The Klezmorim, founded in Berkeley, California, in 1975, was the world's first klezmer revival band, widely credited with spearheading the global renaissance of klezmer (Eastern European Yiddish instr
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 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 0x0fd35527f43ebfceb26e433aed53174da6f1b35015734679cdeecd7355911df3. Chain 2 (Bitcoin): anchored in block 953724 (2026-06-15T01:43:13Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/8ae968d6-2f4f-44db-9778-d8e78ca2a1b4.json and https://artists.proofprofile.net/proofs/artist/8ae968d6-2f4f-44db-9778-d8e78ca2a1b4.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Jazz-Babies Of The Ukraine (Live At The Odeon Theatre, Amsterdam, Netherlands / August 13-16, 1986)
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 0x6498511e972cddcfa4c1767b2150014afdb4c9c3c23d38e230e0caedfae88f1f. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), 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/USAP38930901.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3ba3914e713d2629f2c18b900ab6f10733d6a96104267512edb17c6a040482ab. Chain 2 (Bitcoin): anchored in block 958212 (2026-07-15T23:25:50Z), 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/USAP38930903.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x42af348378d93922bdd3d84677ad16f6db354316f705282ffee92e024990f562. Chain 2 (Bitcoin): anchored in block 956856 (2026-07-06T01:25:57Z), 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/USAP38930907.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x13e08a872c2dc3720d618db7f0de2186ab55ef81a8edba7454ed18169231ab88. Chain 2 (Bitcoin): anchored in block 958340 (2026-07-17T00:53:26Z), 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/USAP38930909.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3e85d3c7842158d631b5a89ad7ee31f3bda664bfeb452e0a0416de6ac2a8610c. Chain 2 (Bitcoin): anchored in block 958224 (2026-07-16T02:28:43Z), 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/USAP38930911.
Egyptian Fantasy (エジプトの幻想)（「吉田類の酒場放浪記」オープニング曲）