Martin Sexton (born March 2, 1966) is an American singer-songwriter and music producer. Early life Born in 1966, Sexton grew up in Syracuse, New York, the tenth of twelve children in a working cla
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 0xee47f221d11635bd63695868f4d237f04cf1167b9ffe737c92eeb4e05077c023. 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/0aa79bb5-af24-4aee-89e2-24f410469e10.json and https://artists.proofprofile.net/proofs/artist/0aa79bb5-af24-4aee-89e2-24f410469e10.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 0x5a70549a25cdb2c05a6141aaadb174e08fccce2bfe12957e80d45095bc7a323d. 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/USA2B9215801.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd000b96bfde259c23b5aaf34416db05685b56c0e18b8925e413de9e25aede35c. 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/USA2B9215802.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3e4f8977583866c348271d22fd8799a6ec27cd3f3dc3085f976b503f7fb8ecf4. Chain 2 (Bitcoin): anchored in block 958931 (2026-07-20T21:15:01Z), 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/USA2B9215810.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x093ddd99e56f3fbd658076f93c56b6afdc15c46f85b584a728c0ac292b271d61. Chain 2 (Bitcoin): anchored in block 958256 (2026-07-16T07:22:18Z), 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/USA2B9615804.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdae5200640e1f0b82404d0960c4ca39113c87ed1def52fa946396e6f3cf82e31. Chain 2 (Bitcoin): anchored in block 958931 (2026-07-20T21:15:01Z), 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/USA2B9615805.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf3185b34a3641a19f424e7f2ad2d9ac5f58996a4dc2f30b41b5c6738481049cb. Chain 2 (Bitcoin): anchored in block 958245 (2026-07-16T05:50:22Z), 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/USA2B9615807.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe19a8739bdf98a84afad5eb45b895fb7dc28f3081411d7484cfa543bf7108cdd. 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/USA2B9615808.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x819440601b10861d18b615d1c5266a11cf5b6735ebcae3a97a2794a26c1d1dae. Chain 2 (Bitcoin): anchored in block 958716 (2026-07-19T10:15:55Z), 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/USA2B9615809.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3384bb9f6329666d6ce9c583d80b5d83c544bdcf0fb053ffd4edf5db638acb17. Chain 2 (Bitcoin): anchored in block 957676 (2026-07-12T08:20:25Z), 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/USA2B9615810.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6bc818174ae85a1d6b32b236496ae61ef08c0a6a9d2a386558ff77567ab3e004. Chain 2 (Bitcoin): anchored in block 958947 (2026-07-21T00:53:33Z), 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/USAT29800668.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xae6fde11eb55adfe8d5f8b1a13f456ac81e9a837568477fcfbedd7427c446dee. 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/USAT29800669.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa632b79c2bf8ac901c7e8410ef047d7b4b1a6c96fed5a04280f48b3cf7a2f882. 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/USAT29800673.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb23e1c74eafbd7315c18f9053c9800438ba47fc0cf92d904d96a007ba00d1467. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), 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/USAT29800674.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xee3ae97802f0bda45672bf30b5185492c8a6883c5cb6f66105b82404b2eb4761. Chain 2 (Bitcoin): anchored in block 959103 (2026-07-22T05:56:21Z), 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/USAT29800675.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2cd65b86aff5f20cebb1ec1a45e25162da30752ef421b8ca87c0cec795985cbe. Chain 2 (Bitcoin): anchored in block 958157 (2026-07-15T13:14:32Z), 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/USAT29800679.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8adea641ecc424da28168e2c9226f50e9e7f6a4578f33354360fae6a74c56188. Chain 2 (Bitcoin): anchored in block 958975 (2026-07-21T06:12:52Z), 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/USAT20002117.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x171cc959fdb0140e7d77745425a6bdc28ffc8907b0735490ce466dfe94dbe4fa. Chain 2 (Bitcoin): anchored in block 957680 (2026-07-12T09:07:22Z), 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/USA2B0214201.