Jeremy Matthew Messersmith is an American indie pop musician based in Minneapolis, Minnesota, United States. Messersmith's Reluctant Graveyard was named one of the Top 10 Albums of 2010 by NPR. His vi
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 0x86cc125adf88c61962d3fdbdccfbf52204a54ce8e9168092d07a3518f5374e7a. 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/2ab7b096-17e4-4e3d-bc7c-b2b1354cbb2e.json and https://artists.proofprofile.net/proofs/artist/2ab7b096-17e4-4e3d-bc7c-b2b1354cbb2e.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 0xa8b3a84873283de2db2510d526f4937c46cd7bb50fafdbc0e13af76b913ac3e0. 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/USTCE1061561.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x103744f8b925c83ead86248f8af34621aa23721a8ad0e32a5785ba605a66d043. Chain 2 (Bitcoin): anchored in block 959355 (2026-07-24T03:24:16Z), 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/USTCE1063243.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1c0989cfe95c02cc4592cca7fce6e18e7f7a4ff1087b1934dab736b1bd7f580d. Chain 2 (Bitcoin): anchored in block 958600 (2026-07-18T19:24:05Z), 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/USTCE1063244.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf8ff1e83483deeea3dea4518f88f6540feadd8f0b1d7a3db3d5e5e12373b778f. 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/USTCE1028957.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd1a08c98f79ed776d486ea5576760ef26cbd500c22b20006e77ecb831fb63e8f. Chain 2 (Bitcoin): anchored in block 958942 (2026-07-21T00:24:07Z), 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/USTCE1028958.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7d1c9c8a4330706b4b10358694204a4ce518250930543895c0c327a86572c98b. 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/USTCE1028961.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc7aefe6ea60d7797d8bc619386b47e09e3714c7a6cc417bc6889a2140c7ff5a4. 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/USTCE1028962.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb8ed3fa100ff4ad9353ac060ebaf52f123f8f8e5b744a2f06324dd532f487123. Chain 2 (Bitcoin): anchored in block 958686 (2026-07-19T06:43:29Z), 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/USTCE1028964.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x54407e64ab82d643b541a54512beaf4f95a9f253917caf2786e1816c64fc5d0a. Chain 2 (Bitcoin): anchored in block 958796 (2026-07-20T02:57:37Z), 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/USTCE1028965.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x63f96cf14465dcdedeaa8c1d9a7a3d0dfc7becc9784fab8bbdca101fec858d13. 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/USTCE1028968.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7b627911c947096454516c1058bf68c1130f1a97f70f27beb063d6c48f2b0f33. Chain 2 (Bitcoin): anchored in block 958251 (2026-07-16T06:29:25Z), 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/USTCE1028969.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x288de4e393af09be3c79152fe46eebe9fc91d3ad7ce6a87526f3f58743d5ea85. 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/TCAAS1028006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf6eedb03f9a9476caf7edd82f7d57e441e9f8978e306c4866e13825839009e37. 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/USYAH1300177.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc6c2e750d8ccd8c0e103ceaa06303e4785378d4e6c64702d7e242612d05e589f. 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/USYAH1300178.
11 Obscenely Optimistic Songs For Ukulele: A Micro Folk Record For The 21st Century And Beyond
11 Obscenely Optimistic Songs For Ukulele: A Micro Folk Record For the 21st Century and Beyond
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe29c15f15702d0021594f5dd318f9f2d81d6b6443ad7b429429ea8f199e9d27a. Chain 2 (Bitcoin): anchored in block 958607 (2026-07-18T21:01:11Z), 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/USYAH1700042.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7770f1e1ed409bb2ec8b61feed76a637500c89aafe7f366b0a2b1bad7a45e8d3. 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/USYAH1700043.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x732daebc0ed18201ace6175174b388bace371e3cb3ecedbb91bfa1399e2e3e06. 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/USYAH1700045.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdc538adf7fa1d660318dbb08288c38f47171480cb7f4329fda44c959f35b8715. Chain 2 (Bitcoin): anchored in block 959010 (2026-07-21T16:09:39Z), 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/USYAH1700048.
11 Obscenely Optimistic Songs for Ukulele: A Micro Folk Record for the 21st Century and Beyond
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbb3428630053578d7becf4f145b3519e1b1f5f7cae2813313382a94cb1a7d9d2. Chain 2 (Bitcoin): anchored in block 958341 (2026-07-17T01:08:10Z), 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/USYAH1700204.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3ecaaa8d00c76189d78071b95ed4f793dc357cce18559d8d799b28c78d12c71e. 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/USYAH1700205.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa10aa0ba14e39baa74e936f24399cca99a4766a1da82c23b86efa87e1f313b76. 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/USYAH1700210.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc949b4ce40b52519bd80f995ac2f3984a98f5709cca138c88e9bddfc4015336d. 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/GBKPL1936747.
The Summit Avenue Swingers Society Presents jeremy messersmith Live at the Bryant Lake Bowl
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2709749ef82e3ac204cddb203e3fd6a6d6c3f129b308c40cff3232c4efcc659e. Chain 2 (Bitcoin): anchored in block 958245 (2026-07-16T08:33:33Z), 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/QZZ762463859.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4ac8189e5ca2c38d77c74a95911ea2cc5d05de70d14939a36a992b1dac168955. Chain 2 (Bitcoin): anchored in block 957703 (2026-07-12T12:26:40Z), 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/QZDA42599672.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe20a94a931ff351abd2debe352049d8092409a5408dc6176d0e5cfec3de6625d. 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/QZTAX2542818.