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 0xfde4896e5a6230cbe3940c30364ae10f408d5e59a1482cc60af153b1957b5c0e. Chain 2 (Bitcoin): anchored in block 954342 (2026-06-19T03:22:39Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/9069fd9e-3838-490d-84f1-9a0f300f9452.json and https://artists.proofprofile.net/proofs/artist/9069fd9e-3838-490d-84f1-9a0f300f9452.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Anthony Bourdain: Parts Unknown (Music from the Original TV Series) Asia & Middle East
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 0x9559821d2e31d10f2917f22b6c2623050059686299657c1baf0f4814634951b4. 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/DEEP81000815.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x14b18171fa9937e7117e41302ad2ddf4bb1fa6825dae6709cbd6cab082fdef04. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/DEEP81000823.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2f82c39500fc7ce8475905356892b3ec2083a947e70d48c097fc264240556616. 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/DEB631001519.
Nature Studies, Vol. 12: Minimal Backdrops 2
Nature Studies, Vol. 11: Minimal Backdrops 1
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe63e4b1e0f032187da05bb049cd54964ca10aa02a78bfa51bd4a4052a9087cdb. 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/DEB630505038.
Der Weg ist das Ziel (The Journey is the Reward), Vol. 1