Giora Feidman (; born 25 March 1936) is an Argentine-born Israeli clarinetist who specializes in klezmer music. He played in notable symphony orchestras before embarking on a solo career. Biography
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 0x13b6ee927a49b7aef5dc77b6343faa0499cea7fc998113354f9aeeb5dcdccbba. Chain 2 (Bitcoin): anchored in block 953423 (2026-06-12T21:20:00Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/c74c00c0-e599-4a49-a224-0a4380b59a65.json and https://artists.proofprofile.net/proofs/artist/c74c00c0-e599-4a49-a224-0a4380b59a65.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
The Art of Klezmer - Feidman Playing Klezmer Music by Issachar Miron
Ele Chomdo Libi - Ele Chomdo Libi (May the Heavens Rejoice) - Yossel Yossel: Ele Chomdo Libi - Yismechu Hashamayim [May the Heavens Rejoice] - Yossel Yossel
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 0x00ad651a4892c6d86245c6fb119961e7c53d82588e1203cfee5dc243da0ffa42. Chain 2 (Bitcoin): anchored in block 958216 (2026-07-16T00:00:34Z), 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/USASX0840501.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x500b81085aef9f1243ef691494a056c98fea593cf699af5b992f51e2a6cd7faa. Chain 2 (Bitcoin): anchored in block 956560 (2026-07-03T23:28:02Z), 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/USASX0840502.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe55962b18b1bb41b20413cd84b8690308504185cf295f2ed67aeefe397982d1f. Chain 2 (Bitcoin): anchored in block 958808 (2026-07-20T02:49:15Z), 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/USASX0840504.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7b7d1efc7235cc3a85b48f56da5abc3755601aaa7cb1e95c8ddd2d02a0366905. Chain 2 (Bitcoin): anchored in block 958708 (2026-07-19T09:08:25Z), 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/USASX0840505.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x856e8ffb963dcc9b5eadaf07d7d4b76e1a6a1d40b838a824c107ebecc251e5b1. Chain 2 (Bitcoin): anchored in block 958823 (2026-07-20T06:41:20Z), 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/USASX0840507.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfec55557ce9b03d812168e432842a535529a6d00d0909f0173d05e41680e7f29. Chain 2 (Bitcoin): anchored in block 956776 (2026-07-05T10:59:37Z), 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/DEYT92301473.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x01b88b6fc73f3424c118e6c13c46abe38fac8ae48044abdb5e8ce0f47a1e70a5. 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/DEYT92301472.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfec55557ce9b03d812168e432842a535529a6d00d0909f0173d05e41680e7f29. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), 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/DEYT92301473.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x26428fc6f82224a91723ef5115f2f3d735349a5139a4c450a90545bd81bd3ef9. Chain 2 (Bitcoin): anchored in block 958783 (2026-07-20T00:06:56Z), 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/DEYT92301475.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x44e5799658fadd33d56e11a89e45ebf65470068a6c5fd89f675c01ded650da1c. Chain 2 (Bitcoin): anchored in block 959008 (2026-07-21T14:52:10Z), 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/DEYT92301478.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x49fef567436ebdebc915fba8dd2221aac46f8ed14de9c58e105b7e8d4fc52858. Chain 2 (Bitcoin): anchored in block 956484 (2026-07-03T10:47:44Z), 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/DEYT92301116.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2364def567592c98737bb5374bf67de2dea3bb7b78ba796dcf478a279a044f8c. 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/DEYT92301126.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xebc36745520eb40fc1899337733910e527938206e9cde8cbdab78ef146737dc2. 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/DEYT92301115.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x702cf7265c297aedfad723ab35e08391d193911f0310286cfad161db0f9b0b01. Chain 2 (Bitcoin): anchored in block 958832 (2026-07-20T08:29:49Z), 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/DEYT92301117.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x074bfecec13c4eef96ed72ad82f01dbd1405ab10ead19259336a399dd27ac2b0. Chain 2 (Bitcoin): anchored in block 958357 (2026-07-17T03:33:42Z), 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/DEYT92301119.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3cd260ecb9c19535ded8e2ac59f85d57cb6ae712151d447cf1007eb70392f541. Chain 2 (Bitcoin): anchored in block 958357 (2026-07-17T03:33:42Z), 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/DEYT92301121.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x760fd001525e03f574d874b6c20b2cbfb24b6ac4948037a654452afecd62990d. Chain 2 (Bitcoin): anchored in block 958690 (2026-07-19T07:14:39Z), 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/DEYT92301123.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9e19e5edabbea556b93a199997f923494f4d67a77ef5312b6cc391a3603d5b84. Chain 2 (Bitcoin): anchored in block 956711 (2026-07-04T22:48:52Z), 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/DEYT92301124.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2364def567592c98737bb5374bf67de2dea3bb7b78ba796dcf478a279a044f8c. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/DEYT92301126.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xce4bc0a3db9ba733bec1a5fe6a27404c704e82efffec0f30b5f792867b58b892. 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/DEYT92301127.
