California Wives are an American band from Chicago, formed in 2009. The band released its debut full-length CD, Art History, on Vagrant Records in October 2012. Members Current Jayson Kramer - vocals
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 0x43b085fe4ac942bf0a103a80faeedee3561d84f66ac8ac9f9eb909a0d2e40ab6. Chain 2 (Bitcoin): anchored in block 953714 (2026-06-15T00:43:59Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/81e6a6ac-8823-4331-9e9d-7192df42fbb1.json and https://artists.proofprofile.net/proofs/artist/81e6a6ac-8823-4331-9e9d-7192df42fbb1.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 0xc928273b181f87c3f4c788347cf7e1adeb3eee42c40b76b50a6a0b1082f6375d. Chain 2 (Bitcoin): anchored in block 958959 (2026-07-21T03:51:22Z), 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/USVR91274302.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6ce0e0e4846e0e1cd40acee6231a432e39a03fc0bf42ebe1ff2ba0ea66a5c51f. Chain 2 (Bitcoin): anchored in block 958761 (2026-07-19T20:19:51Z), 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/USVR91274303.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3cf06873db562011c613e31fb8c935d41196ab483457717f8545581fa8cf5a1c. Chain 2 (Bitcoin): anchored in block 956405 (2026-07-17T04:30:02Z), 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/USVR91274307.