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 0x13d07022daa7410dbdbe806cb6d925d67e6a4e7fb4653b6f2de173ebfa40a026. 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/86c54878-50ed-4444-9de2-61192325bb48.json and https://artists.proofprofile.net/proofs/artist/86c54878-50ed-4444-9de2-61192325bb48.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Believe in your mind - Instrumental Ver.
L'éveil [feat. Katali] - Instrumental Ver.
I'm here for dreams and you - Instrumental Ver.
The Girl of Possibilities - Instrumental Ver.
Spring Evening Butterfly - Instrumental Ver.
Arcaea Sound Collection: Memories of Wrath
{"copyright_id":"0x4e682bee014e55a1582dda81b9f41cc46c9004a01a96baff554f596e502dce75","isrc":"TCAGF2286605","name":"Lost Desire","registered_at":"2026-06-08T11:30:52Z","spotify_id":"2MPdylbENyEqW0AWXaNBPC","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 0x4e682bee014e55a1582dda81b9f41cc46c9004a01a96baff554f596e502dce75. 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/2MPdylbENyEqW0AWXaNBPC.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/2MPdylbENyEqW0AWXaNBPC.
Fetal movements of Thanatos (feat. Sennzai)
Arcaea Sound Collection: Memories of Light
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9e87ea2e84213808c1a30f56d54e0025197a40086d96349d874b8635a806db1e. 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/2giffTOiXIMDQ3ieJOEgJZ.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/2giffTOiXIMDQ3ieJOEgJZ.
Arcaea Sound Collection: Memories of Myth
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4093edfcd29e7c0331bc758077ec1b3632f7ffd9efe9b55dc70574cd42da55a5. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/0skI6vbLoDbpXLqbtux5aS.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/0skI6vbLoDbpXLqbtux5aS.
{"copyright_id":"0xe000ddf5edaa00e57ea5d93a28e10bc47e46695b83d5f39a47dae0ffe2a64812","isrc":"TCJPS2243264","name":"Komplexe (feat. Sennzai)","registered_at":"2026-06-20T04:43:31Z","spotify_id":"5ZU9XRs2IamX0BrSpHNDnT","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe000ddf5edaa00e57ea5d93a28e10bc47e46695b83d5f39a47dae0ffe2a64812. 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/5ZU9XRs2IamX0BrSpHNDnT.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/5ZU9XRs2IamX0BrSpHNDnT.
{"copyright_id":"0x18c25b40118147b86e5ae32c412fdbc19c8e7e3d698fc33d15b7bbd1879c1c1f","isrc":"TCJPO2144296","name":"La rose jaune","registered_at":"2026-06-27T15:03:53Z","spotify_id":"2XUoJVBavffDvISbuFazeZ","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x18c25b40118147b86e5ae32c412fdbc19c8e7e3d698fc33d15b7bbd1879c1c1f. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/2XUoJVBavffDvISbuFazeZ.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/2XUoJVBavffDvISbuFazeZ.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x93b6b1abb92458c6630cae8f8d18c5b1c18dca613a77a2d04bd2b5bf0165313f. 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/4N5OytpKkgymvFY7hGjtbq.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/4N5OytpKkgymvFY7hGjtbq.