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 0xda033b59b917606fb510a726ac4f091d5a8145459a659d5f3859eaa6186469ec. Chain 2 (Bitcoin): anchored in block 953408 (2026-06-12T19:28:13Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/8cb077f9-7c08-4aae-9916-3f83e6b55e84.json and https://artists.proofprofile.net/proofs/artist/8cb077f9-7c08-4aae-9916-3f83e6b55e84.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 0xfe665ab83b2fd44b0644ae4e6a75e77b1bc34128a61b2d5b55a559c2a7771277. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/NLH2L1900157.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x32d1bdaf795dd9c93973d5a227e10cc1e2d1482904b1035ca5fc27d8c9047a96. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/NLS762200094.
Complex Aftermath (Official Shockerz 2022 Anthem)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1ebf5bb56ae4eaa06409942ae4c8f2cbe59a8c3dd5ffd931f3666f9f9416325e. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/NLH2P2200081.
Ready For Lift Off (Official REBiRTH Festival 2023 Anthem)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1050ddfc9f72b3a549543fcf7cddf4abe4b4ce4aa7005fbf07f658112d9977f2. Chain 2 (Bitcoin): anchored in block 957750 (2026-07-12T20:39:38Z), 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/NLH2L2300263.
Run Away (Shutdown Festival 2024 Anthem)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc0b8632d5fdc429ebfaf587513551d08049d82794200ed5503ea40412b9db0f0. 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/NLH2L2500015.
Where Legends Rise (Defqon.1 2025 Anthem)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4ef3d8e1d7c2adbc527b2c3b0f971269dab0ba4a158b55a3f8aa30806233cfbe. Chain 2 (Bitcoin): anchored in block 956639 (2026-07-04T11:19:20Z), 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/NLH2L2500133.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3fa1ff9a1909a0af9734d12570bd9a648c46044dd3d79a50674703f9c55db565. 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/NLH2L2500264.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf6cff2b564e5205e75ac8571a0bcb3287c04c72edac68289e80c559730a767a0. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/NLH2L2400071.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfdf3f2fceb0504206222f7299800255d1d39a32c7b9d2f4864f36214bf42d1fa. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/NLH2L2300262.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x32d1bdaf795dd9c93973d5a227e10cc1e2d1482904b1035ca5fc27d8c9047a96. 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/NLS762200094.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf8e6e9be220356301aa298a8becf36d8279b8dd316558166e575c461b9459ac7. 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/NLH2L2400197.