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 0x945d9866c39b2679fd94234ac41cf3666ad9d156c4d37d7e0e750c4484be2fb2. 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/b2ef301d-2941-4aef-b46f-59722985e926.json and https://artists.proofprofile.net/proofs/artist/b2ef301d-2941-4aef-b46f-59722985e926.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
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 0xc031690f8b4791f380a0430739ccbade7babec3ca3476471a2e3b57730a12d9c. 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/1K2n3HW9DjJxvzw5kPJAsm.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/1K2n3HW9DjJxvzw5kPJAsm.
Jam in the Van - Ginger Root (Live Session)
A Cruel Angel's Thesis (Neon Genesis Evangelion Theme Rework)
Everything's Alright (Meet You in the Galaxy Ending Theme)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf81857f16181b31bb8daa95186c99c673650a9187790c1acdedd5545e9eaccfb. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/2GNj2D1F6fRBYnurxFyPMA.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/2GNj2D1F6fRBYnurxFyPMA.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf81857f16181b31bb8daa95186c99c673650a9187790c1acdedd5545e9eaccfb. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/0Q1EppwbDIYUuMlXKXy6HE.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/0Q1EppwbDIYUuMlXKXy6HE.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf39e590c0c6fc9d009309a02ae27105b984de9a3f4c539d2ac0a77852d62f2a3. 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/0ZRYh0aUzK57Rp8TfPCehc.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/0ZRYh0aUzK57Rp8TfPCehc.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf39e590c0c6fc9d009309a02ae27105b984de9a3f4c539d2ac0a77852d62f2a3. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/79XFskNpEhl8uEWHWRqReH.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/79XFskNpEhl8uEWHWRqReH.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0933487838fc13e1840ac3ca4f0b5cb73813fb51825e43b5ca50ccf0b6d99759. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/1bI7tAe3Z7l5NKMBD3XBO7.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/1bI7tAe3Z7l5NKMBD3XBO7.
{"copyright_id":"0x0933487838fc13e1840ac3ca4f0b5cb73813fb51825e43b5ca50ccf0b6d99759","isrc":"JPPO02303581","name":"Love is Beautiful","registered_at":"2026-06-08T02:25:27Z","spotify_id":"5EpZhqLeL3mevMKiJL9Hzt","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0933487838fc13e1840ac3ca4f0b5cb73813fb51825e43b5ca50ccf0b6d99759. 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/5EpZhqLeL3mevMKiJL9Hzt.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/5EpZhqLeL3mevMKiJL9Hzt.