John McCutcheon (born August 14, 1952) is an American folk music singer-songwriter and multi-instrumentalist who has produced 45 albums since the 1970s. He is regarded as a master of the hammered dulc
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 0xa6d6d1708c5dc3f74851a6d3b7fce3cc214dd3d87bf0e1c3aee5c21ccefd5564. 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/c2955305-58bc-41aa-887a-a379f638125b.json and https://artists.proofprofile.net/proofs/artist/c2955305-58bc-41aa-887a-a379f638125b.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 0xb4fa671c71602242ac1cde3ba418ba8d958eba3a3c117c1d6c2e5770b775e112. Chain 2 (Bitcoin): anchored in block 958905 (2026-07-20T16:14:34Z), 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/USRO28600901.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdb082dc7100d9ab7dad54507ba4b116bcec7384bef810b07852cd0ecf74f0f5b. Chain 2 (Bitcoin): anchored in block 958690 (2026-07-19T07:14:39Z), 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/USRO28600902.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc454186025a8570c4f51f51d97ee2aa94045e5092c0c9f3c36618753230a1d69. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/USRO28600905.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x17e053d56bf87443261a7a19343202dcca0bb4c1ee6ab8e67799ab8f205c7189. Chain 2 (Bitcoin): anchored in block 958612 (2026-07-18T21:29:37Z), 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/USRO28519204.
Step By Step: Hammer Dulcimer Duets, Trios, and Quartets
Step By Step: Hammer Dulcimer Duets, Trios, And Quartets
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x29f89fbe59587432f95ca15b817e3550d97a5c44335ca34e0459b6d26236af3a. Chain 2 (Bitcoin): anchored in block 957863 (2026-07-13T14:41:15Z), 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/USRO28702221.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x12573020976d9ecdcbe6ded5cdfb5513d00bf579352b33adc9872325c2d0e01b. Chain 2 (Bitcoin): anchored in block 958742 (2026-07-19T16:16:46Z), 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/USRO28801601.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfe94ba0085c52db5eb6d0218fbd00593b8cc00c5b59f6d904c93343d995bfa06. 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/USRO28801602.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbd37290ab30818a7dc7fe53deeaaedcf6dd949b9664243027f84aac9591343df. Chain 2 (Bitcoin): anchored in block 956656 (2026-07-04T14:03:39Z), 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/USRO28801611.
Water From Another Time: A Retrospective
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x69317bd316bc5a3772f7fdc749ba2fdfe6e9bdd23dc08d31eb0d2017e48004cd. Chain 2 (Bitcoin): anchored in block 956560 (2026-07-03T23:28:02Z), 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/USRO28955519.
John McCutcheon's Four Seasons: Wintersongs
John McCutcheon's Four Seasons: Summersongs
John McCutcheon's Four Seasons: Autumnsongs
John McCutcheon's Four Seasons: Springsongs
Welcome the Traveler Home: the Winfield Songs
To Everyone in All the World: A Celebration of Pete Seeger
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x710960761027e0677695ff0afea4794be47aefabd71fc1a984f971636e23bdb2. Chain 2 (Bitcoin): anchored in block 958816 (2026-07-20T06:37:23Z), 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/USEPH1800001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfff1e59dc3e600abc2060a89a52f804d67587e4619ae97299f627b75e8e3a578. 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/USEPH2300022.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf71db6503df035be3b5969392046131c1965f08a7d90488286e8ae1ed7b7d73b. 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/USEPH2400002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf5a129c4491b596e22d4c71feb03b38f7ffe564b53566db7def58bb37f3a3127. Chain 2 (Bitcoin): anchored in block 958639 (2026-07-19T01:18:30Z), 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/USEPH2400005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7fe12c8602a8aea60eb68dab4e4a9dcdae931727b8b8bb42b47faa103cbbc343. Chain 2 (Bitcoin): anchored in block 959015 (2026-07-21T16:34:41Z), 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/USEPH2400012.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa3937aabe5b0bf29dfad65e383ca7cd98461760fd5a4df020e2558c380b8f989. Chain 2 (Bitcoin): anchored in block 956857 (2026-07-06T01:26:17Z), 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/USEPH2400014.