Deborah Lynn Friedman (February 23, 1951 – January 9, 2011)Cohen, Debra Nussbaum, Debbie Friedman, Beloved Jewish Composer and Performer, Dead at 59, The Jewish Daily Forward, January 9, 2011Horn, Jor
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 0x5360f55d0a1c3d8a338cfded771e4633957c64bc5c953f7798cbda26194806e4. 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/a00c3e50-44c5-41e7-8a64-119c48d804b0.json and https://artists.proofprofile.net/proofs/artist/a00c3e50-44c5-41e7-8a64-119c48d804b0.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Debbie Friedman At Carnegie Hall (Disc 1)
Songs Of The Spirit: The Debbie Friedman Anthology
Milken Archive Digital Vol. 4 Album 9: Cycle of Life in Synagogue & Home – Sabbath Day
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 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.
72 Camerata of Highland Park Senior High School
Milken Archive Digital, Vol. 4 Album 7: Cycle of Life in Synagogue & Home – Sabbath Eve, Pt. 2, Individual Settings, Pt. 1
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9bbfe2f0dfa10cdec29a2edd23548d9a58f95a4e56e598b65b1091d5e21e4c56. 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/HKI190955468.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8a47355a439ba43cbdc071d68a5dbdd7d228d78a35c6c90c1e6370e16761a112. 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/HKI190955469.
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.
Milken Archive Digital Vol. 4 Album 11: Festivals (Mo'adim) & Other Occasions on the Liturgical Calendar, Pt. 3
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.
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 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 0x5d36e15c493845c776dfdfd329da18202ef22ff220e8c7ac66de45223a89db64. Chain 2 (Bitcoin): anchored in block 960138 (2026-07-29T19:35:34Z), 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/HKI190955459.
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 0x2872fc8e888a6212b256ea19ea63d0c05a1df3e4e102b6a0dbad3172ea2c9704. Chain 2 (Bitcoin): anchored in block 960111 (2026-07-29T13:21:01Z), 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/HKI190955470.
Milken Archive Digital, Vol. 4 Album 8: Cycle of Life in Synagogue & Home – Sabbath Eve, Pt. 2, Individual Settings, Pt. 2
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x85e89fae1985f0281f275228e7cfb26758a8bacfb7ae695e16aa030083553a1b. Chain 2 (Bitcoin): anchored in block 960138 (2026-07-29T19:35:34Z), 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/HKI190955481.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf6bcbacc2587e99cc4050b029c4a7200aa88b3008363589ce4b0463e3dd852b4. Chain 2 (Bitcoin): anchored in block 960144 (2026-07-29T21:09:47Z), 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/HKI190955798.
Laugh at All My Dreams (Arr. for Piano by Jeremy Siskind)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfb83a6af8c0c801d4eb8c6c9b18f8e00a30028bf268861872f4acb5a4e1904c3. Chain 2 (Bitcoin): anchored in block 960368 (2026-07-31T08:26:41Z), 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/NLE422301803.