Donald Kirk Braden (born November 20, 1963) is an American jazz tenor saxophonist and flautist. Career Braden was born in Cincinnati, Ohio, on November 20, 1963, and raised in Louisville, Kentucky. H
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 0x772de7618882306986536b5e407f4ff6bae5e74367e97ff6c02bcde07b8334a7. Chain 2 (Bitcoin): anchored in block 953842 (2026-06-15T22:22:30Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/f8ee9616-d670-4309-8dc5-c1eb32960cb9.json and https://artists.proofprofile.net/proofs/artist/f8ee9616-d670-4309-8dc5-c1eb32960cb9.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 0xc7c057e96d281a4f39c1b58eb388a4a6b673c7b4625605028f3ee3c50818c6c8. 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/USZ6S0072107.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x877a7061f5fe614b2d780668ab25241c55ea0600f795e51b0c9430ca2e33d041. 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/USZ6S0072108.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfacb05725113d92722f74a95fde864939707fde6aa7b28b293d71d5ca2b9f95a. 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/USZ6S0072109.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x276e3c70f6ce8ba741ff912e90c1c20d52651c01366cc2801f9eb10237824ba4. Chain 2 (Bitcoin): anchored in block 960291 (2026-07-30T18:23:33Z), 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/USZ6S0072101.
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 0xe0f040e9fb483cfc1fab12dcbfcd189b1d3bebc04c17b671c89bf123c1e906bc. 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/USZ6S0072103.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe4d008d95f6cb8a22403eca8002fdfe5f48c62f0d27139c3d9cc89eb2184ed2c. Chain 2 (Bitcoin): anchored in block 960344 (2026-07-31T04:14:58Z), 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/USZ6S0072104.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x607e0ad25dbe9cf2a9adb87c06c523e2a1f1c8ad20dc568fdc5b895a0fae59c0. Chain 2 (Bitcoin): anchored in block 960379 (2026-07-31T09:25:34Z), 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/USZ6S0072105.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xebc0f9a151770cab47dd186cbc64cf8c760fe5b39db7c97c90825bcbbab70a60. Chain 2 (Bitcoin): anchored in block 960435 (2026-07-31T16:33:26Z), 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/USZ6S0072111.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x970b57f8a996aa0cb009b28f364bf765be7e94b8854b0b57840fcdd1a1d6c3e7. 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/QMAAK1830790.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x20f8e12b2d2d3cf4ce895e1d3d8cf37de2d6e09dcf11dd075686c87294657ed8. 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/DKARS0400505.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe300a5beb78a2e28c3ae3da722565425ea2be93d657c04b5255be94e54d05ede. 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/USSM19500541.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2acb462a3d13092b84ca9f243a113098a77d7a2d107ac21735ae1325b5d917b2. Chain 2 (Bitcoin): anchored in block 960288 (2026-07-30T17:41:38Z), 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/USSM19500540.
Thank You, Duke! - Our Tribute to Duke Ellington
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdc8f7b57bc14639b63b0e56f81dc2fd3f021e08aace59bb241508fee70ac056a. Chain 2 (Bitcoin): anchored in block 957020 (2026-07-07T09:18:01Z), 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/USZ6S0000402.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbceff56998322e62bdbce1a4cfb917722c960429bf16efed647d05b5b1241d0e. 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/USZ6S0774506.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb47a8d50a791a211ba8d8bf12d27abe994975dd8f124716ae5ed7df58b5be6e0. Chain 2 (Bitcoin): anchored in block 960183 (2026-07-30T01:10:20Z), 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/USZ6S9900310.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x712f4144cf705331824db979fa3b84236d87d28340f60989498cc8741fa6ca19. 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/USZNV0602434.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd5c4711016d7617347907f8403dd7144b807487427c3b3be4b53810e480765e9. 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/USSM19601380.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe18d7f6145d1f72e9947e542dbff729c8496fb29120d55a96e682073c98f2c93. 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/USSM19604576.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5bc684440dc2f942bc25c09828c176788bdc8c580315595671b1de17f24f1abe. 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/USSM17400204.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf18f267d2fdbb052f9d3411a307294c434ac841e13e2726e4af40d91827601a6. 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/USSM19917241.
