoin): anchored in block 954588 (2026-06-20T19:15:05Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/b87f860c-8c72-43b6-ab7b-727cbabe2b47.json and https://artists.proofprofile.net/proofs/artist/b87f860c-8c72-43b6-ab7b-727cbabe2b47.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Lost Perceptions From This Point Of View
A Fêmea Está Se Preparando Para A Estação De Acasalamento
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 0x430b3873e9d33537df8a762966cc71386d3041ae7c831ab0c3d1efb3061fb160. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), 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/GX38U2112966.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0d8a8c3ec5541c982967d1c8dd2fef6511e2d4d901dc8d2f339a76ccd976abd6. 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/GXF972428613.