Alex Wurman (born October 5, 1966) is an American composer who hails from Chicago. He is best known for his film scores to March of the Penguins, Anchorman: The Legend of Ron Burgundy, Talladega Night
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 0x11d5a397d9c4a7864267b3e4f22ab29535669d32bddfbf46c97e62f347432c19. Chain 2 (Bitcoin): anchored in block 953714 (2026-06-15T00:43:59Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/7fd04fa9-ecc3-4154-a6d3-989280d839fc.json and https://artists.proofprofile.net/proofs/artist/7fd04fa9-ecc3-4154-a6d3-989280d839fc.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
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 0x5d9055d595b7a3573c5bc95554ea2a22b4b95566d1c22b29782bd3b8b1e62d0c. 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/TCAHO2369262.
The Promotion (Original Motion Picture Score)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x23fa3e01bd1a8ec0a9d67702504e158649111ed0a3881bd6575080ef31086b9b. 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/USLS50801506.
March of the Penguins (Original Motion Picture Soundtrack)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x25de9fc7a48dbec3b79abd480b78b635d1479fb4a7dfa6ce4b12a86a36963170. 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/US5940510137.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0ac954f42e4e7de3dce94ecdb1da0e305e9ad97d358edf8851cc044179278057. Chain 2 (Bitcoin): anchored in block 959109 (2026-07-22T07:21:40Z), 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/US5940510138.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x588b230b9ae1baabf93108f6216ff26f2cdba5e70dcaa9b42817750966cecdb7. 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/US5940510139.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe2e3826a3060e415b79a9a93ecbe444b0f6c78a50ba89756c10bd3771e735193. 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/US5940510140.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x39440225258d1e1950932bca8eea86d882ba9879971724e907bb084d2b837685. 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/US5940510141.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x579e71dbfbd1ca9e3d6081800f3fa3be371129235b2f3b0d32c50bfcf9c70c7d. Chain 2 (Bitcoin): anchored in block 959155 (2026-07-22T16:43:41Z), 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/US5940510142.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xce753faa68fe605ab92a594f14ac69946281f71cd09668e1b4a35297a985fe55. Chain 2 (Bitcoin): anchored in block 959144 (2026-07-22T15:38:35Z), 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/US5940510143.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2ccac077c0435e21889ac1c48ceeca14bf0ee5d3d1bd0e85b42be0173be2561b. 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/US5940510144.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x38e5fde1921be5c351921ac11aff6d356c6df6c1e5ae61f9e8b11ddb2c7a6e75. 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/US5940510145.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbb6839c77166c566af340801560ed51eaeb7553c5c8e9c86223773a7fd426a3b. 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/US5940510146.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0e5e623b63c17a5eaa62e57d90b8d1dc467edc84f3664ee89af98e08f268c393. Chain 2 (Bitcoin): anchored in block 959163 (2026-07-22T18:47:29Z), 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/US5940510147.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa2095d434a545f1b9f870a2633b5e42ec5273a50a0ee6e6ac4ac54819777d7b4. 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/US5940510148.
Unfinished Business (Original Motion Picture Soundtrack)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe565526ec50f8c8b84aeb5321f66b263f41a5b2763b8ccb4660dae4592474e32. Chain 2 (Bitcoin): anchored in block 960506 (2026-08-01T03:50:58Z), 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/USLS51546411.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x290f86b0f5ed6a166ab382c43636c8c045db064254d9503d5ce98324918b55f0. Chain 2 (Bitcoin): anchored in block 960494 (2026-08-01T01:44:32Z), 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/ISV530800102.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9e5ac295246392f256d271116c977847e8e4931e720ae9a82d6879cedffd394e. 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/USUR10001352.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc2d21236b2755c2fac522a646eefb11b5ba40146fb17961a995b9e29ab9e2d39. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/USUM71312055.
Younger & Younger (Original Motion Picture Soundtrack)