Joe Roland (May 17, 1920 – October 12, 2009) was an American jazz vibraphonist. Roland began as a clarinetist, attending the Institute of Musical Art (later known as the Juilliard School) from 1937 t
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 0x29aad8363d72b76a55e9d90ddb5e87196b69c88cc9bdd204c54f81a090792072. Chain 2 (Bitcoin): anchored in block 953778 (2026-06-15T11:57:35Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/ca3636be-2fc6-4b7e-b763-6409afd41e9d.json and https://artists.proofprofile.net/proofs/artist/ca3636be-2fc6-4b7e-b763-6409afd41e9d.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 0x9ebcba742acb52aa0fdc7f3b8e555e1dd3ff28e5090996f423eb83693fe80e28. Chain 2 (Bitcoin): anchored in block 958864 (2026-07-20T13:06:05Z), 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/GBN8H2428086.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf5197a2f025987b90c2a71cdd47ff43c6bc28170584bc359634c9f63c46c7e50. 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/QMSGD1230296.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x69e4fa3ef16313321835a5276edcf2ef6d91bff28c1b0dd8149cfe21d822b8ff. Chain 2 (Bitcoin): anchored in block 958594 (2026-07-18T18:05:01Z), 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/AUXN22122235.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6643a3835dc35ccb1ca1772a4bb20e8ac9af4ca265e01157626044d61096b331. Chain 2 (Bitcoin): anchored in block 957882 (2026-07-13T16:48:10Z), 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/AUXN22122236.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd848a2a6caeffcc122fa6203e2a58d39dfa34844b8fb6671eb036b051358c16e. Chain 2 (Bitcoin): anchored in block 959047 (2026-07-21T19:17:28Z), 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/AUXN22122242.
Complete 1949-1956 Sessions · Symfonet, Quartet & Quintet, Pt. 1 (Remastered)
Complete 1949-1956 Sessions · Symfonet, Quartet & Quintet, Pt. 2 (Remastered)