Ian Ernest Gilmore Evans (né Green; May 13, 1912 – March 20, 1988) was a Canadian–American jazz pianist, arranger, composer and bandleader. He is widely recognized as one of the greatest orchestrators
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 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 0xb6e095e0d67089bcb4017354e8bdf352e3e9d60c1b29c768dcab4e7d9a7bc6d0. 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/a592f279-3dcc-42ab-8cc7-48301ba234fe.json and https://artists.proofprofile.net/proofs/artist/a592f279-3dcc-42ab-8cc7-48301ba234fe.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 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 0x5b1afed37e2976a3f27bee8e0fbde6eda72e96732dc997d7f14ac93402597abc. Chain 2 (Bitcoin): anchored in block 958991 (2026-07-21T10:04:40Z), 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/USFI85800084.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0742276e62c1c63c41ac4203a807951de4df0adb5672ebc0433d05f474600f5a. Chain 2 (Bitcoin): anchored in block 958985 (2026-07-21T08:39:15Z), 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/USFI85800085.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfacf4b89f60a50adf9a5188a3cea1ff71e813b62e67de773fa47bb2e5c3e188c. 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/USBN20600205.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7a428b35afb39d12fd7bace0360771d67403c7815a685b68caded2d92eec4571. 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/USBN20600207.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeb40b154f9f9b811bff2f665a32adc5490ace54f2aa803b6d143242989627ad1. 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/USBN20600208.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x16c7e1b9463a98e4f4a7ef50f9f22fd422d4cedf83e6e6a7696406eeebfa0794. Chain 2 (Bitcoin): anchored in block 958316 (2026-07-16T19:42:29Z), 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/USF096425170.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x31984960c89e60f1d156c9d89ec4d2b6846fa69ef6f4defaa8c6b931421872fd. Chain 2 (Bitcoin): anchored in block 958501 (2026-07-18T05:33:04Z), 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/USF096425200.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa3e97872dbaf27b6d4a846c2f6e8b53029e085ab1dad68bc0f8f0b8527a00ff8. Chain 2 (Bitcoin): anchored in block 958501 (2026-07-18T05:33:04Z), 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/USPR36400061.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdccd26c76917ee1e0d608d459af62d8655fe1c7911db315bcec51b1f3215b8da. 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/USPR36400060.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6c1da4428eec047316b6183aa28eb2eb1a87dba461940e8a79b7561e0ae61316. Chain 2 (Bitcoin): anchored in block 958863 (2026-07-20T10:27:46Z), 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/USBB10100928.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb04a261f72ed14222a0f33a338b83dc5d5a115f7897157cce559d4b24bfb10c6. Chain 2 (Bitcoin): anchored in block 956822 (2026-07-05T18:48:28Z), 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/USBB10100929.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x517fe0eba828c2ec9df8fe13bce7d803b4bd1cc23bdf14826b233882bab71a48. Chain 2 (Bitcoin): anchored in block 958991 (2026-07-21T10:04:40Z), 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/USBB10100934.
Listen to the Silence Live At the Public Theater 1980
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9966025afcef3910d6deef3f510dff0cb053aa485547c683d3f2a1de5d4249f8. Chain 2 (Bitcoin): anchored in block 958407 (2026-07-17T12:08:48Z), 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/USPR36400059.
The Real Birth of the Cool. Studio Recordings (feat. Claude Thornhill & Lee Konitz) [Bonus Track Version]
Gil Evans: The Complete Pacific Jazz Sessions
Nel cielo dei bar (feat. Gil Evans, Lee Konitz e Ron Carter)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x46438d88db41b5a7f6e1a15357f6e1550ffec172b72fe1838f5dc7d3e5e7e182. 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/ITR008600257.
Una sigaretta (feat. Gil Evans e Ron Carter)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd4de3aaa3129ab94c3b40af6157d19998285dae6bed9cc3259a7778feeb285ba. 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/ITR008600258.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x62c90e11a9b919fbf9ac5ad5897aa8778a9b6586ba33a61432dcfdca41a0908e. Chain 2 (Bitcoin): anchored in block 960121 (2026-07-29T15:22:21Z), 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/USX761394005.