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 0x9865c14275fb7a6da325fdd52620e56423493b1fa29f92106ca066c57cd70dbb. Chain 2 (Bitcoin): anchored in block 953423 (2026-06-12T21:20:00Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/7b41f5b9-4c67-4a1b-93cb-9a7446ca9fbd.json and https://artists.proofprofile.net/proofs/artist/7b41f5b9-4c67-4a1b-93cb-9a7446ca9fbd.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 0x3ce6feeaf3914783d0464500fde403fed5ddb445db4ae766f1304bc91c839d63. Chain 2 (Bitcoin): anchored in block 957770 (2026-07-12T23:17:00Z), 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/QZPEW2429764.
the best i could, that's all that matters
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc0efc979352c08d6bf69b28564c4abb23258602a3133a536d6c76989f5bbd2ed. Chain 2 (Bitcoin): anchored in block 957745 (2026-07-12T19:20:20Z), 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/QZPEW2440722.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xca92fbee3e66a32e5dca5abc2173a2109e35cde9a9e75bad74b7166f0bec76d5. Chain 2 (Bitcoin): anchored in block 958074 (2026-07-14T22:45:25Z), 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/TLVEM2400914.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x40db297be3bcffdffc5b72bfc605913ec61540a94b13862f84cf1fad64fc4d7f. Chain 2 (Bitcoin): anchored in block 958163 (2026-07-15T16:22:07Z), 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/QT2VB2512749.
what i'd give to cry in your arms one more time
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0168c7dc93b11a36fb4a47b9d463c33142ce0d214195b6798223e09dc3a70d2a. Chain 2 (Bitcoin): anchored in block 958286 (2026-07-16T14:12:41Z), 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/QZVEM2567396.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc0efc979352c08d6bf69b28564c4abb23258602a3133a536d6c76989f5bbd2ed. 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/QZPEW2440722.