Theodore Meir Bikel ( ; May 2, 1924 – July 21, 2015) was an Austrian-American actor, singer, and political activist. He made his stage debut in Tevye the Milkman in Mandatory Palestine, where he liv
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 0x6799250467bfdcdea700cf00bd5faa5b4754125cf6b93be068443c52f39b31ad. 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/d26be03e-fef7-4d74-8888-36fe13a2e794.json and https://artists.proofprofile.net/proofs/artist/d26be03e-fef7-4d74-8888-36fe13a2e794.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Songs Of Russia Old & New / Russian Gypsy
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 0xe567deb65581469ed15667b5fd1c50015c5e5ed0614aa679dbef8631cc6be8c0. Chain 2 (Bitcoin): anchored in block 958700 (2026-07-19T08:09:50Z), 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/USEE10501744.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0b887aa9f66fd66dd1ded46856f2baf7323149fe57f8300816289ea6aa8c87c4. Chain 2 (Bitcoin): anchored in block 958276 (2026-07-16T10:20:17Z), 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/USEE10501761.
Bravo Bikel - Theodore Bikel Town Hall Concert
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0ddfe2fadb15aa9d29a57f10027268d659961d65a7fafe2a4a18d0805ae4dbe1. Chain 2 (Bitcoin): anchored in block 956474 (2026-07-03T08:56:35Z), 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/USEE10300276.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4f244eee7a31eb57d077c4878b704d0d7be647f47ac5392d3f9d3ad24d62e8bb. 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/USEE10300279.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5114e96039ae483fd35ccb192a900b8be5e2d24a67973ba069d7d346d38232ce. 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/USEE10300280.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc1872218e738e3a69a5804e429b851cb76ed4b6967af377cc23d77c7a50db20b. Chain 2 (Bitcoin): anchored in block 959061 (2026-07-21T21:34:21Z), 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/USEE10701518.
Theodore Bikel Sings More Jewish Folk Songs
Theodore Bikel's Treasury of Yiddish Folk and Theatre Songs
In My Own Lifetime: 12 Musical Theater Classics
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xca2b8c09b85a8d526fbb079cdfaa8d5f66aa109f527bcde75082d7e17191ec53. Chain 2 (Bitcoin): anchored in block 958788 (2026-07-19T22:07:06Z), 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/USHM81062664.
A Young Man and a Maid / Theodore Bikel and Geula Gill Sing Folk Songs from Just About Anywhere
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xba30f4a8ff5c4c039419cb5432c48f9d020ce55904407ec0f8d7a106fd2e51f2. Chain 2 (Bitcoin): anchored in block 957065 (2026-07-07T16:43:21Z), 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/USEE10701510.