John Doan (born May 16, 1951) is an American guitarist and composer.allmusic.com Background Doan grew up in Venice, California, and at the age of eleven began playing the guitar, first a 12-string, a
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 0x4cf00827ad467e214649c052233cdb66f1a9f4df91e43142deb83aac8338824e. 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/6069ec10-99f7-4b27-b99e-572ee23290f2.json and https://artists.proofprofile.net/proofs/artist/6069ec10-99f7-4b27-b99e-572ee23290f2.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Remembrance: Melodies from a Forgotten Era
Wrapped In White "Visions Of Christmas Past"
Wrapped in White: Visions of Christmas Past
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 0x4aeedf0ea34fbbf61588d9fd0bd8c2a79c356de8545de8d447e449c810069c2d. Chain 2 (Bitcoin): anchored in block 957899 (2026-07-13T19:36:39Z), 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/USAKS0600536.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfcc6c7b91fafd45a7ccbbc2af942bc20bb7ba310ae21466044317cadbbf5493b. Chain 2 (Bitcoin): anchored in block 958142 (2026-07-15T12:44:50Z), 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/USAKS0600539.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8fdd5900324d6820044989dd739b05534a8813ef865bc358c09205ea76cefd57. Chain 2 (Bitcoin): anchored in block 956440 (2026-07-03T04:03:57Z), 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/USAKS0600540.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd9eaf8be950cac7fc0d563b5b759a4901ff245bde0d3d0550f1265e82af41cb5. Chain 2 (Bitcoin): anchored in block 958447 (2026-07-17T19:47:19Z), 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/USAKS0600543.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2104922b97e10f71a07076e824e792ca6c60744dc60f2e6b7bbf2ec4e99aff2d. Chain 2 (Bitcoin): anchored in block 956440 (2026-07-03T04:03:57Z), 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/USAKS0600544.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x318dba48ce39499e20099ea212dd9ebef837ae46af4466ae5e42c60853e490b3. 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/USAKS0501908.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x78fc8dd0536c6150faf63100eb59159bfece3999f284d9f61aec133c17294608. Chain 2 (Bitcoin): anchored in block 956422 (2026-07-03T01:01:38Z), 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/DED331057370.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x519edc055cbe396c36ba3099029d90844faee7b3f83d670717a25c29e58f8c82. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/USAKS0500924.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5687507498bb5c41ab5414cae45636384ab93ff14ec8580f296e9c15d0a795c3. 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/USWH19800862.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x89abe9fca348fdbb360dccaf49106dad084606c898cd5ea5e49ca4b94b8d9286. 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/USAKS0500955.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe9fbf43d9ecf5bafa35f68677fde6fcb34a51571ab97d879dfd0fb9d152d8cfd. Chain 2 (Bitcoin): anchored in block 956351 (2026-07-02T11:38:34Z), 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/USNA18812235.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf2408393d7fd835f1457724e28860dfd038c1b72e52e0ceb02a288514dc28a20. 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/USNA18712163.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x16b180fb331e0cd0c5f00df3298f982281437418c48e1cd78758d6f9dd53047d. Chain 2 (Bitcoin): anchored in block 959123 (2026-07-22T11:35:32Z), 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/USNA18813570.
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 0xa4ec3827db11382961722d98daf878a450d9603cdc4215ae1f2713ae708c6f66. Chain 2 (Bitcoin): anchored in block 960212 (2026-07-30T05:43:45Z), 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/USWH19801074.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x332cd294197d219dedfdd5111be3b20a230efed3505a9a990b8d7c85fc28f995. Chain 2 (Bitcoin): anchored in block 960334 (2026-07-31T02:19:15Z), 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/USNA19810531.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x56e41bcf9d97fe9fc3d0663e3b64ba99132706451645b7488149f0896127ebb8. Chain 2 (Bitcoin): anchored in block 960264 (2026-07-30T14:36:16Z), 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/USNA18712165.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x069d76c5942a399a6e3c71d1f1e80637a634ad221681c17d51b0270e13baf400. Chain 2 (Bitcoin): anchored in block 960144 (2026-07-29T21:09:47Z), 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/USNA19212113.