John Kenneth Davern (January 7, 1935 – December 12, 2006) was an American jazz clarinetist. Biography He was born in Huntington, Long Island, to a family of mixed Jewish and Irish-Catholic ancestry.
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 0x9a7cc2015fae6637b7d5a8c2b84f5113790e209568b980782a83678e8df1a63b. Chain 2 (Bitcoin): anchored in block 953762 (2026-06-15T08:21:23Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/b9504c83-384b-411c-8ddf-d045574f07da.json and https://artists.proofprofile.net/proofs/artist/b9504c83-384b-411c-8ddf-d045574f07da.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Summit Reunion Plays Some Al Jolson Songs
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 0x44cae627441a25818bf501d278a43854aa4e403af68584575a69aedb781affa9. 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/US89R0613426.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1e680cb14cb2d759298916ca1465ea4adcda64adf6ee55371b7a9149ed4a8c1e. 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/USASQ0511366.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x366894c97fec812424d7cf57b32a9a4b79c479043e3f9de9b72507e614233e4f. Chain 2 (Bitcoin): anchored in block 960138 (2026-07-29T19:35:34Z), 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/USASQ0511370.
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 0xa51250ab688d6d5c72838729697f3072d9a032109217838232992878716919d5. 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/USASQ0511316.
Live at Vineyard: Kenny Davern and Dick Wellstood - Never in a Million Years...
Dick Wellstood And His All-Star Orchestra Featuring Kenny Davern
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6c93024a74fe3b55ed8a2ec7b5f08af8e4b4584baea1271a1f3b097beef47a26. 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/USASQ0510279.
Hot Jazz for a Cool Night: a Jazz Christmas
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe7ae0214e26524764d09150d6ba66111ba5d250dddfe85f143494a65367901c5. 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/USMU10820046.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbb34a965833978243a7fb50a29f2b6dc2297ad621f1e510be94bd9079a1ecc90. 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/USMU10820047.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4e1402c4e2334cdfdac5c5339b7ae9ef44b612b905690c72a8078194a3204f91. 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/USMU10820048.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x091684b938b51bfa99f8b4cf0175dd9d191eed074c2c7d6bc19427f91c9cb645. 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/USMU10820049.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe934db23bd0c88355380fe6d304bc06781becf95a54b53010c54bb33ac0d6b79. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/USMU10820050.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9576ebaeaebc9bd8dfc15bb46b5c1eaec8ca72ef018a493ee3b227e72b118d5f. 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/USMU10820051.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x95a732764817e65dd0109cce616a1058c628fe6033023e33bd53b06ed54728f2. 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/USMU10820053.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7f304806f753860510e60439d7b1551eb7168ff9dc293d08db2ee8307ffe38a5. 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/USMU10820055.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x83552e327619eaca891d57588216ca09096d5d9a6609a188c7b809f0c50a4918. 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/USMU10820059.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x409ba79fc41358b5518c461614894135a5f93b541776d8aa66023b0b9147dc3b. 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/USMU10820052.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x419b7fe1e75a182948bb1648e19203f0dddc3fe2feb703ae6625a25c07a4fb47. 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/US89R0615180.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2b27d6146afcdfd7ce7b70aedb08322c5678bfaa8fa97d86a9b9905590123bf3. 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/USASQ0510851.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd7504c12bee0b6dded29acd69b29c72086a605f7ffb232a24c54c825c2847904. 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/QM6J92200009.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x91aa995742a328d0df96c0e5c44f6b092d55bb3e8cea52e4510aa562a5f7a03f. Chain 2 (Bitcoin): anchored in block 958042 (2026-07-14T18:24:07Z), 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/USSM10005505.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x20102d02659ba5a4a6a5ed20d4563bd9bc77c0a86b72cfa711792ea9286513ad. 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/USSM10005506.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbbb5a6b9c02a31a2dea3bcdf8916bd30bb0bd2eec1b896ced6a33cf01b3b0949. Chain 2 (Bitcoin): anchored in block 956889 (2026-07-06T06:56:49Z), 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/USSM10005507.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfe312993d499ce9ddcb2a7e64e8e92012970ae9c8c1d35b76dc3ce0d6ceb539c. 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/USSM10005508.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9cbf7d9405e2badaf432d0d91d5624abf1b44eab82c7f9962076dc3f5b9ba4d7. Chain 2 (Bitcoin): anchored in block 958041 (2026-07-14T18:13:17Z), 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/USSM10005509.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb0361e2168c759e37249103c791167423fd16eabde791ee659ad9f3197543a16. 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/USSM10005512.
Penthouse Serenade (When We're Alone) - Instrumental
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8b77e9e5b1b6beea34a04466cab90e6d2a7ec00f2f2afbfa5e4e6e1f526d6b86. Chain 2 (Bitcoin): anchored in block 956889 (2026-07-06T06:56:49Z), 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/USSM10005513.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc6ead97f17e52c06c592ec8c9049a4f402d19052f77f989f8474d400ac61f50a. 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/USSM10005515.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd9fc1cda29ab5cf8899ff586564581dde0a34764a12380fc3dc3c9592e031e3e. 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/USSM10005516.
When You're Smiling (The Whole World Smiles With You) - Voice
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe0251dc7d66bb8cff69b3f7a29d41e17b2c0debd19040d4a1fdaa9b35f8a67c9. 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/USSM10005517.
Sweet and Lovely: The Art of Jazz Guitar
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaf8594ca76eb119023f29ad70be1b397a6e92f86a81596b85217a4e3a68dc75f. 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/QM6J92200005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbc57443fd59568a032a7b327216407742b9887e2c1a1cb00cc1d42cfbe4e92f7. 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/QMBZ91575664.