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 0xd3b818954f01c64c5a64364f83dd6dbdd5214681a1ad37fbb96f9293ca5da182. Chain 2 (Bitcoin): anchored in block 954623 (2026-06-20T23:40:06Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/cb2ee54a-a91f-460e-a142-7aaab6b3f6d2.json and https://artists.proofprofile.net/proofs/artist/cb2ee54a-a91f-460e-a142-7aaab6b3f6d2.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
And Night Shall Have Dominion (Remastered, 2024)
Unyielding Citadel/Lunar Ascension (Singles)
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 0x4570494be91bd1ec299f6b764ec41005ab76877682792835f9f15967ce00024d. Chain 2 (Bitcoin): anchored in block 958839 (2026-07-20T09:54:00Z), 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/QZTAT2516499.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x47c9c0f42b22a826f1320fc8198e1fd7079a0d22a3cdc55bba88cc772fb0cdc8. 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/DEW272500334.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf9c6ead59a110ec1f2a076299ae4fc9cd4af11c0712e5ac429ef43ed3843e8ce. Chain 2 (Bitcoin): anchored in block 958196 (2026-07-15T22:37:55Z), 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/DEW272500337.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb582d0d7e0e43eb69cd6556198f31b58f053455385747490273d0482262be1c9. Chain 2 (Bitcoin): anchored in block 956656 (2026-07-04T14:03:39Z), 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/DEW272500338.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3d2750062e0349b83a9e2310e5421e024fcc6052b47cd259f85d8d486643e0ad. 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/DEW272500339.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2961f2ad360fabbad7707b65105f463a02fe47121aadf54841c687cf33489a94. 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/DEW272500340.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6bf4838c94327bdcaf52f1e1b7abf82a0cf9e25b935ed7a33bc745a8a6003cef. Chain 2 (Bitcoin): anchored in block 956776 (2026-07-05T10:59:37Z), 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/DEW272500341.