Alan Lomax (; January 31, 1915 – July 19, 2002) was an American ethnomusicologist, best known for his numerous field recordings of folk music during the 20th century. He was a musician, folklorist, ar
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 0x871b9dc4d91326557bbeb8afb8b0825649be0ab457e77db6a2d6ba1cdae6522d. 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/596f6b5c-c9da-4b41-8970-47e32fcb06b4.json and https://artists.proofprofile.net/proofs/artist/596f6b5c-c9da-4b41-8970-47e32fcb06b4.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 0x477f1a6160b513805a6f4657d959d8e0604b3b200e6e17282536a3c097b29826. 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/US6R21521728.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x32c08bc85cb4a87e272bf6c486e26df0df4ff77bca51ca71b7d77e6d56fc986c. Chain 2 (Bitcoin): anchored in block 957622 (2026-07-11T22:55:42Z), 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/US6R21521734.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x68689c5e231b29a3063d5616b39d2bb9f13609b47103e386cda11d8875543271. 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/QM4TW1836754.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6f7e2af8a8b84bdb57fa921d1d49668c621f4157f1fb3d22dd46eadee5d8452c. 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/QMBZ91946935.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x02cfcdda9eb68d28e83fb0f3a15b6080e36d697248fe41c2ea3d45a9365270c1. Chain 2 (Bitcoin): anchored in block 956822 (2026-07-05T18:48:28Z), 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/QMBZ91946942.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8e9b06cd946b70349f41a8b1dcbdcb256c9868286e9b5c2982f34aeacbeb0a3f. 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/USEEC0612499.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd249aefe70896ef55bcc70c142ecbb07a4ef46f2ad3c682186eea8cdb2196f34. 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/USEEC0612502.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6a1dc50a762ded2be793f2d086daa74923ad03b88755fc847502451682203bf5. 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/USEEC0612503.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe9166be5c87eb41d5b15678b07a058f89e8ba1e079bc2ea51edae67b5d798c76. Chain 2 (Bitcoin): anchored in block 956822 (2026-07-05T18:48:28Z), 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/USEEC0612504.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0af6aa42a040ca5315862a1372371bcf4b7cd78bbabd9458fb23700794881fc2. 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/USEEC0612505.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0e5c6f9fce8cb934443a4afa2683e6d496daad6dfdaa773ff633913437bea9e4. Chain 2 (Bitcoin): anchored in block 956822 (2026-07-05T18:48:28Z), 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/USEEC0612506.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7580bcb53772f41146e0c8184f4fdd02801ea250a44b851de952ecdf0cebd38f. 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/USEEC0612507.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1b67525182401a15470c34aba5e390834fca2ed081b858486d5fb224cf160e38. 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/USEEC0612509.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x41e17702f82d0dda42744f864cf60ae7ed2268f0c893c1cf92fb44e43747b60e. 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/USEEC0612515.
Cowboy Songs Of The Old West (Digitally Remastered)