Why Can't We Live Together (feat. Diana King)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4a95fb2bb578d40cb14b36bb3c77f934cce150196b22e9f52468c09154386ba8. Chain 2 (Bitcoin): anchored in block 959146 (2026-07-22T15:41:47Z), 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/USSM19702515.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe06eb0470aa1be3c0c132729ad49a9cb2d9d6bb057bf77458db0062d3247cb16. 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/USSM17000811.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3ad703276a73bcb406b1a73e401bb46057772c5ccf18077dcfb78a8d942e7362. 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/USSM18300612.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6ef60f50b7adbfd9afaed35efd334d793a4215c18e0f7e69d580b7550c9dac4f. 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/USSM10002545.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe18d7f6145d1f72e9947e542dbff729c8496fb29120d55a96e682073c98f2c93. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/USSM19604576.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb2713f6aa95a007562d9181763ab5253712284b89850a0ff5e1e7dbe231de278. 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/USSM19604391.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfb64187ad64dc4f752404b840c395136b132ee59846f2f29459f7855bcb7792f. Chain 2 (Bitcoin): anchored in block 956894 (2026-07-06T07:53:57Z), 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/GBARL8900064.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5965bbbe4ff67a845aa2a366757cbc073396c40e930260d51665b7de049df56b. 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/USSM17900501.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xae549e2062eee4d72bbba79a84e5fd9ec8fc419de0bef95120cefdf2a81eb7f2. 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/USAR18600113.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8283eebf4d89d3e5867fb831966de1aca0c88357012616ff586762259c361ace. 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/NLH212100234.
Maestros of Cool - A Tribute To Steely Dan
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1a33f9641c7fb2f0fe239f080c7b1748e22dcb05e41d4453f9314a3d5f116394. Chain 2 (Bitcoin): anchored in block 956894 (2026-07-06T07:53:57Z), 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/DEZ940671101.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3f03dfd26c0d55a4f523aff5a2fa9a39c8b06b4e5bdb29c3cea647e51e5e172f. 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/DEZ940671111.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x42575bd1f812958f5cb9b0fa72d11b38c9032ca9324db7008120c79fa15aecd6. 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/DEZ940671122.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe552f29aed14171377f20d6a3a2e3e77fb34e8f9c480859e0158372b929704d9. 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/USHNR0004103.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2fcb295d5d1621373ed7fa29e24349cc932ec3a493f247bae2c5e1f9c1dcfd14. 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/USHNR0004106.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x63368e30e40250ffe5861ac946353bbcd4de0e96177ef0f7441125f1a4a26b46. 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/USHNR0004107.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd0f93acb5df018bc495bb36805c0f8267e1cc863b06d45b2e9244ad34a9b784f. Chain 2 (Bitcoin): anchored in block 960481 (2026-07-31T23:51:35Z), 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/USHNR0004105.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbf87f153cb91beca2a071007b8546825a2f27d5d9a12cae74905813fafc99f6e. Chain 2 (Bitcoin): anchored in block 960473 (2026-07-31T22:27:44Z), 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/USHNR0004109.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdc1a127367a3e47da96ee8a1eeca9df883c8c876ae0d7fd30e9db10fd121dc76. 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/USZ6S0000405.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb0a1b38e4272cdd369c89b0633dd5b7a8de15ab347771e0a6a69c897d2ced05b. 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/USZ6S0000404.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5d7b8fe330539939b1bc87d7bbe3c92999005979b12f8e38f90977c9738ebd4c. 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/CAJ229815330.
At Jazz Jamboree Warszawa 1991: A Tribute to Miles