Matt Crocker is a Welsh soccer administrator who is the technical director for the United States Soccer Federation. He was named to the role on April 25, 2023, and began working for U.S. Soccer full-t
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 0xda67ab7284f3b81ff23cc378e97a13541f6ff375204f200514ae881e5fa1c958. 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/33cffcce-19b3-4884-a24d-42f9add69022.json and https://artists.proofprofile.net/proofs/artist/33cffcce-19b3-4884-a24d-42f9add69022.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 0x0bdc20a8228cadfb4ba3bcba12f90591195277f0fdf029ca1d88031eee6f6ffb. 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/QMRB32200063.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1e465384b0c8114184a821b8bc26c0b00a614b40810e7c8bde1af3b49cf4026d. 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/AUHS02215165.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1099a0a8521fe7234ddbc1289c26a1b4b92777e26789fb77aa458e1b37892572. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/AUHS02215154.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfd015656eeceeadc250c591094ca8905f4d664f990f1b80806ccf6d7b2f895d6. 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/AUHS02215170.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x06ac7409000dc7323e9ed79f4cc76be8aa3d52a1f5c7e58ca9c23d16c0c6011c. 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/AUHS01912192.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2f6fd2772d872dc8e8630eae0ae81080f4776fe597623783eeb11e77a00615f1. 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/AUHS01912195.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9392e222baf54fe9776b3a1764beac22454ff20562634d612fb98cfc050f149a. 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/AUHS01811226.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc50016f2d5a7aade04bdd33a66598f507eb1c69776e9ccf5f931425348644024. 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/AUHS01912337.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x72edf14e48e34a101510786303007ea16d0a4c6cfacb988ab615466cbc1a30a9. 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/AUHS01912338.
Wonder - Live from Madison Square Garden
The People Tour: Live from Madison Square Garden
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe5b22fb06b6a0756f0b66e9d1a50618f2ba1d129a894bfb3c213978fc2237c1f. 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/AUHS01912763.
As You Find Me - Live from Madison Square Garden
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x10cdd385a47486249d75bcdcc7a67c817bced6209b95b33ea016b9359f6f1330. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/AUHS01912769.
Rain / Reign - Live from Madison Square Garden
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1464d1e313190c607368f183678b093e6d9912eab4e208710a1d69fa1367dc3e. 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/AUHS01912773.
Starts and Ends - Live from Madison Square Garden
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x61764cdf2653d56808111a9c126ecb9bbba2f41a95d536cf879390f26f15667f. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/AUHS01912775.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1e465384b0c8114184a821b8bc26c0b00a614b40810e7c8bde1af3b49cf4026d. 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/AUHS02215165.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1099a0a8521fe7234ddbc1289c26a1b4b92777e26789fb77aa458e1b37892572. 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/AUHS02215154.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfd015656eeceeadc250c591094ca8905f4d664f990f1b80806ccf6d7b2f895d6. 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/AUHS02215170.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4f12e5745ca258ea929242a5d65a1cabb328ef2db489bd22e3a033df32358f08. 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/AUHS01507447.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe2b06133d5bfaa41f8362f05ba159d1d8226f8b29e7dfa5f6c0f9645fcf7dc0a. 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/USA4N1400463.