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 0x5294fc5eb431bf6ec6b4d7baa63165052068605ea47f9ac219f1122282f3dbc9. Chain 2 (Bitcoin): anchored in block 953727 (2026-06-15T02:33:01Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/90a28165-c44b-41d9-bcc0-c47c853571a4.json and https://artists.proofprofile.net/proofs/artist/90a28165-c44b-41d9-bcc0-c47c853571a4.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Waiting for Tonight (Nutcracker Dance) - String Version
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 0x32ec6e0f82af009fc899a2d831d5e1991abb3aa9c8d94c680be4b4de68f5ec71. 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/DEAP60800072.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xda3d141036440a974943bba30177aad623f462444b256e7e10da18b569c08901. 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/DEAP60800073.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6afa3971e2ad2a6488c51a864f23128335b2003d2a82c1ee046f05c0c96d3bd5. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/DEAP60800074.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2a28b9b7b2691bd809155119df7bce9ee68be2e9d1bc05688d240d81f5f24b6a. Chain 2 (Bitcoin): anchored in block 957032 (2026-07-07T11:43:09Z), 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/DEAP60800075.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x536be88c4bc42316a074413d3f7c9bdc1caaffcff693da6e21d034353832db84. 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/DEAP60800076.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x45dac00fff0db371b8c33abed0938932f258eee0c6925c4022ab1be32184aadf. 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/DEAP60800087.