The Jim Yoshii Pile-Up is a 5-piece band formed in 1997 in Oakland, California. Named after a high school friend of the band, their highly textured sound spans the range from indie to post-rock. They
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 0xde10aafa528a7e873e9b337fdf60f0c3da5070f14ffc2bddd6c2a618234e78d0. Chain 2 (Bitcoin): anchored in block 953778 (2026-06-15T11:57:35Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/ab4287df-e738-4238-b848-cf7e74aca788.json and https://artists.proofprofile.net/proofs/artist/ab4287df-e738-4238-b848-cf7e74aca788.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 0xe534b40b4016219a6c505edc00f9fb10e785efe25acf87c6855469ce69048296. Chain 2 (Bitcoin): anchored in block 958839 (2026-07-20T07:01:59Z), 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/US2K70110071.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x28fe0e5e6d1bf4409d5a5c780ac69e93086f32c550be607f5eafbea0e3efdfd7. Chain 2 (Bitcoin): anchored in block 958761 (2026-07-19T17:49:48Z), 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/US2K70110072.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3966a4827561704462790134a359bd87a1b7e3e892f435fcd049ca0966126cb4. Chain 2 (Bitcoin): anchored in block 958422 (2026-07-17T13:35:31Z), 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/US2K70110073.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcbb5dc48dab0fc59a50d84d132aefc3e0d920c287ba451552836d6ecccf3e8da. Chain 2 (Bitcoin): anchored in block 958955 (2026-07-21T05:21:42Z), 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/US2K70110075.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x22e68e303b6a3be7166f9912b1bf08357506272cdb05afa1993429ef0399b7f7. Chain 2 (Bitcoin): anchored in block 958504 (2026-07-18T05:41:32Z), 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/US2K70510451.