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 0x4f0d766cff9101575563a4849ceca3cfae2a069976c166b2d6a7fe8d810841ee. 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/aa005896-fab1-4898-9d79-54e4f0ce394d.json and https://artists.proofprofile.net/proofs/artist/aa005896-fab1-4898-9d79-54e4f0ce394d.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 0xe983b2d473a273e10aab7af6250cb8c7eea1ba54e3a588c7ddc34cb07249f968. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/GBBLG1900069.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x31cda02db39658368d153c861ef3ce4c23bf15e9aa047dacd8746f9ecc026efb. 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/QZFZ22279818.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x48310a1c426abc0ed67305e220b6187fd1cd647540bce529afde1cc0f3dde7cc. 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/QZDA42125185.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7f97c8f196577eaf495679bf053cf623d87d8c09da8aa27e83f9f65b59444ed7. 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/QZFYX2251106.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x67933caf290865c351f40fbd05910cff520fa54245b81d6fe4ca508e4416f9dc. 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/QZFZ22279819.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcfb4563bfd0828b0417db22bac6dac03c0be8f2472f2e5eb7cc9fc181da6e4e0. Chain 2 (Bitcoin): anchored in block 954130 (2026-06-17T19:07:14Z), 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/QZFZ22279820.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x290b304b4fc42cca20046366738c036ea7405543f2da0a6e510d225944dbb0b4. 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/QZFZ32144863.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3a27a5fa1205c61d62ea6cb5b7dfdc1de2708a16fa6051581ee4930de77d0e29. 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/QZNWZ2094269.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x10fd6ad4ca0bc5a712f0d666ff4730ea91ae763d5eebd8d35c8bc6d71fdb3f58. 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/QZFZ22279821.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7f97c8f196577eaf495679bf053cf623d87d8c09da8aa27e83f9f65b59444ed7. Chain 2 (Bitcoin): anchored in block 956894 (2026-07-06T07:53:57Z), 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/QZFYX2251106.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9447b967ee639215ab083795ee7be1fe3294847fda6962ba4df1ba6a3c56f32d. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/FRU701500023.
Curious (Le Flex Remix) - Soleil Mix Edit - Mixed
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3bf4029c97aa2bf1c34e129ac7731f187662ecf7b478a221187260c6fd5b5991. 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/FRU701500036.
Meet Me on the Dancefloor - Soleil Mix Edit - Mixed
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x686b8a7b947de47efd91035b5c91a408596d8a8ee2792d232e0a6376e8d8a01a. 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/FRU701500047.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x48310a1c426abc0ed67305e220b6187fd1cd647540bce529afde1cc0f3dde7cc. 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/QZDA42125185.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x14779a44d8f0c3b7bbaca2977b4752d0e55375397eabbeb484c29ab1594175c6. 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/QZDA42125186.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x290b304b4fc42cca20046366738c036ea7405543f2da0a6e510d225944dbb0b4. Chain 2 (Bitcoin): anchored in block 957064 (2026-07-07T16:43:08Z), 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/QZFZ32144863.