"Naima" ( ) is a jazz ballad composed by John Coltrane in 1959 that he named after his then-wife, Juanita Naima Grubbs. Coltrane first recorded it for his 1959 album Giant Steps, and it became one of
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 0x5db3157c362ed2b4fec45a8f249d042b2d6b2329d47eb6390b04c58620112f64. 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/2eaf55b2-3dd5-4db2-a02e-a1e5b9630797.json and https://artists.proofprofile.net/proofs/artist/2eaf55b2-3dd5-4db2-a02e-a1e5b9630797.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 0xdde750209045e414a9fd4c1e1f5b3024b55c783e502f45d358d430a85f8dbb90. Chain 2 (Bitcoin): anchored in block 958867 (2026-07-20T13:03:12Z), 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/QZ7361804086.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7591b37700057b6185ec48cfe539a5ddcd7c87e4563b6162ba31321ce26bedb0. Chain 2 (Bitcoin): anchored in block 958444 (2026-07-17T19:12:23Z), 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/QZ7361804089.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x832c7556dbed52ae259abb45b3d1fae9ced5171df5ac331b125188c945221337. 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/QZ7361804099.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9cdbb6d862971451dacacb0d899a1a779d0a871f37cd60589b3e8a7f188bb0b7. Chain 2 (Bitcoin): anchored in block 956656 (2026-07-04T14:03:39Z), 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/QZ7361804100.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x89c8a82cd1300dd869dd12b93eec19c17dca7414e0eee2f8143a1e7acfd4bef8. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/QZTPX2381398.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb76fc744486bd14f86e0df73385a6a3d176aa9c87b293edc59465e766a231e69. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/QZTPX2381399.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xffa113ae3ed7eb70461417084172af8865cffa1aaef7f9bfb93b811d0c31be46. 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/QZTPX2381400.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3edd00a80f866b9016cdce3c321e37aa0deb94851e23eedaf12c801ced4f124f. 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/USJE61709937.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf6410f97b861d9440e52f6e113045a97961a15287874fa59accee847d6af1eb9. Chain 2 (Bitcoin): anchored in block 958331 (2026-07-17T00:29:29Z), 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/USJE61709938.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4bf8e5c1548754e7db30fb89d2814824c96d111639fd4817d5452b4a802fa884. Chain 2 (Bitcoin): anchored in block 958658 (2026-07-19T04:09:09Z), 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/USJE61709941.