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 0x76d715af1c24d1bbbd820076e171b6c170b5a41725de8ff3af1dcba5bb63df2b. Chain 2 (Bitcoin): anchored in block 953407 (2026-06-12T19:24:56Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/ae924529-32bc-47ce-9e14-d8b085ed4b7e.json and https://artists.proofprofile.net/proofs/artist/ae924529-32bc-47ce-9e14-d8b085ed4b7e.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 → 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 0x491f65cc2ba46e7958b54ce4c29036c807d50f5077ea059d2eb9dc1fddcab374. 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/SGB502475766.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x927da83c4ac918522112c0a222f8c0eed9d32db6befed72d21fdbddec0635d8b. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/GXD7G2412838.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xba776277bd466cac970eebeead772941efcda8a04c9257ac0d53a64053a051e8. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), 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/GXD7V2359737.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xba05897af527832688a97571fdae097efcb984d7611d9450acfd4db86e960353. 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/GXBAV2277965.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x545b7e8b16479ada5d05576a49745904ed4ab157638978cdac182f5293b1a5a9. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/GXD7V2201870.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9ed31ca3bdfbfeac5a99e5aa226ecf9cbde8afb9e4bf59af9d83013d6dd04a19. Chain 2 (Bitcoin): anchored in block 958234 (2026-07-16T03:46:09Z), 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/AEA3A2348384.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7a1252bf8eb06e35c72a65fb93117010564e2ae852e1cfbe9455540ddacb60db. Chain 2 (Bitcoin): anchored in block 958404 (2026-07-17T11:34:58Z), 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/SGW502249252.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaca1485ff3c7771afa6c0178b37e4e7fa9d6970569aea4db9b7bc3d16f75ab1e. Chain 2 (Bitcoin): anchored in block 958054 (2026-07-14T19:33:24Z), 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/SGB502596737.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5f7ae6dd3a8eac059522fe108d6a1030b932743acc262373bbe67427bb0e6d69. Chain 2 (Bitcoin): anchored in block 957819 (2026-07-13T07:53:33Z), 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/AEA3A2555223.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x72c3a60283d035bcf1e66898d2f6c1cf73b58c07275aab5fb6d07d2468cc3f0b. Chain 2 (Bitcoin): anchored in block 956776 (2026-07-05T10:59:37Z), 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/AEA3A2139757.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9db0ea0c0eef2a02efab698bfeef1b46fbfd87d77bef3f0d36d00a62dbaabec3. Chain 2 (Bitcoin): anchored in block 958256 (2026-07-16T07:22:18Z), 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/GXBAV2119822.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x26c4b8684c82a185b9aee4964b36d4694a6e97080cb398cee23c9ecb4152174f. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), 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/QT5M52579605.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6099e75cfa9e9ad0691779cc117cdca112ec73da67db836ff04bea335597b717. Chain 2 (Bitcoin): anchored in block 956889 (2026-07-06T06:56:49Z), 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/QT5M52530942.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x09b17ab88d17a85fefa58470d1617cf598ec5672b044bdea0a556488c926eb9d. 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/QT5M52538321.