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 0x1053991c9cc1e42337c7de3f7225d7ce1b52947951b903c5ce028dea84458564. Chain 2 (Bitcoin): anchored in block 953423 (2026-06-12T21:20:00Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/fe924b49-1f8f-49bd-aa7c-17ea186eb387.json and https://artists.proofprofile.net/proofs/artist/fe924b49-1f8f-49bd-aa7c-17ea186eb387.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 0x4f754d0ad84dba6a721234703a96dedbd857e32685393687343b25796927dc39. 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/7jyqWifqQ5iqhVIR1q2Lqp.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/7jyqWifqQ5iqhVIR1q2Lqp.
「機動戦士ガンダムSEED」エンディングテーマ あんなに一緒だったのに
Mobile Suit Gundam SEED Ending Theme Anna ni Issho datta no ni
MOBILE SUIT GUNDAM SEED Original Motion Picture Soundtrack 1
「.hack//Liminality 3」オープニングテーマ 君がいた物語／「.hack//黄昏の腕輪伝説」エンディングテーマ Emerald Green
MOBILE SUIT GUNDAM SEED Original Motion Picture Soundtrack 3
Annani Issyo Dattanoni - TV 1st Ending Edit Version
「機動戦士ガンダムSEED DESTINY」エンディングテーマ 君は僕に似ている
Mobile Suit Gundam Seed Destiny Suit Vol.9 Athrun × ∞justicegundam
Kimi wa Boku ni Nite Iru - TV-Size type1
「機動戦士ガンダムSEED DESTINY」 SUIT vol.9 ATHRUN × ∞JUSTICEGUNDAM
Mobile Suit Gundam Seed Destiny Suit Vol.10 Kira Yamato × Strike Freedomgundom
Kimi wa Boku ni Nite Iru - TV-Size type2
「機動戦士ガンダムSEED DESTINY」 SUIT vol.10 KIRA YAMATO × STRIKE FREEDOMGUNDOM
{"copyright_id":"0xcf8f4b02e22577b137f9dfcbf6f2f71fdf1c12a019541ed4e231a88c4392070e","isrc":"JPG750900838","name":"Annani Isshodattanoni","registered_at":"2026-06-29T00:50:40Z","spotify_id":"6Ms0UlshNzmPu4pJ3GmjCQ","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcf8f4b02e22577b137f9dfcbf6f2f71fdf1c12a019541ed4e231a88c4392070e. 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/6Ms0UlshNzmPu4pJ3GmjCQ.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/6Ms0UlshNzmPu4pJ3GmjCQ.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4f754d0ad84dba6a721234703a96dedbd857e32685393687343b25796927dc39. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/22u0gu0ymesHR3EIKOSnDF.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/22u0gu0ymesHR3EIKOSnDF.
劇場版『機動戦士ガンダムSEED FREEDOM』エンディングテーマ 去り際のロマンティクス
あんなに一緒だったのに live in 2019 @犬フェス
AN'NANI ISSHO DATTANONI live in 2019 @INU fes
{"copyright_id":"0x488d9f3c291ae91e3291ffaa77d42b6eb3d588dadf649fca937fa3b0170308ce","isrc":"JPVI02305051","name":"AN'NANI ISSHO DATTANONI live in 2019 @INU fes","registered_at":"2026-06-28T18:20:31Z","spotify_id":"6GJE9DSV1r8m7rQXIbqZT4","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x488d9f3c291ae91e3291ffaa77d42b6eb3d588dadf649fca937fa3b0170308ce. 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/6GJE9DSV1r8m7rQXIbqZT4.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/6GJE9DSV1r8m7rQXIbqZT4.