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 0x79d262e6c92aea840c7ee2e083fe93d470757e660c44e421d4e6e83ec949c914. Chain 2 (Bitcoin): anchored in block 953842 (2026-06-15T22:22:30Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/e2d3daaf-33a9-4f04-bdc8-834b76d40f50.json and https://artists.proofprofile.net/proofs/artist/e2d3daaf-33a9-4f04-bdc8-834b76d40f50.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
in the arms of Morpheus (The Sandman's Seduction)
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 0xb7583e5a8b36e51d2755ed237d24774e6d509a0a8bfbd315e15408e148fbe97a. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), 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/QZZ7V2475055.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x93ae9288899976f19929aba0d4e8bab0d88a14626ea9e0a24112479e6337169f. Chain 2 (Bitcoin): anchored in block 956639 (2026-07-04T11:19:20Z), 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/QT3F42420745.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8902f4b572bddb8efcd92f2133c8c6d3de24d71d98c52e290933cfbf1050a39e. Chain 2 (Bitcoin): anchored in block 958920 (2026-07-20T18:14:22Z), 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/QZFZ72572354.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1d892d5c613961f063c4a2b895f231230374f1fcfab26c9735ed406d3a44f58f. Chain 2 (Bitcoin): anchored in block 956474 (2026-07-03T08:56:35Z), 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/QZDA82590878.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xde8b032b43e71b8e9624f8574af18fe3cc0e0dfaca8342816c0ede65a0e96516. Chain 2 (Bitcoin): anchored in block 956728 (2026-07-05T01:43:49Z), 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/QZHN82592469.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc66b544d84945ca64d42beedade8f0b7166077ca5ee4d2b53d541596f1dbd445. Chain 2 (Bitcoin): anchored in block 958246 (2026-07-16T08:28:54Z), 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/QZHNB2561980.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4c627170da8abe6a43c867d52523c84a6cc6b9c9a5879f268db3b2ad3491b161. Chain 2 (Bitcoin): anchored in block 958245 (2026-07-16T05:50:22Z), 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/QZHNB2564142.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x03501718507115792daa6801f52fd2904fcb2dcadb6ed380e3b0755857d12a8d. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), 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/QZK6L2553420.