Peter Friedman (born April 24, 1949) is an American stage, film, and television actor. He made his Broadway debut in the Eugene O'Neill play The Great God Brown in 1972. His other Broadway credits inc
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 0x80405acb4e1adefde3747ca92912f5c1d102a6ac2b4ababf3d7b05f5ae822efb. 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/32af6221-cd24-4797-a667-80ce05f5d620.json and https://artists.proofprofile.net/proofs/artist/32af6221-cd24-4797-a667-80ce05f5d620.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Original Broadway Cast of Ragtime: The Musical
Ragtime: The Musical (Original Broadway Cast Recording)
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 0xabbd873157a9c01931a95afb4c614210cc3d851c71a460ae7f2d4e57a46e3f4d. 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/USBC19800931.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe65830649b3a8c85919ed81123842cfb40f8cb81bafaf6962693e6caa9a4459c. 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/USBC19800934.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xedc1f6319042b92d69765d07b2712ca9e687501ad103a766f1e474c4c474e791. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/USBC19800935.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8673561fc96db62762169c4a81ebe661ee0580dc8c6cec83aeef13caf2dcbb17. 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/USBC19800939.
The Night that Goldman Spoke at Union Square
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9061b80917e14cd9a0b9d67823dc4d4456682bccfa0a03f57c4aebd6a640db1c. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/USBC19800944.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd7080af3968dd0f364b35a1446031dc34b61169e8e3e32fc149298d319d48645. 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/USBC19800945.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x75ae988a25b31cf8ee3cb8daebac537031a243b89a37fe8e0e7a2bbd5e0ac571. 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/USBC19800949.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x18b6eda3ef74265be88ea2e51646fdead7c4553ff6c2444aa1f488dc28a5012b. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/USBC19800957.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2b150ab960d4f545b1b1fec20bf766bc939dd8570431698a2f25ecacd8e968c5. 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/USBC19800958.
Fly By Night (Original Off-Broadway Cast Recording)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0645a95337189172cc934c4ea519e0bb977e5e23273fbdb54147b9350a0b1c3e. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/US6W61570100.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x176bbc077ce18e625d77fd7245a77aceefa5090d6bfc8f65bdf4fe5430d274ba. 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/US6W61570113.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb7b1f65b8d8f3bc91d915425de1d76b1951949cb2637abb894e9d931f151fac7. 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/US6W61570115.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x35807d882b1b8e26de698390fe7e6ffbd18fb10a72d30f136850a5707a68f940. Chain 2 (Bitcoin): anchored in block 960117 (2026-07-29T14:28:24Z), 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/US6W61570116.
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