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 0xa7e9bcb5605ff187f4f404a5a4cac092c7f48483de84df79288008992aab234d. 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/5f1db8f2-b457-41bd-82cc-cbc9f29a4afe.json and https://artists.proofprofile.net/proofs/artist/5f1db8f2-b457-41bd-82cc-cbc9f29a4afe.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 0x190eb57894bad09396d3fe9cbefaddcb23a323d08e9c445488500f2d9929453b. Chain 2 (Bitcoin): anchored in block 956420 (2026-07-03T00:42:11Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/2pk3BD5aaCx5tLmk8GdjSW.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/2pk3BD5aaCx5tLmk8GdjSW.
革命バーチャルリアリティ - Hideki Ataka Remix 超覚醒 ver.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x19aa1a9a76dff6a87bceae10ab83300098ba242025781cff589d76ff5a0069bf. 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/04fskev7MMFHxvrKA28A31.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/04fskev7MMFHxvrKA28A31.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe564ac806c63c8dd413c2c6cbfa3a79be61b070a0028bd9b7b7b8aa59ba2f883. 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/3dVP9zni5Qe9cPWRkyNwp2.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/3dVP9zni5Qe9cPWRkyNwp2.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9ea7724a05f37df0e9e05e73816d2dd684e04ba9f7bc834dffa77a437c1d1d39. 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/1q6w9wigHfJGni51cfcTwI.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/1q6w9wigHfJGni51cfcTwI.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x743b78856f524990f56815797c49b4b1613a71a75bf8fcef27e13fbfd0a5647d. Chain 2 (Bitcoin): anchored in block 956351 (2026-07-02T11:38:34Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/7DUS8ZPaN6phzoa4krl1eX.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/7DUS8ZPaN6phzoa4krl1eX.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xee6fdc02992c86424d8add00e236d760d70a8052f817855e46f271cabdea6118. 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/10gftDC7gRzjMtlLZkaBvp.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/10gftDC7gRzjMtlLZkaBvp.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x11cd65dd6d75ef1e46cae966384720d5764457f7b1e42a0f25316f97ad9f1dfb. 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/3r1HIIvLM6X9lNKVIll52X.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/3r1HIIvLM6X9lNKVIll52X.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x190eb57894bad09396d3fe9cbefaddcb23a323d08e9c445488500f2d9929453b. 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/5H2WquKi98deiLyaZrIQzQ.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/5H2WquKi98deiLyaZrIQzQ.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3b3d565b7127b916085fe54b06181e03a2e9f1f6eda6263d26333394fbbb30be. 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/1TCa8jm5EMCrTqquB8K00O.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/1TCa8jm5EMCrTqquB8K00O.
神聖革命バーチャルリアリティ - 花譜×VALIS
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf87688d521b8be70205293923418bd3525e728fa127c413859017a2d79b26e32. 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/3Mrw7rRjVstKP7Py9ElGBb.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/3Mrw7rRjVstKP7Py9ElGBb.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2795c317a787293fe7f6d132e4f008149977fde65013f3a44bd30eed51f74df3. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/1cUy1MMp9JVg6B8PgExPE9.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/1cUy1MMp9JVg6B8PgExPE9.
青春イマジネーション (瓦利斯飯店ver.)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2795c317a787293fe7f6d132e4f008149977fde65013f3a44bd30eed51f74df3. 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/6dtcqMUPKAPmhxsPVH2hnL.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/6dtcqMUPKAPmhxsPVH2hnL.
ピカピカキャンディラブイズム - 覚醒 ver.
Cover Live Album「SINSEKAI SPECIAL COVER LIVE」
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x81cf781acaf865b1d198b49f497450813fd05301478539bfb38c028c2d8e8de3. 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/4rSokMaA2acEA35AWIr1Tx.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/4rSokMaA2acEA35AWIr1Tx.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbb9e117503606bbfdd22be5737ad78b7433aa17e0c2ea39c8abe3ef6544e8144. 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/3jimym7atkltAsiQjxQzyE.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/3jimym7atkltAsiQjxQzyE.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x190eb57894bad09396d3fe9cbefaddcb23a323d08e9c445488500f2d9929453b. 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/0SrojilvJsX1nKDaBWWwRq.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/0SrojilvJsX1nKDaBWWwRq.