Alexander Georg Wurz (; born 15 February 1974) is an Austrian former racing driver, motorsport executive and businessman, who competed in Formula One between and . In endurance racing, Wurz is a two-
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 0x576fad5bd15ea61002fa69139d8d1b060f8c1a79d3c431c9984d5b6455a94ad2. Chain 2 (Bitcoin): anchored in block 953768 (2026-06-15T09:30:06Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/bf348bf2-56ed-4539-b157-e01197059f2f.json and https://artists.proofprofile.net/proofs/artist/bf348bf2-56ed-4539-b157-e01197059f2f.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
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3739bcefdaccf41bc465a49f52dd38dcb81bfc0ee09ffeb50e8c469c1e6560d9. Chain 2 (Bitcoin): anchored in block 958576 (2026-07-18T16:22:28Z), 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/DED811670400.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9cae333dacaf0ca8d095f6e6ea8ed3c99e71f7850e40be43b4f2d3ee3f1c87f9. Chain 2 (Bitcoin): anchored in block 957073 (2026-07-07T18:39:05Z), 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/DELJ82035164.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x45c3f5fa3f7444855fff24dc18baf343243029ddcd17886d4578d230b924dd4d. 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/DELJ82035166.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x289eeef0e42db76e076f77f7b5984c1e61cfc13ed4a89fda816b3d581f7040d8. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/DELJ82035168.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5f444efcde1ecae053b888320264199b0eff68ea0a06eae0fd35545d1d0043b9. Chain 2 (Bitcoin): anchored in block 957819 (2026-07-13T07:53:33Z), 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/DELJ82035172.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeb0edd0e9a166b744f458e2587221c157f2cd4fe9160ca71250c6d7368f79989. 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/DELJ82035174.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfb12c5435f03fe749c098b034f60372e88b3148eacec869b99e914c6684c5ab9. 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/DELJ82035175.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbd92bffc1afa2e5fc635b6eddb75ef04b1b81135c87c07f2f981cadaac66bcec. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/DELJ82035176.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe58ff15c68c02b74ba39ddf7dfd6578add46c9b40c285bd7902aba5c08c793a4. 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/DELJ82035177.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8373d8c10c028d8cc6a8af3ede5d7bed445515247b1192012023e49e29ed4420. Chain 2 (Bitcoin): anchored in block 960455 (2026-07-31T19:53:13Z), 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/DELJ82035165.
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 0x7bec487920a7035b9dd97f2db53156c40c156ea9780a17afbc8d29ae2c243f50. Chain 2 (Bitcoin): anchored in block 960327 (2026-07-31T00:26:26Z), 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/DELJ82035167.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x517f545b501bf87881f4c2169562a7fc5ace4cc60565c57e2dd6faaa1838469a. Chain 2 (Bitcoin): anchored in block 960473 (2026-07-31T22:27:44Z), 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/DELJ82035170.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x223c81689a202c88f3df46e2778c8809a46443cdbde0fcecabd08b99c707409c. Chain 2 (Bitcoin): anchored in block 960418 (2026-07-31T15:20:15Z), 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/DELJ82035173.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcf1dad3625b0c2dc75d333b27ef3838a19a0369378ec098e88eb0c43157915af. Chain 2 (Bitcoin): anchored in block 960291 (2026-07-30T18:23:33Z), 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/DELJ82035178.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9b4572fa9c0c3bc66a2c01c5bfbd58efdc3ce853c9ec366b6230592a0c689224. Chain 2 (Bitcoin): anchored in block 958838 (2026-07-20T09:28:49Z), 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/DEZC62468591.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfefdbcd4863f47f75c9036ea2918afab31201b4a4bec14af8b3373b7df8a5203. 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/ATDD71900011.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4c43b3ddd0ffd07a2fa506e3952e09cadc8ad67a9cae210204dcb53b4035ef16. 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/ATEW52301305.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2b4074c270b138d21a4d140fae210311cc330950c8a32d2cd01b1b963883610c. 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/ATEW52301320.