Patrick Warren (born March 26, 1957) is an American musician, composer, and record producer. He is known for his work on the films Magnolia, Fifty Shades of Grey, Boogie Nights and Red State, as well
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 0xe53dfd48d621009a8f9b2cdb79f540113bb6500ad98b8532ac40f122eaad4f52. 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/d1770fc4-13ef-4a22-8197-d6c14c7035d2.json and https://artists.proofprofile.net/proofs/artist/d1770fc4-13ef-4a22-8197-d6c14c7035d2.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Mo: Season 2 (Soundtrack from the Netflix Series)
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 0x841565bf0b2097943b15667f03fa3c0625cdb7ec71b90ee6101c4220206c25f0. 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/QZ8BZ2511904.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xae38adaa7bcd56480eaeca754c5e49e8e8514ebe4ba88979bc501bf05bedc294. 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/QZ8BZ2511905.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1ff4e675c7e2cb1007f40be0b08fdbd96aea5dccf9e5d9d30fd2c6e3cea3334a. 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/QZ8BZ2511906.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8961774d95ba9c1bbdc2358b8f4f884fea25b419f70f65abd2816be257228f7e. 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/QZ8BZ2511907.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc873563dcb371999f0a966c7ecf42ce173e98a2886bb477001e1809ec9cf02e2. 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/QZ8BZ2511908.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2501fd705c67bb1acacd919b32b151bb7b97adadba8982240a3025eca5eee062. 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/QZ8BZ2511909.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbd23d959196351586fe22473f28dd4662aaab4fc415657a01e726ace4c1d65f4. 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/QZ8BZ2511910.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x86b03cd9646d39aa89852bc8e402a2d80d9bcb4759f12d52476c0c9026fb5def. 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/QZ8BZ2511911.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaa774d522931ead17354c2320d6e4d4806724eeb66aeac0ecffc1c11df3e5dcf. 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/QZ8BZ2511912.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe8b3361dd5525c29ea8cc98d1295ebdf0f52d16cf5a8692270af51d915f9cdcb. 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/QZ8BZ2511913.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd4d6c195e35b97d3f0430ca23d76b44acbe997df8ac99ebd2f53fefe8c07b4b0. 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/QZ8BZ2511914.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa295ddf6dc8844561903f09d90c906ce94134af714c867d755eab417efdab351. 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/QZ8BZ2511915.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3e3ba330f4f2f1d0aec972e50150469e9c3dfaf71676eafa9b2bc967d6725fe5. 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/QZ8BZ2511916.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x38441a960436c70abcb2fbc7e00ea7c3cf9e5bea759dbc0e83113f5f68677c13. 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/QZ8BZ2511917.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x09cf0eb44c5d2c4d83f64982f2ec3c858a67b18727958df92b1a2c0c0020ed1d. 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/QZ8BZ2511918.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe885261bb3003a91364880cfc3f6d1674b938d25178233e19bffc4d76191265b. 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/QZ8BZ2511919.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x72c9e569ca67c8af4ebd0bfe248d0f3232d45bbeed255c55908e576aa8530b73. 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/QZ8BZ2511920.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd7236ed190660154099eec525d1aed9a47ddd26dac42e20b44be02f226ff3efe. 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/QZ8BZ2511921.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x13b46b629da477b77138ed9f72c89dd35fedec35e1939fe4e0447cd0dbd349e7. 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/QZ8BZ2511922.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x338e8221775b1cf5bad9ff21e83660d97917527d78db6ec2b22222cba2c1d27b. 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/QZ8BZ2511923.