{"copyright_id":"0xa5e4fa72c32cf90de177bb987fe50b851aebcbde0dba75b277ca7d420f2eb301","name":"Nedeljko i Dragan","registered_at":"2026-06-14T10:51:56Z","symbol":"NIM0429997","token_address":"0xdc96672b14334a1fac7e77a863611e7dff0da2c0","type":"artist","uuid":"3d33dfa2-e9aa-45a1-bbd6-ebab5a216dff"}
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 0xa5e4fa72c32cf90de177bb987fe50b851aebcbde0dba75b277ca7d420f2eb301. Chain 2 (Bitcoin): anchored in block 953648 (2026-06-14T15:20:52Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/3d33dfa2-e9aa-45a1-bbd6-ebab5a216dff.json and https://artists.proofprofile.net/proofs/artist/3d33dfa2-e9aa-45a1-bbd6-ebab5a216dff.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 0x97021c1eb5e56ce1ec811d9d5a9a98d9324064414d65ae541d640bf6c708105f. Chain 2 (Bitcoin): anchored in block 958885 (2026-07-20T15:53:28Z), 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/DEKB72509723.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xac00f2fff20cf91707abcabb9b4b5ba5e53b796a42f4f5fbbdb1af4f5f05ddcc. 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/DEKB72509735.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9617ff8d4d69b1278d6b83a4702b7f3705d780726e7dd08e245706c185dc6ed3. Chain 2 (Bitcoin): anchored in block 958695 (2026-07-19T07:37:00Z), 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/DEKB72509736.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7ffaf0956ddcbe951ab124e8a97f65aa936313f4793d8af8ce2fe42854991838. Chain 2 (Bitcoin): anchored in block 956790 (2026-07-05T12:31:54Z), 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/DEKB72510316.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x25cecb2d166f3d426e59a657965af8ce52e1827801454a86edabb5364b46f0f0. Chain 2 (Bitcoin): anchored in block 958696 (2026-07-19T07:45:31Z), 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/DEKB72510317.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xafba68d7bc22d5df2ac7fa48319afe85f167c2a373bf0b72909ffb7276e50137. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), 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/DEKB72510321.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4797bc91d35a9cb15e3c2fc03637e92b3874882179d8d100261960586f07f42b. Chain 2 (Bitcoin): anchored in block 958761 (2026-07-19T20:18:43Z), 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/DEKB72510322.