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 0x5679137857f969c3e7f2b62d7c2757981b31d61d102e9f1a8199e2429c290cb5. Chain 2 (Bitcoin): anchored in block 953791 (2026-06-15T13:40:30Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/dbd7fe7c-bcd9-4175-b856-70c2691e3510.json and https://artists.proofprofile.net/proofs/artist/dbd7fe7c-bcd9-4175-b856-70c2691e3510.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 0x1f5f7e72854a01673786883038c489f7a02d9a747bd17c53d0a50434b46f11e0. Chain 2 (Bitcoin): anchored in block 958362 (2026-07-17T04:32:48Z), 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/QZTAU2398480.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6ec0800dae5d1e5837a443ae6cad53729396423d38ecba52e1c515dda39a880a. Chain 2 (Bitcoin): anchored in block 958765 (2026-07-19T20:31:32Z), 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/QZWFK2308395.
Brain leakage from puncture wounds to the head
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe50295d2f1c016a3cb7fd014b8908b8cd4b607cc5f5c298ed4aa73580c718d96. Chain 2 (Bitcoin): anchored in block 956711 (2026-07-04T22:48:52Z), 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/QZWFK2308396.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x180134e46ebd6e0e09ba30ad7cd510f68213ae1bcb12fe8c3273feb9b9082a12. Chain 2 (Bitcoin): anchored in block 958176 (2026-07-15T18:28:00Z), 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/QZWFK2308397.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf3f03468b18db653a423825c255ca9dcbc98fba67d1e790027c6ebfa8ce57b1b. Chain 2 (Bitcoin): anchored in block 958607 (2026-07-18T21:01:11Z), 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/QZWFK2308398.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd161843dff93db50b71f0b6b989e12ec78155db91aef5d2324f515691e3535a4. Chain 2 (Bitcoin): anchored in block 956713 (2026-07-04T23:03:25Z), 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/QZWFK2308399.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaa7e7b605692e3eb7b9a662f7c843940bc68cac25a272b4e38d07bfbd7701568. Chain 2 (Bitcoin): anchored in block 956856 (2026-07-06T01:25:57Z), 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/QZWFK2308400.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x074f2616641145ea1a745eadd287d884aad0598fdd0db0588b662a4ba87fdb1a. Chain 2 (Bitcoin): anchored in block 958319 (2026-07-16T20:12:32Z), 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/QZWFL2307599.
Various Exhibits Of Charred Flesh And Bone
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9246cfa39c00c004876fad8a5201f67741bd6715b5ded62ebb13792dfcc8f835. Chain 2 (Bitcoin): anchored in block 958943 (2026-07-21T00:27:37Z), 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/QZHN72404863.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x176a3f944517b33b4549c00939cf2a1f94291cd71d552d747f43f21a8a5856b8. Chain 2 (Bitcoin): anchored in block 956891 (2026-07-06T07:16:32Z), 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/QZTB82438220.