Lifer is a person sentenced to life imprisonment; also a person who makes a career of one of the armed forces, or another profession; or a person who has made a lifelong commitment (as to a way of lif
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 0xc09f4483965d84f702ac32474f189d8c77960ce689dc957333b62b0eab8049cc. 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/c19c9071-ea37-4474-a1f1-4867515ef9e0.json and https://artists.proofprofile.net/proofs/artist/c19c9071-ea37-4474-a1f1-4867515ef9e0.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 0x7429187055f20fcd322923e6501c79ae0a27d3a758abc8951ca7049bd120026a. Chain 2 (Bitcoin): anchored in block 958319 (2026-07-16T22:03:28Z), 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/USUR10110318.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf7d6a3879b0d6a6b69e73c9160566b6c0c55c7e4a0c12512388f04fc688783e9. Chain 2 (Bitcoin): anchored in block 956639 (2026-07-04T11:19:20Z), 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/USUR10110319.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7eba2493be71457731537bfb3648bb09741e8c33a03eef7878e2d810de89bd1e. 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/USUR10110320.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfcd44b193fcd9103144a0d9a4194caf130812ab1445944e40ee83cc30eea91fe. Chain 2 (Bitcoin): anchored in block 958607 (2026-07-18T21:01:11Z), 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/USUR10110321.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x778ff9de7eef03c21a2e625637313412331886f2becabf847013312deb2e4649. Chain 2 (Bitcoin): anchored in block 956728 (2026-07-05T01:43:49Z), 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/USUR10110322.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4e99b30dd7d02ef71759ff64b56be6945311c2fed40c3132f45a2a949a163c06. 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/USUR10110323.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x17b8a541665c9fb2c514178fc3aed16ba90e11e4a973fd47b160086399f27d16. Chain 2 (Bitcoin): anchored in block 956738 (2026-07-05T04:47:21Z), 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/USUR10110324.