1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. Open OTSProofURL → extract Bitcoin block number → must equal OTSBitcoinBlock 3. GET OTSBitcoinBlockVerifyURL → block must exist at that height 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 0xdff7dd0e7a4c5bc20450a00c82a8ea6ec21e835b6dc04a17cf5549346ee8f98d. Chain 2 (Bitcoin): anchored in block 953408 (2026-06-12T19:28:13Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/f2ec654a-4cc2-4371-958d-99e5091bf591.json and https://artists.proofprofile.net/proofs/artist/f2ec654a-4cc2-4371-958d-99e5091bf591.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
{"copyright_id":"0xf787560352dcb2c1da2b0f3b319fdf2cb815c0ce6b5acc32acd79d53ec7f0e8f","isrc":"JPKS09800484","name":"Sony romantic electro wave","registered_at":"2026-06-29T08:44:02Z","spotify_id":"6XDDIHrfNH5Tq1RCvSzBWk","type":"track"}
1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. GET OTSBitcoinBlockVerifyURL → block OTSBitcoinBlock must exist at that height 3. Read CopyrightID inside OTSCanonicalRecord → must equal the CopyrightID above 4. GET OTSVerificationAPI → pre-computed 6-check result from server 5. If all match: this entity was registered on CopyrightChains at OTSTimestamp, independently verifiable on Bitcoin
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf787560352dcb2c1da2b0f3b319fdf2cb815c0ce6b5acc32acd79d53ec7f0e8f. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/6XDDIHrfNH5Tq1RCvSzBWk.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/6XDDIHrfNH5Tq1RCvSzBWk.
The Good Timing Of The World Of Love Song
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb68ce004ced1ea0d35873278c3bb284841b0493292c3e4df8d53c8cd84bf464a. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/3pNyb2AwpS7tlaIzyqPxGH.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/3pNyb2AwpS7tlaIzyqPxGH.
Emotion Heater - remixed by Yoshinori Sunahara
Every Home A Prison(Yoshinori Sunahara remix)
No Boys, No Cry Original Sound Track Produced by Yoshinori Sunahara
SUN BEATS DOWN - 2021 Optimized Re-Master
THE CENTER OF GRAVITY - 2021 Optimized Re-Master
SPIRAL NEVER BEFORE - 2021 Optimized Re-Master
ECHO ENDLESS ECHO - 2021 Optimized Re-Master
HOLD'ON TIGHT - 2021 Optimized Re-Master
JL005便で ~Flight JL005~ - B747-246 Mix by Yoshinori Sunahara
{"copyright_id":"0x92b4d3ad8ffe163d870cbf1c20bb136a2c524f62647e8fb7bce0c50ee05fb743","isrc":"JPPO02204059","name":"JL005便で ~Flight JL005~ - B747-246 Mix by Yoshinori Sunahara","registered_at":"2026-06-08T11:35:45Z","spotify_id":"4OaCgMgtPAgBJtcsMYfwy8","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x92b4d3ad8ffe163d870cbf1c20bb136a2c524f62647e8fb7bce0c50ee05fb743. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/4OaCgMgtPAgBJtcsMYfwy8.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/4OaCgMgtPAgBJtcsMYfwy8.
Good Times - (Bad Times remix)by Y.Sunahara
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6c7541c7b58965b6eef70c234added5b00de8280a67cf8690fcd70a26e36a7df. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/6ZL6hvGZYZWQvzc9agiDMt.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/6ZL6hvGZYZWQvzc9agiDMt.
{"copyright_id":"0x9967f23eab9b2be7150bab74dbc243d64685516f94aca0f2760a1e51756f14a9","isrc":"JAPL01901280","name":"BODY TO BODY - YSST remix","registered_at":"2026-06-19T14:48:14Z","spotify_id":"2T2PPOYH0xekmlVj0S6jFG","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9967f23eab9b2be7150bab74dbc243d64685516f94aca0f2760a1e51756f14a9. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/2T2PPOYH0xekmlVj0S6jFG.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/2T2PPOYH0xekmlVj0S6jFG.