The Incredible Clarinet (Remastered, 1995)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeb6f5ab36558bfd708d83b840b3268831512f9b373d91dc98f1540beabb266d8. Chain 2 (Bitcoin): anchored in block 958594 (2026-07-18T18:05:01Z), 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/DEYT92301378.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfc4fc313cae2d6f6597feb630ac3f666f2fb7e832d4e0b72b3f1d943be14aa6c. Chain 2 (Bitcoin): anchored in block 956742 (2026-07-05T05:07:15Z), 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/DEYT92301370.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0296c163f042875e1384a5609240a663a97f83d867e20e7a05b9f2da6666f401. 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/DEYT92301373.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1fb3cda80d15efcf7e456b702368bcf76130d17ba21ce917b64015673fe89a3e. Chain 2 (Bitcoin): anchored in block 956656 (2026-07-04T14:03:39Z), 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/DEYT92301375.
Let's Be Cheerful, Said the Rabbi - Remastered, 1995
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x49bff0e391f662a533e672ec9c137067b055fa39421fc56a7aed6573a2a9e33e. Chain 2 (Bitcoin): anchored in block 958601 (2026-07-18T19:27:02Z), 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/DEYT92301379.
Silence and Beyond (Feidman Plays Ora Bat Chaim)
After Silence and Beyond Now (Ora Bat Chaim Performs Her Music and Poetry)
Lilith - Neun Gesänge der Dunklen Liebe nach biblischen Szenen des Alten Testaments (Feidman in Bayreuth)
Giora Feidman: Rhapsody - Klezmer & More
The Art of Klezmer (Giora Feidman Playing Klezmer Music by Issachar Miron)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf52fa0045c5f1f8578d0cbcbf804863502c61d881f2fc6e8ef63b1b194889795. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/DEYT92301006.
Gershwin & the Klezmer (Giora Feidman Trio)
Bublitschki , Silk Night Gown , Vehaier Eineinu
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x200f63d239e2edbe1053aad05397eb8b759b5fbca5014132e542c853da8d2ba4. Chain 2 (Bitcoin): anchored in block 958736 (2026-07-19T15:46:03Z), 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/DEU241119986.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x33af5a8975699303bd7b7c7e3230e50c65fd1e430e9dffe1d61b1d36f1164031. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), 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/DEU241119988.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xac790fae66ceb623acf5722aaf8b953f40dbac20ad976e91288cf697ffd41e1a. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/DEU241119991.
Dances of the Soul (Music by Manny Katz)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbf6cdd8e8ad937688db2ea1ae853c964768ced9f07fba8bd671db27201e8e32e. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/DEYT92301049.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xce7fa815fe0d92a8442148aaae418750f1be9a120aa905d4c511527aa54f71c2. Chain 2 (Bitcoin): anchored in block 958853 (2026-07-20T11:09:21Z), 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/DEYT92301055.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9ba8edb7957dd622e12919db8d6f0c53e52906798b0cd4d768d9a473cc8c414f. Chain 2 (Bitcoin): anchored in block 956822 (2026-07-05T18:48:28Z), 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/DEYT92000017.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5d9f64ae9563e243041f3c32bc2cac434329c29d2047d2ba69b03f44c2173576. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), 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/DEYT92000018.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x442c3e783dfa3d69fc5f3527b794b6d25c5033ab7083f50491e0df7e5b74aa2b. Chain 2 (Bitcoin): anchored in block 958853 (2026-07-20T11:50:14Z), 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/DEYT92000032.