Alberto Mizrahi is an American cantor and tenor known as an interpreter of Jewish liturgical music and for performances that bridge cantorial, classical, and jazz traditions. He served for decades as
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 0x362294750f8e25e605b92abe0bce804fc9cd3880c9e723546f96100ba636e077. Chain 2 (Bitcoin): anchored in block 954342 (2026-06-19T03:22:39Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/8055bf0c-a508-4132-9ee0-d5a68a492f94.json and https://artists.proofprofile.net/proofs/artist/8055bf0c-a508-4132-9ee0-d5a68a492f94.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Schoenberg: Kol Nidre - Shostakovich: Suite on Verses of Michelangelo Buonarroti
Milken Archive of Jewish Music: The American Experience
Milken Archive Digital Vol. 4 Album 11: Festivals (Mo'adim) & Other Occasions on the Liturgical Calendar, Pt. 3
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 0x88575df8511e6699dbe76c7ab1c2a51a8c4e3d35f39cee73eb0fe83375e0de5f. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/HKI190955849.
Introducing The World Of American Jewish Music
Milken Archive Digital Vol. 3 Album 6: Seder t'fillot – Traditional & Contemporary Synagogue Services
Milken Archive Digital Vol. 3 Album 5: Seder t'fillot – Traditional & Contemporary Synagogue Services
Milken Archive Digital Volume 14, Album 4: Golden Voices in the Golden Land - The Great Age of Cantorial Art in America
Milken Archive Digital Volume 14, Album 3: Golden Voices in the Golden Land - The Great Age of Cantorial Art in America
Milken Archive Digital Volume 14, Album 2: Golden Voices in the Golden Land - The Great Age of Cantorial Art in America
Milken Archive Digital Vol. 4 Album 9: Cycle of Life in Synagogue & Home – Sabbath Day
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x607b932361df700fa1258a59c979a5b1a7f13d67ef709546fe86c0620997d898. 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/HKI190955790.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x35d19e46aa3c2dfcb065de7cd3e7aa0e3ccb3c29bc30034c4895ce40fa8516e6. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/HKI190955799.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4a5551c08aa455bde298224616bfd120954ada5f7aeff0284d3f38fa19109ac2. 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/HKI190955800.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc821584f06ad81cc3ee40c374fb2f7672a5fe71e9eaad7e9ad21e2cb5bb28f8e. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/USB8U1026675.
Taste of Eternity: A Musical Shabbat, Pt. 1 – Friday Night Service & Table Songs
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x299c72d9eddaa53117a552101c1215006a46fc4d651aa091f861c1a0f13c5cc5. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/USHM20563878.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7c09d4bc3d7c34ea141034954fe204a9ccd5808881ff65a6e568b0c2a0f4ea1b. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/USHM20563880.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x72ab2d74e36719e0c28b342115d3cdf0d466e1dd8415d53ad380509409d5a6aa. Chain 2 (Bitcoin): anchored in block 956349 (2026-07-02T11:34:59Z), 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/USCGH0677426.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x00ec1cd5655e210270734aa5b8f3118b338fe33298f5d850563ecc9e53099c30. 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/USCGH0677427.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5d013870e5b1aa5c28f52931a13f2560864d7787ea9aba08adc9ca968049ee5c. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/USCGH0677431.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1b34ffac3d82573168257cc4ed0fc9841b57de332bcf3b90eb82c3638b5a570b. Chain 2 (Bitcoin): anchored in block 957052 (2026-07-07T14:50:41Z), 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/USCGH0677434.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0dfd0df978ce391134027b8889c61e0bf6c25f40a5b08ea83d0976d638556ba9. Chain 2 (Bitcoin): anchored in block 960166 (2026-07-29T23:39:29Z), 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/USCGH0677433.
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 0xdadc38f2988ef814fa38fc3e4a2359171e5aafe68047bd817c84e66a4c52c35b. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/USHM81282393.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0c0055bbe3e7a49d981aadd9040ce3347f11bb5e235d9f3dba7719eaf25865e4. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/USGGF0610087.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf66111ea223e2e0092aef25c78ec7a3dc2f63763ff58b6bc4a8b38f74262fc25. Chain 2 (Bitcoin): anchored in block 960500 (2026-08-01T03:13:03Z), 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/USGGF0610083.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x929d5d0cd541f34658a24b2d427b9ac9318b0d15e5d774e5c2c25afc40b1fb4a. Chain 2 (Bitcoin): anchored in block 960441 (2026-07-31T17:29:52Z), 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/USGGF0610093.
Jewels, Vol. IV: A High Holy Days Music Sampler
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xba16d6b7ac21e2d448c8f5cf83bb5fb0e54c15e36e6b222d95447f1353dde8ce. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/USHM81453911.
The Birthday of the World, Pt. 2: Yom Kippur
Taste of Eternity: A Musical Shabbat, Pt. 2 – Saturday Morning Service
Lights! Celebrate Hanukkah Live in Concert
The Birthday of the World, Pt. 1: Rosh hashanah
Schoenfield: Klezmer Rondos - Trio - Wyner: Tants un Maysele - Golijov: Rocketekya
Ben-Amots: Celestial Dialogues / Hashkivenu / Shtetl Songs
Milken Archive Digital Volume 4, Cycle of Life in Synagogue and Home: Album 4, Funerals and Memorial Services