Adam Carter Steffey (born November 24, 1965) is an American mandolin player, best known for playing in the bluegrass and old-time styles. He spent time as a member of bands such as Alison Krauss & Uni
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 0x88ba808fac337e1aebe7a497edc0f38d58c377a077c4279aeadc76f429667a43. 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/5adbb4ec-1488-45da-8f5a-c1250e1cc884.json and https://artists.proofprofile.net/proofs/artist/5adbb4ec-1488-45da-8f5a-c1250e1cc884.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 0xcc04494e6ff6af0fce9ad3a3a00dceed71b6baee384484dd85e6c3e80e7e5bff. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), 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/USETB0611166.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x321b390bd36d0478e2173ac47b1508dbb7c739d2a5e5c0222bcab76664a94bf3. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), 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/USSH50901140.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2a7cdc1fd024d822d4af68600350ab91b82fb0ac0904f71121ee00fa74dc572b. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), 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/USSH50901142.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa2d21082d8b4b12484ba0a983546024b4721145a7e50447e9f9fcd584b5c542f. Chain 2 (Bitcoin): anchored in block 957620 (2026-07-11T22:32:56Z), 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/USSH50901143.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfa9bfdb9df8eba497668298687d455c259e610f98bd79dc3febcf5511dcba185. Chain 2 (Bitcoin): anchored in block 958153 (2026-07-15T12:03:04Z), 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/USSH50901144.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc9242c23f72dece2074d556fee3dd7eeb670e66850599b3702b0186df6c6f0d9. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), 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/USETB1300183.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa096c192b34f33dd2914ba2beabc002b550f517a8f42e2d4719f194f6994f2e9. Chain 2 (Bitcoin): anchored in block 958340 (2026-07-17T00:53:26Z), 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/USETB1300184.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf42019722cc41e13f98e65eb14f8bad5a4f0a509b08b73c8efd06dda221c1859. Chain 2 (Bitcoin): anchored in block 956856 (2026-07-06T01:25:57Z), 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/USETB1300186.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x934ededb30b14ad971c6f544c9766a4de6d119e38dc1133ad478bdecf13bd401. Chain 2 (Bitcoin): anchored in block 959043 (2026-07-21T18:40:26Z), 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/USETB1300189.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9b5a319f242ca757abd81eda83923f3118aee71d850a401a55e23fbfedf1c158. Chain 2 (Bitcoin): anchored in block 958436 (2026-07-17T16:42:22Z), 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/USETB1300190.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9fafb0a8468987e35ff82d51f5ed714571f37ed8ed668e519ee7129617b3e063. Chain 2 (Bitcoin): anchored in block 958689 (2026-07-19T07:11:11Z), 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/USETB1300192.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb77108adc292037c8cda7a9ae4e6062810baaabefd89896994805226ec07106e. Chain 2 (Bitcoin): anchored in block 958388 (2026-07-17T09:14:21Z), 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/USETB1600478.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc662c7cc4e7ebf303c94447d820ab36258f9016022b86797cd3267cd7e54bb5a. Chain 2 (Bitcoin): anchored in block 957620 (2026-07-11T22:32:56Z), 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/USETB1600479.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4c833e9c54be76808a8eb77e295264fe06eaee86f3e7d29dcab22aba7fea7039. Chain 2 (Bitcoin): anchored in block 957608 (2026-07-11T21:00:50Z), 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/USETB1600484.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa6a48c01c2bf585d4e9470f4f13813ae705bd2b0125dbb616d1c61e14f085e83. Chain 2 (Bitcoin): anchored in block 958300 (2026-07-16T16:14:30Z), 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/USETB1600485.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa18b505a7c7c7731c6709b4b8b10977e962192b373b2a837e986c3eb3727bff0. Chain 2 (Bitcoin): anchored in block 958444 (2026-07-17T19:12:23Z), 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/USETB1600486.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x465c982fe23165b5558fc1a453dd34f1970f8577bb2168e90128f3404645a821. 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/USA560514824.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd300b875b920ebf9a6f513f48c955c188e45c9b340a42cf0b27e2f43e994fcd1. Chain 2 (Bitcoin): anchored in block 960254 (2026-07-30T12:06:10Z), 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/USA560514825.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x665ef3760bea145ca2856d667d701af9f8d2044100d7ce1d44c6215f02b6fcac. 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/USA560514826.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2865b24b0039067731e7bcba285866095604c540c9bffd69413f4e85d5a7a38f. 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/USA560514827.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xea075ee7b395a9e4a51fde53423c02c62f078cfe8936140cd5f957e495261921. Chain 2 (Bitcoin): anchored in block 956889 (2026-07-06T06:56:49Z), 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/USA560514828.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x39d079d2a29c6655d4aa28c142e8fe38f7676ccc6ad69e329f80378ff30be20a. 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/USA560514829.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb32eb35d76d4e05b590f366ca6c9196a334161d1fb90c2ebeaff8cbd39004886. 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/USA560514830.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa8b9de0ea0b2bad5cebe8f1daa106767365094335e9a93f88e308070b0c67a81. Chain 2 (Bitcoin): anchored in block 959152 (2026-07-22T16:23:52Z), 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/USA560514831.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3cc7169867583e0726f8dab56c296aafce94fee5ed5d17057eadf0eb29d7a761. 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/USA560514832.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa8a118890b42e4576c861da4af9aa40b86362fb49562f36d731dad1b4f321147. Chain 2 (Bitcoin): anchored in block 960340 (2026-07-31T03:15:04Z), 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/USA560514833.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe9592476a39ef496152d1cd3e0954032d3f577952ac1e60f147883b773118332. Chain 2 (Bitcoin): anchored in block 960177 (2026-07-30T00:21:01Z), 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/USA560514834.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x309e939b9fa77135a025fef4222649a8401618f3b8c3e3130fd6ed5c2092b310. Chain 2 (Bitcoin): anchored in block 960225 (2026-07-30T08:04:30Z), 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/USA560514835.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbd57eaa8c0fa7b77340900e10f3e1e31f7963989508cc0da0ac71ee9c43389ed. Chain 2 (Bitcoin): anchored in block 960376 (2026-07-31T09:09:19Z), 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/USA560515734.