1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. Open OTSProofURL → extract Bitcoin block number → must equal OTSBitcoinBlock 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 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 0xdf0ea6f0dc98020d0ea58b40847de7c7d85cd1a841b723f610773c79e986876c. 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/b2379f17-91ab-4576-8c27-a8faecdd78fe.json and https://artists.proofprofile.net/proofs/artist/b2379f17-91ab-4576-8c27-a8faecdd78fe.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Even if it knows that love will not reach you
君に愛は届かないと知っていても
レンレン★サマーフィーバートゥナイト
1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1454a56c7953bc5cab6109b7d4904f9979c47381ded80d989d083726985737e0. Chain 2 (Bitcoin): anchored in block 956551 (2026-07-03T21:18:05Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/JPE561601627.
ポップキャンディースウィートタイム
カイカイ★クレイジーエキサイティングナイト
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd384f9002bc455e86171c90c5b18cc70d5ee7d8643555a42dc888750c239ed89. Chain 2 (Bitcoin): anchored in block 956476 (2026-07-03T09:04:44Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/JPE562107156.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x55c371bfa9ca883dc9d42f98b24d85d605167671fcd3a4a384d6c3280a52cb78. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/JPE562107143.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0b449b289efc85499b64aa25afb952c2859ce0a176ec8e317c3497ef7fd4b13d. Chain 2 (Bitcoin): anchored in block 958861 (2026-07-20T10:02:52Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/JPE562107496.
カイカイ★クレイジーエキサイティングナイト (feat. KAITO)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd384f9002bc455e86171c90c5b18cc70d5ee7d8643555a42dc888750c239ed89. Chain 2 (Bitcoin): anchored in block 956728 (2026-07-05T01:43:49Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/JPE562107156.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd353cbb471315745ca7307acf5c7b037cb39dc04ba959f6a32de9fa302bb55eb. Chain 2 (Bitcoin): anchored in block 958122 (2026-07-15T08:02:29Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/JP92Q2301605.
シルバーバレットの弾道線 (feat. 鏡音レン)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x680ab341000bb59f0d9b226be43d900e57c0587f65c544c7c9f493d75763c190. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/JP92Q2302094.
ロストエデンに生きている (feat. 鏡音レン)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe61fe6643258ed4d874a5f918ee13613a50927c40425339ecdc725f28be3da09. Chain 2 (Bitcoin): anchored in block 956889 (2026-07-06T06:56:49Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/JPE562107949.
グルービーな夜を駆けてゆく (feat. 鏡音レン&KAITO)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe605bd57dcdaeaa59351baa71c80408472c8f14ce24bf52553281d9f483650cb. Chain 2 (Bitcoin): anchored in block 956891 (2026-07-06T07:16:32Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/JP92Q2302098.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd0a89ac2a1d3a6a161c6e7510433dcbccad096dba43026f66524fc1fb38704e5. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/JP92Q2302101.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x877e50612dea40da568b0b124128e60077e2a17c8bd2d528e61f6e169d7bcb7a. Chain 2 (Bitcoin): anchored in block 960125 (2026-07-29T15:38:18Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/JP92Q2302096.
1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbd6e0c7dc7f16bfa0947932734881b0b8bb04bb6d2ec851b02be97ddaac9621c. Chain 2 (Bitcoin): anchored in block 960160 (2026-07-29T22:48:59Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/JPE562107956.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb1122a5a45671e346584c29008ae61e45a4e733bb43940ae68f10b73ea345674. Chain 2 (Bitcoin): anchored in block 960163 (2026-07-29T23:20:38Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/JP92Q2200021.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7a4e4009ddc8cab3142a0d2110b8c91df838f6c3858716853d221a9aab1018b5. Chain 2 (Bitcoin): anchored in block 960160 (2026-07-29T22:48:59Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/JP92Q2200918.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x28fd7567b36de0ec0f884632caf781e1f29c08d7c551aa04b4e93c173ce39fb3. Chain 2 (Bitcoin): anchored in block 956420 (2026-07-03T00:42:11Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/JP92Q2301087.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4b0e2a7156ebbcd972b30e371587c51356e9826d0d0c68f445b4c69a65196e44. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/JP92Q2401543.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc00b53a19a52094b74b9f3f4bc2396a2d372db5c93fa70040c3460954e3450b7. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/JP92Q2401544.
"Panda"virus-2014 Append Edit- (feat. 鏡音レン)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x397185f9f8d6d0e9bdae7bd891744516a1cf8e57cbc27ba6258ae60224aa203c. Chain 2 (Bitcoin): anchored in block 957073 (2026-07-07T18:39:05Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/JP92Q2401545.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfe1b1375de831e0752ad20f5681964aca4f22dd78ca1f8189e0488f2d3858774. Chain 2 (Bitcoin): anchored in block 957061 (2026-07-07T16:07:00Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/JP92Q2401547.
"Panda"virus-V4X New style- (feat. 鏡音レン)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x134a6c874a99defe6a3c218da6037c03ec9fda9971eb3b901221164cf0d61c30. Chain 2 (Bitcoin): anchored in block 960185 (2026-07-30T01:32:48Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/JPE561600083.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8f5bca3b560752983c1b0e095025497d0fb9f9e51fc7e6615f9fdc15d3f6b534. Chain 2 (Bitcoin): anchored in block 960181 (2026-07-30T00:53:20Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/JPE561600084.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1cca316244f582baeb298348342f489fc997a4668af6a7103d66daf60ad0a98d. Chain 2 (Bitcoin): anchored in block 960138 (2026-07-29T19:35:34Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/JP92Q2401549.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x92ed2a91f8ecaad1990628c88e5a82279cc933d18302a881672b46e1029765dc. Chain 2 (Bitcoin): anchored in block 960264 (2026-07-30T14:36:16Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/JPE561600085.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x464742acd12c0010ddd83915a38ec79578563fde2149614a733e4f1a3ff21ab5. Chain 2 (Bitcoin): anchored in block 958931 (2026-07-20T21:15:01Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/JP92Q2501781.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x872b54c77963abe471f86261f5a9b4223877e33eac365631f08324e0989dec69. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/JP92Q2502278.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5c6fe9f02bca24f56768dbe5386bf3fa50e8b8eb7f5d3314bf1027fd2bdffb98. Chain 2 (Bitcoin): anchored in block 958384 (2026-07-17T10:57:07Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/JP92Q2502396.