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 0x03914c8bae932c5a3771b39a251f279d25fb01a34826e57335a3e02ad7f7272e. 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/f905ea54-a434-4550-8bc5-fb95e1a4d684.json and https://artists.proofprofile.net/proofs/artist/f905ea54-a434-4550-8bc5-fb95e1a4d684.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 → 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 0x8d7a24510ac8d9c1da3ede70e076e4998d3549cbd008b771b93e528a9d60ebf9. Chain 2 (Bitcoin): anchored in block 957638 (2026-07-12T01:56:41Z), 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/GX8LE2333656.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x57e49cb8601f5e0f20dcd1d6cfbdb6d1e23cf53b8a34dda7f013a95039bd7d95. Chain 2 (Bitcoin): anchored in block 958300 (2026-07-16T16:14:30Z), 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/QZHNC2467675.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6496eaefe6a27f2667462b716f731ef4c590769e61c72c131e2318f4c379bfed. Chain 2 (Bitcoin): anchored in block 958157 (2026-07-15T15:48:37Z), 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/QZHNC2467676.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf9161c15ae10d615bfa61c5e67ea49e39b221119fc103bdc6d8aed038ba47c01. 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/QZTBA2418653.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6f4bbc011a8ef9a3f1dc587c7f05a3c93e218e23ee2c14b8f8a9ecd6caa26171. Chain 2 (Bitcoin): anchored in block 956656 (2026-07-04T14:03:39Z), 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/QZS7J2444223.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6b462fe94c4d3322db6eebff50f176ddd15bd84f42c260df351acc1718aaeab8. Chain 2 (Bitcoin): anchored in block 958690 (2026-07-19T07:14:39Z), 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/QZZ8B2452813.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2f9aeb036f9b2dff537b42cafecb78a9549e09ea28ea6169a8a9208c0e11b93a. 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/QZZ8B2438415.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x576291d15ba112fe656109bc71e37ca75392a7e389b1ad08e15c46e6d2dac4bf. Chain 2 (Bitcoin): anchored in block 958388 (2026-07-17T09:14:21Z), 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/QZZ8B2452848.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xec83dcd68459f8bed8fc703eed760b83d1f498d4f259231f3921134951a1ccf3. Chain 2 (Bitcoin): anchored in block 959031 (2026-07-21T18:49:23Z), 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/QZMEN2405387.
my dream profession would be a park groundskeeper in regular show
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x18385b6f6b34c8ad832feb5d626965377076a3a297918b950a4e24cceb1ee941. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), 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/QZZ8B2452857.