Brad Hatfield (born May 15, 1956) is a musician, arranger, and Emmy Award winning composer. He is a regular performer on piano and keyboards with the Boston Pops Orchestra.Karuhn, Carri. "Woodfield Be
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 0x9265d0d203fc235d65476c10da65697dd3de574cdf6e3e80dc69d5231036a833. 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/5f42aeda-8cde-4918-b949-95792d043c51.json and https://artists.proofprofile.net/proofs/artist/5f42aeda-8cde-4918-b949-95792d043c51.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 0xdcc4ec0bc22b989303839a475c7f245e765ce689d6a0954e7ca51dd895490050. Chain 2 (Bitcoin): anchored in block 958812 (2026-07-20T05:50:40Z), 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/USHM90593835.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8f2ef44164429180830fa67982727d0a96488ba16ae5cb67352357b3ee199c2c. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), 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/USHM90593838.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7b37dc2c883b435a9896adacf69a18d2ba21ee671dfb877b5044a62c665e4e65. Chain 2 (Bitcoin): anchored in block 956738 (2026-07-05T04:47:21Z), 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/USHM90593841.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x43b094453b31e04974c6c94bc31438b28989ab6aa7ae01590f65254b3415e30e. Chain 2 (Bitcoin): anchored in block 957754 (2026-07-12T21:26:22Z), 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/USHM90593842.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x23d0ef9f59001ebf97ff4aafd3034bef1df35d2bd1e494e86f8e238137b60461. Chain 2 (Bitcoin): anchored in block 958943 (2026-07-21T00:27:37Z), 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/USHM90593844.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2d316918e50e5dd13d328278f708664d283696fa2da82f17e8abbad01c128f17. Chain 2 (Bitcoin): anchored in block 958825 (2026-07-20T07:34:53Z), 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/USHM90593845.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x36846ecf55d4f72aa31c0d1332acd47072f610eb44fa490d187d95e8e71fd9a7. Chain 2 (Bitcoin): anchored in block 956790 (2026-07-05T12:31:54Z), 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/USHM90593847.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x468d38fb2b4b4aec2f50c4b440f01e7de42769437cf096be7b6a4c34e772e1cb. Chain 2 (Bitcoin): anchored in block 958955 (2026-07-21T05:04:03Z), 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/USHM90593848.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5cabadc0c12ec6df0f3fc5819897b850565615e6d76d0c8fea5724d7b915bf21. Chain 2 (Bitcoin): anchored in block 958943 (2026-07-21T00:27:37Z), 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/USCGH0780788.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd24f910f7a85413f915fad1bb6b29668fbb3e570cc303d4649374f2e2ec9b01f. Chain 2 (Bitcoin): anchored in block 956891 (2026-07-06T07:16:32Z), 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/USCGH0780791.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xafef1526e6faabdae9a6a1822ff02bf20191080f90d988af1b206bb7d36a9347. Chain 2 (Bitcoin): anchored in block 958601 (2026-07-18T19:27:02Z), 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/USCGH1365984.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xed0b48ee7e90d13b6801a8f94b2361d04fa928e1cc06182ff7e2d2eb86d41a94. 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/USX9P1406995.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x157ab80d6cf6397077c50587bf9b1b0ce607b62402c97f5d868328b3b832196d. Chain 2 (Bitcoin): anchored in block 958792 (2026-07-19T22:55:52Z), 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/USL4Q1770225.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe8d0049efa6eb7380351e9206470a7204faab388c558890b9af0ff990c52430f. 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/USL4Q1775563.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc5025c590ed9812fedba444defa499d5a83aa450e96313732cf3b97dfe19d86d. Chain 2 (Bitcoin): anchored in block 956551 (2026-07-03T21:18:05Z), 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/USL4Q1775565.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0beab66428339cc078ac5cb713acd3ce5a5a145cf9d240f21a6d5acbcd133cf2. 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/USL4Q1775567.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8311e41c745d21c3ec0449af022b3491db07e00cdd7b17e610760bc294c5f163. Chain 2 (Bitcoin): anchored in block 958067 (2026-07-14T21:26:15Z), 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/USL4Q1775573.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x456479450277fa81476bc2b906f6364124b535259db88cf12d98321e1fc70610. Chain 2 (Bitcoin): anchored in block 958711 (2026-07-19T09:26:32Z), 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/USL4Q1775576.
Holidays at Home: Smooth Jazz and Cocktails
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x939db25c3db4d859677972e67b876c169267128ca07cc0de377c4b6924463faa. 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/QZSJF2200102.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe5e0a7b1327aa3a15de86470199e107c7e99c11a9d94959f3a8b517a3a416365. Chain 2 (Bitcoin): anchored in block 958716 (2026-07-19T10:15:55Z), 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/QZSJF2200106.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x12f6351b47dd1471d70f6e1fa9a8311e5fad769a242511a65af1b45932517375. Chain 2 (Bitcoin): anchored in block 958716 (2026-07-19T10:15:55Z), 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/QZSJF2200112.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaf803a5f83202bdcad1a884c6f2c3c4f492ddd62e1f6f0bba8fda22d88cdcf40. 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/QZSJF2200141.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x063a4a3d169fe137627181affa7e3b4d7e6a26d9877137440e4cdc466703e982. Chain 2 (Bitcoin): anchored in block 958491 (2026-07-18T04:29:42Z), 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/QZSJF2200133.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x433af75ff29ce5549cd0c2a6e0c2c9cde2a1475d9f44e25ee228bc9f641db2f5. Chain 2 (Bitcoin): anchored in block 958783 (2026-07-20T00:19:36Z), 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/QZSJF2200119.
Straight Up: Jazz and Cocktails, Vol. 10
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3b24463668ac68a062913329957c47b7be9a278b54688b3d24811abcf4bd14f4. Chain 2 (Bitcoin): anchored in block 956728 (2026-07-05T01:43:49Z), 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/QZSJF2400026.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9ddc3c97bb488274da5a8adcdebc6efee6bea48adb23cba3f19fe43d9c008007. Chain 2 (Bitcoin): anchored in block 956396 (2026-07-17T03:10:20Z), 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/QZSJF2300059.
Straight Up: Jazz and Cocktails, Vol. 12
Straight Up: Jazz and Cocktails, Vol. 11