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 0x72a6edd58c2cb67ad001ae22a14d76baa7030e1617ebe65b66eb87379ddd2912. Chain 2 (Bitcoin): anchored in block 953742 (2026-06-15T04:47:56Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/8adfeea8-a428-4d76-b943-9fcbf627e838.json and https://artists.proofprofile.net/proofs/artist/8adfeea8-a428-4d76-b943-9fcbf627e838.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Drive The Cold Winter Away - Traditional
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 0xf50c39eca6af3fa2570bcf209b596a76ed2a0b619c7d001d23c79f401ed1d3e9. Chain 2 (Bitcoin): anchored in block 958985 (2026-07-21T08:39:15Z), 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/USHM80487585.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x08d3575e3f352b8267b81c66df313c6a45b3410ec1951c3718ca32e3c3c693da. Chain 2 (Bitcoin): anchored in block 958444 (2026-07-17T19:12:23Z), 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/USHM80487594.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9f7830a8aa54bf256337947683911a1b19e80e4be8ffb9f8c8bd22231d8e0367. 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/USCGH0710522.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5c49b04db7de38dcd78430a32db6afa15f259b89a13acced585e4618c12b5de7. 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/USCGH0710526.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcc3243e9c111e74bbb6b03397e549c97561acc1e2b18be57db63d868de445a9f. Chain 2 (Bitcoin): anchored in block 956349 (2026-07-02T11:34:59Z), 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/USCGH0710531.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaa15109c7227060f63cf9d98d683febb4ecccc2f92bbd5b9ed7ef2c878fb6e57. 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/USCGH0710533.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe23f51bfdf70ba04a6ee3eb5f686c4abd246869734eba01fc06a170562ca3e5e. Chain 2 (Bitcoin): anchored in block 960170 (2026-07-29T23:52:38Z), 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/USCGH0710523.
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 Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf1f1d9ec9ed57127e8423dae62b4a085c51be8badadfcb7f1a252be5870e3512. Chain 2 (Bitcoin): anchored in block 960161 (2026-07-29T22:51:26Z), 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/USCGH0710524.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc15607db7591dcffa9beb2aded764a98a8552a816c9d0b798d1a8e62b93a22cc. Chain 2 (Bitcoin): anchored in block 960144 (2026-07-29T21:09:47Z), 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/USCGH0710525.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2da456d83b5b89a148fb7d7af1018b71e113e04c412103b08c3ec8c2fd5a58fd. Chain 2 (Bitcoin): anchored in block 960185 (2026-07-30T01:32:48Z), 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/USCGH0710527.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x31021633eacc2e324a7886f5e7772a892e2f2095a55a14a12ba8bffeb2b80049. Chain 2 (Bitcoin): anchored in block 960144 (2026-07-29T21:09:47Z), 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/USCGH0710528.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x84ab2ea3f2cd5dcfef4509cd88e0c52c1fc4db27c1e94b94a60ca05ce662f6b2. Chain 2 (Bitcoin): anchored in block 960203 (2026-07-30T03:35:13Z), 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/USCGH0710529.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x51d75aa5852e5eddbef7aec0dfb27e8f54fa4dce3facb96421cd6e83666c6259. Chain 2 (Bitcoin): anchored in block 960387 (2026-07-31T10:06:30Z), 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/USCGH0710530.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf483a66c2790225a95f99852a83e95f0a145ad281da23e3254299fdbb17c76d2. Chain 2 (Bitcoin): anchored in block 960273 (2026-07-30T15:42:38Z), 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/USCGH0710532.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa9d897f8f965d4dcd309910ef50630c02b947d79c82d6be380e042580fcfe702. Chain 2 (Bitcoin): anchored in block 960166 (2026-07-29T23:39:29Z), 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/USCGH0710534.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2a071f0b19fb429f90defb1888b82b28df33701be02a6489f2cbd9c6ea8178fb. Chain 2 (Bitcoin): anchored in block 958544 (2026-07-18T12:14:37Z), 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/USCGH0712350.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xce001633defe54fa02e37146fc2f4154ead8a3f5c7dd442f43608f490582578b. Chain 2 (Bitcoin): anchored in block 958122 (2026-07-15T10:59:30Z), 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/USCGH0712354.