Bob Carlin (born March 17, 1953, in New York City) is an American old-time banjo player and singer. Carlin performs primarily in the clawhammer style of banjo. He has toured the United States, Canad
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
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5a7b4a507db19fedeee27a87e50764452c344d148a9353b52d3ddeeaa88d308b. Chain 2 (Bitcoin): anchored in block 953641 (2026-06-14T13:54:28Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/3a5c5c00-5b69-41fb-b061-0d88cef6cce4.json and https://artists.proofprofile.net/proofs/artist/3a5c5c00-5b69-41fb-b061-0d88cef6cce4.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
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x02b9a119667d0a1443c0d44af63f38f7594aba23203f604d0e3e213beabbb422. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/USRO29532010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaf1dbc0bedd2bb5fd5d467f4436abe0af86b20fce6952d05c313d7f2ff0111dd. Chain 2 (Bitcoin): anchored in block 960468 (2026-07-31T21:25:57Z), 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/USRO29532001.
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 0x97470153414f66e50808e8aebdcdd4cfca59132a83f45fabc35ce3aab24aee34. Chain 2 (Bitcoin): anchored in block 960368 (2026-07-31T08:26:41Z), 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/USRO29532003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7bee4cc838442bbd81508e2583d920a3d73f5c309c72ac52b87c2b4e181d3f3d. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/USRO28013203.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3b90b8329081be00846974a747a6d14606de406737a64603122529645bb1161b. 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/USRO28013204.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x37e50a7de2f40abe850166be0f5f1b52a0dc2ca385a8c4f0da75acfcd3316c18. 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/USRO28013205.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6b2a865a9fc2f840b700549d6526fb281beee9d38fa8f930d49c470417627736. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/USRO28013206.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6351d591360b9b5b0a605aebede1c53ff91cbba135349158b6459d0b20e4c8d6. 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/USRO28013209.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3b400037690e34aed92e3e1e9a40fa80f68d5757840c15e6d655bbfa54c921d8. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/USRO28013211.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x031f06ec49998f699b7aa5a7b88241fda529aa3bf1f4c5c8763a2980e230d0de. 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/USRO28013212.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x449de578c6d08cb9be2ecce1ab9c7f7a1f9967ed8c86da74df30d03dc322af75. Chain 2 (Bitcoin): anchored in block 956349 (2026-07-02T11:34:59Z), 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/USRO28013213.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x80cf90092e448f703d75965adb9c55260cb15aa08b76a99da80de79e5ef38eae. Chain 2 (Bitcoin): anchored in block 960105 (2026-07-29T12:35:17Z), 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/USRO28013201.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xef65570f57449484bbc493a014fea26e6e081335c9bf031f57f698edb43ab3c7. Chain 2 (Bitcoin): anchored in block 960321 (2026-07-30T22:27:30Z), 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/USRO28013202.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa9f2923e998f041d039ba2ce02416a916db3a6daf85bc81f0f2f24c84877d1b1. Chain 2 (Bitcoin): anchored in block 960407 (2026-07-31T13:26:30Z), 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/USRO28013208.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc193175fd700cad33698ede9f7fb67c5036022309b9c5c6795b1df222924a708. Chain 2 (Bitcoin): anchored in block 960489 (2026-08-01T00:40:43Z), 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/USRO28013210.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x862df9990d91ff41ced5c306bcaf2a68d06c9e43f3ceb35e3f9572603e10a6d4. Chain 2 (Bitcoin): anchored in block 960506 (2026-08-01T03:50:58Z), 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/USRO28013214.
The Arkansas Traveler: Music from Little House On the Prairie
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6746a2703daaed72dd480c368ec6947016b596e1b9005f5c43d3b450bbd52bc4. Chain 2 (Bitcoin): anchored in block 957065 (2026-07-07T16:43:21Z), 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/USGMF0700001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe9ee788dcf670e041d0d37ce08df4d65f70ba4ee6e73bf991aea821730271380. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/USGMF0700002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x59598b0798952364e8bf0b2b704b9201132ce63f70b34b32827e1b41f39ddb2b. Chain 2 (Bitcoin): anchored in block 957061 (2026-07-07T16:07:00Z), 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/USGMF0700003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x355092521ba5282d34202105906c4483d9b2d19955c8409804a1f1b099624d4e. 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/USGMF0700004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc8aef780b699dbeb96218c0174a39d0978cb664332cec15c1b00be208cc0b54a. Chain 2 (Bitcoin): anchored in block 957056 (2026-07-07T15:15:30Z), 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/USGMF0700005.
Nashville Mandolin Ensemble, Mike Eldred
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0ad42a128651bfea382030862ae973ac131cc039b1810c5168045632b3601bec. 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/USGMF0700006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1733f3beb45c10c60bfc5ada5dfa6bdf77522df6eddfb252718b0a6a50f368f2. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/USGMF0700007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0ade798febd38fc4a8736ab04cf0c6bd41f8681f796ec47fb36ab4a34bc0a1e1. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/USI4R0502310.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaef5301117ba5a5e1ec83e42ac28ae6e046b84be441f19aca06de2f6d6f4a8d6. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/USGMF0700012.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbc45e0c72de7daa1320095c592efaa0a31266961037633920e1b7a8f580a674f. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/USGMF0700013.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5373d4b2a2e267d85ff1b317a6c9b4ebdba478e5b9811af2442495cb6e25c82b. 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/USGMF0700015.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc2660f8bce79c5fadf7115e28b2e36e1ae6639b01955179dbbf19d075bfa3917. Chain 2 (Bitcoin): anchored in block 960209 (2026-07-30T05:15:54Z), 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/USGMF0700009.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x27b11055d1dd92a30fa0c94375e25bb71e8190e3fcc3c5794eaa35bc12d5a7a8. Chain 2 (Bitcoin): anchored in block 957041 (2026-07-07T13:25:45Z), 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/USRO29926101.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaeee7dc077d9e2edb58a1543a3f128f13726fd8a825f77e8b50535b637873da8. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/USRO29926109.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa015562f2915095f2871ce788111954a19138002375542b58322b18602aa2bac. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/USRO29926114.
Oil In My Vessel - Live At The Augusta Heritage Center, Elkins, West Virginia / July 17, 1997
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa811436aac4cc7e1ab3b7d31c9d65cbeb02e4dd435f1530b048f8b689a5b3312. Chain 2 (Bitcoin): anchored in block 960410 (2026-07-31T13:50:38Z), 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/USRO29926103.