Don Gehman is an American record producer, engineer, and executive, best known for his work with John Mellencamp and Hootie & the Blowfish. AllMusic calls him one of "the most successful producers of
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 0x7e5a5688d0ace55515e2ac2993d7ac0cc06dae12d06a05a6b62c7d867a2e73b0. Chain 2 (Bitcoin): anchored in block 954549 (2026-06-20T10:56:20Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/a9f95c1b-1021-427a-9304-8b274ee07059.json and https://artists.proofprofile.net/proofs/artist/a9f95c1b-1021-427a-9304-8b274ee07059.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 0x03f3980b3e796e7be4f4c0122946600556cd7d20f5b586672812c9a0cbb2a814. 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/USAT20003403.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x07d719dce9991c2f99cca0f1dca2b4d4b18f08921db35e062181ffd2737a1141. 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/USAT20003404.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe8c5cae4ab14ed2f1fc1e8d153f09546903eba212b9274a8c8617e8632bcfcac. 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/USAT20003405.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc486b6ebbcaf6c3689445238e05e2199a84d01d838c136112a9c9ccc9c60a83f. 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/USAT20003406.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7218950647f20b9fa03e89eae6d370cac8d58ba133ee99f05cc22ba8ceb38c8c. 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/USAT20003407.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb6adbb52710b1518e2c0f777221330963b488f7d27544c71c1959ae9b7a8d11b. 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/USAT20003408.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7bd9b28ac3e1d1555dacd047872c99ecc8a3a742f19f50efbdceef42105b6a69. 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/USAT20003409.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x68e61a23c25fc1c6f19588ccea3bd060c388eb04534dcf6819f817709fd83347. 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/USAT20003410.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x76cf107a072d6b7292aee96539468380e12ea0942e305f27dbd42da084f936fa. 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/USAT20003411.
I Hope That I Don't Fall in Love with You
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x69e59cbf5318b9ea268b2e0c9b5f5662728f33853962963a70d1e167eb3355c6. 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/USAT20003412.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3fe1f54f385490cc3f5bc321f94714e3240a988ddc04c5ce7388dadbac33c1a6. 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/USAT20003413.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd80ca5d0cd5986be9e03c311ed9622fb4769e213bbee6db4498614b3652764fc. 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/USAT20003414.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x61e20bddec843ee2a7d2827e7d5387c22b67ac6d0c930368976ad8d2a0b3b62d. 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/USAT20003415.
Please, Please, Please Let Me Get What I Want
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9b38271a6c6479d3910e44905881a6525484eb3acccf142de7f368f59c52a85e. 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/USAT20003416.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6de8dbcfcf95a42b19ca1427e408879a59ebd5d624db79a266e5286437c066ea. 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/USAT20003417.
15 Vocalists Who Deseved To Be Superstars Vol. 2
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xee06c6743a04fa52b257de7b8e54e933b3e360d2d898e8a938422334433e0dbc. 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/USUM71600808.