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 0x79de0daa41e0913d68d24f050dc2b2e64dc0d047089f05c8d6dc1276254d2de3. 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/1a3f1077-e720-4e64-840b-fb368bb90746.json and https://artists.proofprofile.net/proofs/artist/1a3f1077-e720-4e64-840b-fb368bb90746.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Snakes (from the series Arcane League of Legends)
{"copyright_id":"0x1f470d449a51a6aa9e53d837fa004ae8071e3a0e374d208c1664501e19cf0eb6","isrc":"QZH6S1900391","name":"Snakes (from the series Arcane League of Legends)","registered_at":"2026-06-01T08:19:34Z","spotify_id":"62AdLIvL8qZYX0FhxVJLND","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 0x1f470d449a51a6aa9e53d837fa004ae8071e3a0e374d208c1664501e19cf0eb6. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/62AdLIvL8qZYX0FhxVJLND.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/62AdLIvL8qZYX0FhxVJLND.
Arcane League of Legends (Soundtrack from the Animated Series)
{"copyright_id":"0x1f470d449a51a6aa9e53d837fa004ae8071e3a0e374d208c1664501e19cf0eb6","isrc":"QZH6S1900391","name":"Snakes (from the series Arcane League of Legends)","registered_at":"2026-06-01T08:19:34Z","spotify_id":"7AEvaz0EOmlqN27o6zpt3k","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1f470d449a51a6aa9e53d837fa004ae8071e3a0e374d208c1664501e19cf0eb6. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/7AEvaz0EOmlqN27o6zpt3k.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/7AEvaz0EOmlqN27o6zpt3k.
时间的答案 - 《披荆斩棘第四季》主题曲
时间的答案 (《披荆斩棘第四季》主题曲)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x20e64541c9f3d9d53b77b09cc55eb8e6a455abcb2a8a5f6258f42ea8774372dc. 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/6PFBjYADUF1QVM97SPypvF.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/6PFBjYADUF1QVM97SPypvF.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x784e864080ab5a5457487ebadafac54532bcdc80a5cc94016c4ac9c5cb228a1f. 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/793aFsDv8L834BrvdGgRKN.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/793aFsDv8L834BrvdGgRKN.
时间的答案 - 《披荆斩棘第四季》主题曲伴奏
{"copyright_id":"0x784e864080ab5a5457487ebadafac54532bcdc80a5cc94016c4ac9c5cb228a1f","isrc":"JPWP02270974","name":"TPIR (feat. MIYAVI)","registered_at":"2026-06-09T16:45:44Z","spotify_id":"5j1RXSJl3JiLJSfdywh5Q4","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x784e864080ab5a5457487ebadafac54532bcdc80a5cc94016c4ac9c5cb228a1f. 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/5j1RXSJl3JiLJSfdywh5Q4.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/5j1RXSJl3JiLJSfdywh5Q4.
Hush Hush (feat. MIYAVI) - Korean Version
Rookie Cops (Original Television Soundtrack) Special
{"copyright_id":"0xbd4ce66149358a05f495eac35ced74551de3933f05352c8fd286dff9484f1f98","isrc":"QZF452009635","name":"Hush Hush (feat. MIYAVI) - Korean Version","registered_at":"2026-06-07T13:00:17Z","spotify_id":"7ys6BVqLd76ztQvc4Qan0L","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbd4ce66149358a05f495eac35ced74551de3933f05352c8fd286dff9484f1f98. 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/7ys6BVqLd76ztQvc4Qan0L.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/7ys6BVqLd76ztQvc4Qan0L.
{"copyright_id":"0x1f470d449a51a6aa9e53d837fa004ae8071e3a0e374d208c1664501e19cf0eb6","isrc":"QZH6S1900391","name":"Snakes (from the series Arcane League of Legends)","registered_at":"2026-06-01T08:19:34Z","spotify_id":"1byMfvmJMRzNBz458rrYE4","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1f470d449a51a6aa9e53d837fa004ae8071e3a0e374d208c1664501e19cf0eb6. 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/1byMfvmJMRzNBz458rrYE4.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/1byMfvmJMRzNBz458rrYE4.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0453216264170bb1fc0461d57734de7ebd823f6a69625a253566931658cb4be4. 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/02U5hLOsFtChL4y2nPVTTL.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/02U5hLOsFtChL4y2nPVTTL.
{"copyright_id":"0x6918f7cb6d134c5125f3bac1a4efa0c7f43470be2de50a46f1d5f3d6cc78cd20","isrc":"QMRSZ2401342","name":"Grow With Me","registered_at":"2026-06-26T20:34:16Z","spotify_id":"0c8pGrCADJAJZRXGUE6UaI","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6918f7cb6d134c5125f3bac1a4efa0c7f43470be2de50a46f1d5f3d6cc78cd20. 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/0c8pGrCADJAJZRXGUE6UaI.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/0c8pGrCADJAJZRXGUE6UaI.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2deb5504394b5f16a3083e302d07d13f4b283dc5739b9e8b51681db7a4635393. 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/5pnacvKAJMVtGc30ymf2zs.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/5pnacvKAJMVtGc30ymf2zs.
We Love Music (feat. Ainyan, INORAN, Ken, J, Suu, TOMOMI, HAMA OKAMOTO, HARUNA, Michiya Haruhata, Hino Jino Kenji, MAMI, MIYAVI, Yamauchi Souichiro & Rei)
{"copyright_id":"0xfdc24e4abc35adad4e1560401d36ca70b2100b9fed14c0b2e388b00c2b7738d4","isrc":"CA6D21800326","name":"Bliss on Mushrooms","registered_at":"2026-06-04T15:30:04Z","spotify_id":"4VsWKMzwVL3fW0sUXrPk7Z","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfdc24e4abc35adad4e1560401d36ca70b2100b9fed14c0b2e388b00c2b7738d4. Chain 2 (Bitcoin): anchored in block 956349 (2026-07-02T11:34:59Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/4VsWKMzwVL3fW0sUXrPk7Z.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/4VsWKMzwVL3fW0sUXrPk7Z.
{"copyright_id":"0xfdc24e4abc35adad4e1560401d36ca70b2100b9fed14c0b2e388b00c2b7738d4","isrc":"CA6D21800326","name":"Bliss on Mushrooms","registered_at":"2026-06-04T15:30:04Z","spotify_id":"4dmaHfOst34Zb9sNdKQ94o","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfdc24e4abc35adad4e1560401d36ca70b2100b9fed14c0b2e388b00c2b7738d4. Chain 2 (Bitcoin): anchored in block 956891 (2026-07-06T07:16:32Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/4dmaHfOst34Zb9sNdKQ94o.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/4dmaHfOst34Zb9sNdKQ94o.
アニメ『トライブナイン』オリジナル・サウンドトラック