1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. Open OTSProofURL → extract Bitcoin block number → must equal OTSBitcoinBlock 3. GET OTSBitcoinBlockVerifyURL → block must exist at that height 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 0x6d16329dc27618eb14adc5ca2d3784aedf5eaef7385019b6a7455065f608ebb2. Chain 2 (Bitcoin): anchored in block 954342 (2026-06-19T03:22:39Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/8aa19ec4-6bf9-4dd6-bec9-bd8f734f2e80.json and https://artists.proofprofile.net/proofs/artist/8aa19ec4-6bf9-4dd6-bec9-bd8f734f2e80.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Muntre musikanter - Karius og Baktus møter dyrene i Afrika
Muntre Musikanter - Karius Og Baktus Møter Dyrene I Afrika (Karius Og Baktus Møter Dyrene I Afrika)
Battle of Narvik - General Fleischer, til ære!
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 → block OTSBitcoinBlock must exist at that height 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 0xe547f61197b324ad13920ca13e93e50706d632a0f2f7cceed35b5f94a1c8087d. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/NODGN1601030.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5e0cb5d1fabca67ae8533191ccec8acb5f6f11947e26933dc047c8202f6d12a8. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/NODGN1601050.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa1f749d07176a2e4d4560f99556ffc1289be9ee88a43d9c8fc982277b0415a66. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/NODGN1601090.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x114ea3c5b21be7ea96223d5b45b53645e677fc7e2cac9333c3336a880e1cff8b. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/NODGN1601110.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8a58285743781ee9444e9f9d901e9f9f14c6d6e63667f2a3eb61b6c6caee94f3. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/NODGN1601160.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb854746a3eff3e93b9e59fed9723aac59f323d4973daba9cb4fab0c046e4aba5. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/NODGN1601170.