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb4cefaf002d4d8154388c60d0dfe4d6bb868fd3a68726dbcdf0dbc10a73477cd. Chain 2 (Bitcoin): anchored in block 959084 (2026-07-22T00:50:00Z), 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/USA2B0214210.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x810a6d225d69defab819407aabb6783e7468d731f43c084aaadbbf5cbf886eed. Chain 2 (Bitcoin): anchored in block 958771 (2026-07-19T19:27:18Z), 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/USA2B0214211.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd86f2897e929ed1e1ce96d3e8921c54f0528d3bfff918717d85a42a9de0e9d77. Chain 2 (Bitcoin): anchored in block 958069 (2026-07-14T21:37:55Z), 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/USA2B0214202.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x916b461a26afcda96045efd0d0791e4a51f737e0af1e8e72998d5b7c28498aa7. Chain 2 (Bitcoin): anchored in block 958931 (2026-07-20T21:15:01Z), 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/USA2B0214203.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeaa13ec17f7876a237f5a47adc77c286fc53cbfda8bb6f2de3e4c70dfc3878bf. 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/USA2B0214213.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0f4837441f46fa571b5f6fd8234d91fd7cbf35a60980586f81a7e3c6eb3695b6. Chain 2 (Bitcoin): anchored in block 959024 (2026-07-21T15:31:18Z), 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/USA2B0214215.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x159aca83c6ba71a3390627a02ed2b54339e291467a07e8005910bc4ad85f4d2d. 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/USA2B0214206.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdb770621d6b82a0b98e9bf900091b8ff826affdfec50568acdc378cf724d15bb. 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/USA2B0214207.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb05dd01c67894d93d1c3f23452ad3b2ff3e0b27c1ffa1992006bad079df1e657. Chain 2 (Bitcoin): anchored in block 959061 (2026-07-21T21:34:21Z), 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/USA2B0214208.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1656f5478c83ddc4f4d2dade149db55d552205fd8a69169830feaf0f1de47594. Chain 2 (Bitcoin): anchored in block 957692 (2026-07-12T10:37:51Z), 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/USA2B0742901.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbd23e1a7b2f09ba4df7d6529b728a626e17c53c68b9c501797dccfe52765a8f7. Chain 2 (Bitcoin): anchored in block 958774 (2026-07-19T20:03:27Z), 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/USA2B0742902.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x92d5b63535dc1358f39a736f53321ed208d3da61340a0ebd087bfd544b36e622. Chain 2 (Bitcoin): anchored in block 958063 (2026-07-14T21:07:34Z), 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/USA2B0863015.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfd686f2185f0088901a6e4c7d65a2e6be8bb65d368af8e1609aa5174b78326bf. Chain 2 (Bitcoin): anchored in block 958601 (2026-07-18T19:27:02Z), 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/US8GP1000004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfa9151b56fc6a519849fd4ed348405feac18a9f46ba322c26e683c10b5b7e77e. 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/USA2B1511303.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdba5c25746f5aea367a2768e1c2170193e5b793c3c5746211f3a55eef216b834. Chain 2 (Bitcoin): anchored in block 958480 (2026-07-18T02:58:58Z), 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/USA2B1511305.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x897d398b6855680b33cc536ee40bee39edb8fc05da79c442e88f6fb7c62e4fd8. Chain 2 (Bitcoin): anchored in block 958917 (2026-07-20T17:53:56Z), 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/USA2B1511307.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdd698b6cd78b71705e7aad1ea5b349342b440cff704937b4dbf021eb80c0dfff. 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/USA2B1511309.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd9eb85be32ad32635c54a217f057351c35f6a95c9dbe58cb517e0ff48fe62654. 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/USSGI0661008.
A Horse with No Name: Best Folk Rock Ever
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6bc818174ae85a1d6b32b236496ae61ef08c0a6a9d2a386558ff77567ab3e004. 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/USAT29800668.