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 0xec6de16619713fb9a92716be3a0918a854f2bf8bf9f61b514a723bad19a7efee. 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/98567be9-4794-4aa8-962b-4b1854463d87.json and https://artists.proofprofile.net/proofs/artist/98567be9-4794-4aa8-962b-4b1854463d87.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 0x8e7dd0a99aeabf46ac510e8e30158e7aff94b719e08aee42905e0082bd26cbf0. Chain 2 (Bitcoin): anchored in block 958163 (2026-07-15T16:21:06Z), 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/FRX629871010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x26b591bae4e1893c74af71fb12c350a97db7106a8cb507d8b726e0e2050782d8. Chain 2 (Bitcoin): anchored in block 958959 (2026-07-21T03:51:22Z), 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/FRX629871050.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x79f9fe6c8dff4dff83053423c4542171e07e324e74410e1c79693bccd357c9dd. Chain 2 (Bitcoin): anchored in block 958208 (2026-07-16T01:25:32Z), 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/FRX629871060.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5698e35fe542663199515fcd045cb03deb743e576f3de7d72ba6c17e096d0bc9. 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/FRX629871080.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9a2951bcd2721f1c3b4c601ce665c2c326f632fd633f0dc060892d5152da8160. Chain 2 (Bitcoin): anchored in block 958341 (2026-07-17T02:48:02Z), 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/FRX629871090.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb0c88f74ab9e9276b8336b6cf89a929ab0a890c4f7f34ea12db820ecf27962a1. 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/FRX629871110.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x97c9b7f15f7cc5383acb16ff22b9ab6f0f08e2d04d50e61f11c3eb7a6b6e3eb0. Chain 2 (Bitcoin): anchored in block 958775 (2026-07-19T22:44:29Z), 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/QZP7F2552125.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbd7271d75b5075c6995b7abb872dad18f86e58b4ad377aacdef50d04e873ec7c. 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/QZP7F2552127.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x870dd7c46530f3a38e55ae73f5751c5d8428e0196a6ee84388032b65f79191d7. Chain 2 (Bitcoin): anchored in block 958931 (2026-07-20T21:15:01Z), 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/QZP7F2552130.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x203caa68a468dd0a366146ad1c5cd52e5004734e63a4c01eb3f86f9fa36d37dd. Chain 2 (Bitcoin): anchored in block 958947 (2026-07-21T03:39:25Z), 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/QZP7F2552131.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe5d90547d01d1354a525b90ec69543d9bb5e3c4c8435e7a182d54bbbacf98296. Chain 2 (Bitcoin): anchored in block 958931 (2026-07-20T21:15:01Z), 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/QZP7F2552132.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x48cd62b746c78a02d6b4ac734a208648f31f88ae22d2fd4e1ff3c33429a0c2b5. 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/QZP7F2552134.
Midnight Swing and Other Tales from the Cool Side
Sketches of a Smoky Room: Stories in Sax and Rhythm
Dancing with the Dawn: A Journey Through Jazz and Blues
Velvet Shadows and Neon Dreams: Jazz for the Restless Heart
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa9554f4882d146627fb120da47957e880c950222492c9c082608b3006870ee81. 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/FRX629871020.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5d90c7bdd0b87e6f0b47cfd04900231649fbf8984657c5ee409c9ad33f6d7e60. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/FRX629871070.