thumb|upright=1.35|Wildfire burning in the Kaibab National Forest, Arizona, United States, in 2020. The Mangum Fire burned more than of forest. A wildfire, forest fire, or a bushfire is an unplanned
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 0x87fe84f15b5f9977ce2f7262111fe5ee4a82d3be8eb780f4380c6d28c58b4e16. Chain 2 (Bitcoin): anchored in block 953648 (2026-06-14T15:20:52Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/44c0b06f-d273-4a42-8209-c6235de10a73.json and https://artists.proofprofile.net/proofs/artist/44c0b06f-d273-4a42-8209-c6235de10a73.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Night With A Witch (Reissue Version 2023)
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 0x691879492a4b26444fb6be7d6e9a88bd4ef77c162a3c11be8016f9c45b3c3b74. 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/QZHN32599146.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x847da16fba8c32ef2f205151f17acd42b7dd74acf1de53d7f1a72c152930db6e. Chain 2 (Bitcoin): anchored in block 958461 (2026-07-17T23:18:11Z), 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/QZHN32599147.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x993f6c518244ad6937b263699950d75c08310f889113eddb14d7a380fcadc2e5. 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/QZHN32599148.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x701eeb9de9dabda70a6a1a9823354ace84eaffe9731335dd40e749ca7478e448. Chain 2 (Bitcoin): anchored in block 958738 (2026-07-19T16:08:25Z), 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/QZHN32599149.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3dd111d15e94b0867ba539d34e2230babf31095441692f0fffda72465e6fd7e3. 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/QZHN32599151.