The Serbian Choral Society Jedinstvo 1839 Kotor
{"copyright_id":"0x377d8a2a18fe0a0732779529afc4cd0c9e13cebe710d04e6ddb462c8a9d5baf4","name":"The Serbian Choral Society Jedinstvo 1839 Kotor","registered_at":"2026-06-15T07:18:58Z","symbol":"NIM0722806","token_address":"0xc05702bc06fd6ae40663773c374ad16a07a72bc1","type":"artist","uuid":"fe906a1c-4abc-4f3a-8de0-16ae99b015a4"}
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 0x377d8a2a18fe0a0732779529afc4cd0c9e13cebe710d04e6ddb462c8a9d5baf4. 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/fe906a1c-4abc-4f3a-8de0-16ae99b015a4.json and https://artists.proofprofile.net/proofs/artist/fe906a1c-4abc-4f3a-8de0-16ae99b015a4.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 0x7bd4bb287b776e80b8e0c755ca9031c1df4d5e64fcbd310c24121c35dd5256e2. Chain 2 (Bitcoin): anchored in block 958444 (2026-07-17T19:12:23Z), 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/PLA801650307.
God Is the Lord, Two Hymns to the Theotokos
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf0ab690ecc252e13587470235eae0e60e7bfcc10e9238c0923f7c5fb6ce78b0f. 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/PLA801650402.
Katavasia 8th Tone "Passing Across the Water as It Was Land" - Song 4
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5fed736eb4e39c97664d8f62a0c5fa6ec027ce98371d8d777e65390d6bffe830. Chain 2 (Bitcoin): anchored in block 958611 (2026-07-18T21:24:44Z), 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/PLA801650407.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1408eda00692bce2967ff984b5425031eb3aee54b24fc52a8e5a84ac8e50efe1. Chain 2 (Bitcoin): anchored in block 958444 (2026-07-17T19:12:23Z), 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/PLA801650413.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x184d0c2196b4c807f88e3083a5ab0f025fee22d27c3f2c8c97785477ba8a4658. Chain 2 (Bitcoin): anchored in block 958373 (2026-07-17T06:09:33Z), 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/PLA801650422.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8bde3db38a9c30b3108f508feb917e229e5b86cc3dfcb5689739db29fa2b618b. Chain 2 (Bitcoin): anchored in block 958373 (2026-07-17T08:41:36Z), 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/PLA801650424.