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 0x3ebf8f4650a39510952941eaec0caa479c14c3c72d6385f222c44eb2c8bb0864. Chain 2 (Bitcoin): anchored in block 953626 (2026-06-14T11:41:45Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/26d069f4-a5cd-4601-b334-e3f29cf7c501.json and https://artists.proofprofile.net/proofs/artist/26d069f4-a5cd-4601-b334-e3f29cf7c501.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 0x0690df7d9c06dfcc8d06cb83dd49043185cadf6890e6c261e8015ee88e7bde75. Chain 2 (Bitcoin): anchored in block 958749 (2026-07-19T16:40:35Z), 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/JPK000300365.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x660ff62713695368b420570ccb28e98f4ac8a4a064c6bdacbf29df29642d9571. Chain 2 (Bitcoin): anchored in block 958322 (2026-07-16T23:28:33Z), 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/JPK000200331.
KJLH / Direct From L.A. / Milestones / The Great Tokyo Meeting Box Set "Objects Appear Closer"
メモリアル・オブ・ハンク・ジョーンズ 〜未発表作品集〜
メモリアル・オブ・ハンク・ジョーンズ ～未発表作品集～
Cheerful Ambiance for Classy Restaurants
Pulsating Music for Unwinding Sky - Latin Piano Jazz
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1c3d6f0d5445376b47e1b3d5312c11d379e1d81566c3e0e0d5e9225ff537d96e. 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/JPK001000045.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x54e7ebc3c5ee8bc78d80973a8ac838fdb605a0c8be08eff9fae94bbc7924f5a5. 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/JPK001000049.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8f113b5eb284a59828d4cfa1a1471006dfec80920bcbd3da7a3bcfe8c1d6f4d5. 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/JPK001000051.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9500e7942a1885fefb6a2531431768e81a601b9e497cdf2bd5ecd2b37a958f23. Chain 2 (Bitcoin): anchored in block 960185 (2026-07-30T01:32:48Z), 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/JPK001000041.
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 0x4d3d5f71b1b3afc106596e2b5c441b29f253aff8397a581fd6b48044ddff574b. Chain 2 (Bitcoin): anchored in block 960160 (2026-07-29T22:48:59Z), 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/JPK001000042.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x824e0d20563cc9c493348addb49a5533f20c7c80105e7fabd0e23a6c682d115f. Chain 2 (Bitcoin): anchored in block 960309 (2026-07-30T20:35:49Z), 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/JPK001000043.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6693263a2586fbb77ee74824d7f4296e74add594ac66aed15de1f2ba89333c2b. 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/JPK001000044.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe110527ce6ecd7dda67f861e4d18ddc38e556b217ec19dbe08adf23f26c8e2c8. Chain 2 (Bitcoin): anchored in block 960348 (2026-07-31T05:17:02Z), 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/JPK001000046.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeca53060a16136f997f527c0f5d59045a55bfdce3a62f31288d492dc1b8aefc1. Chain 2 (Bitcoin): anchored in block 960419 (2026-07-31T15:20:33Z), 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/JPK001000047.
フライ・ミー・トゥ・ザ・ムーン
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5f62ba1e001c9c6f0c5c82e324a741867d795fad93790bb83dd019d6f54cafb7. 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/JPK001000048.