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 0x9c81ba2dfd875509e9df6d554a9d129ced1dcd23e8aca5dded34837029f726f5. Chain 2 (Bitcoin): anchored in block 953423 (2026-06-12T21:20:00Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/97863a34-9217-4a0b-950b-0ea3f13d7701.json and https://artists.proofprofile.net/proofs/artist/97863a34-9217-4a0b-950b-0ea3f13d7701.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 0xf782db9bfb9c2e6db52e18462c3ab7de085722b6db9e2810f09ac7b00f9b6699. Chain 2 (Bitcoin): anchored in block 958075 (2026-07-14T22:55:31Z), 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/KSA012248694.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfc72cf0bbe5cf80708c185dbb15de498b1d563e3c1a855ab7ae177616ddcacc4. Chain 2 (Bitcoin): anchored in block 958083 (2026-07-15T01:50:31Z), 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/KSA012248695.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xffa4a988e1a5ebd4142b3a6d4d9f8d00757376032382d680ceb37ad923c1c85d. Chain 2 (Bitcoin): anchored in block 958137 (2026-07-15T11:46:12Z), 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/KSA012248696.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x540ebccff2718986a9ce4ec717aa1d1ec078e000fbd95c21d50894b4d8deadd4. Chain 2 (Bitcoin): anchored in block 956474 (2026-07-03T08:56:35Z), 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/KSA012248697.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xca08a75acf6d4998586fa9f82c1e45ae2c46bbd8e8b761a810e49a4035437e3a. Chain 2 (Bitcoin): anchored in block 958153 (2026-07-15T12:03:04Z), 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/KSA012248698.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5a576e92c43529fa3cae09cce03f81e992ba683b6b125740c76cb0076834c1a3. Chain 2 (Bitcoin): anchored in block 956484 (2026-07-03T10:47:44Z), 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/KSA012248699.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcaedf8091ddaa2c3e264569dd7353f8dfc6db61cf002c33c6bf4ebfdcf068cb9. Chain 2 (Bitcoin): anchored in block 958180 (2026-07-15T19:39:27Z), 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/KSA012248700.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x45b89dddc83c001bd7d88566c4f8c995a37c8544b5c34e879e70b48ffd1784be. Chain 2 (Bitcoin): anchored in block 958152 (2026-07-15T12:00:27Z), 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/KSA012248701.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x277e464f1df8274e43ba4194d2d1efc67a4f6e4f9c1c6ec7ca3fc40a234517fa. Chain 2 (Bitcoin): anchored in block 958079 (2026-07-15T00:21:05Z), 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/KSA012248702.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x237f22d90f3b39842ae60eb127f8712d8aab6c0d658d06a0aba3391be25f9b25. Chain 2 (Bitcoin): anchored in block 958142 (2026-07-15T12:57:29Z), 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/KSA012248703.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x32062399e50fd3216a7cb692b24d8f4f87ec320723081b84a0e6dc28c12c9d97. Chain 2 (Bitcoin): anchored in block 958083 (2026-07-15T01:50:31Z), 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/KSA012248704.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x94b8692e2f27ea96dcea7550f9b41820a63810172f2f305915ba5d551ad74150. 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/KSA012248705.