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 0x764adb9b853bb035e1143c6d23fb32188db8d414f037e266b1d88d53119dba28. 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/c30d98c6-53d0-45a7-aaa6-19bc3bef3dd0.json and https://artists.proofprofile.net/proofs/artist/c30d98c6-53d0-45a7-aaa6-19bc3bef3dd0.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
スプリングサマーオータムウィンターチューン
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 0x44ef41eb4868e6c759a841b5f14276f04f72b5754312989c594afb7372795bb9. Chain 2 (Bitcoin): anchored in block 959024 (2026-07-21T16:59:36Z), 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/JPB601877858.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdb44f05648ee52dda79d29cb8c6646c8d4a3a2e8c99ba223ccdeb0aa6782761b. Chain 2 (Bitcoin): anchored in block 958985 (2026-07-21T10:55:23Z), 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/JPB601877850.
君に届かない声はイタリアにも届かない、故にミラノ風
はじめての夕闇に誘いし漆黒の天使達
アンダーグラウンドパクリシティ
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe2d0745121e629084b9d2eca88189d4dacc3669228bf0029c07fca866553705b. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), 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/JPB601883974.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1a66cc421bd52cf3534bb0abee1aebe636b21d5aed5e47812b1578a5317826f9. Chain 2 (Bitcoin): anchored in block 958286 (2026-07-16T12:43:37Z), 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/JPB601883975.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4d1d91d1fbfc5d4be272e4ab2d2f2d17871fe28ea9627263ba8a914e7e734a43. Chain 2 (Bitcoin): anchored in block 957771 (2026-07-12T23:27:28Z), 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/JPB601883976.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7397e0d07f4b5f13b042346fedf06517394c188bf438d2dc1071a8a2b69ffb57. Chain 2 (Bitcoin): anchored in block 956857 (2026-07-06T01:26:17Z), 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/JPB601883977.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9e7417c182f5b067fb0bd674ab15750986af21e2ad3c43a317dae9359fd361d0. Chain 2 (Bitcoin): anchored in block 958428 (2026-07-17T15:15:14Z), 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/JPB601883980.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf176c9ebe070dbe01ac30eb53b92cb66e624f34f0da0b2a612e6b61ed5c4cab6. Chain 2 (Bitcoin): anchored in block 958544 (2026-07-18T12:14:37Z), 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/JPB601883984.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x01682f1fb7ba372eea501a7dabfcf5c1bca633d16cb60acbf0574c426534ecc2. Chain 2 (Bitcoin): anchored in block 956841 (2026-07-05T22:14:35Z), 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/JPB601895722.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb879b3f6d41467b73ef2704cf06dcf86ecc8079604b1d631a31742ba7487fcb2. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), 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/JPB601895723.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6fea1eb9ab5495e5da44b941ac0955fb4d8013449b8ac0b7ecb09653beebd275. Chain 2 (Bitcoin): anchored in block 956474 (2026-07-03T08:56:35Z), 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/JPB601895724.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3182bb647515643c3b3da1da58dffcc29965ce531fa910a5baeeac96587ae866. Chain 2 (Bitcoin): anchored in block 956856 (2026-07-06T01:25:57Z), 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/JPB601895725.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9968a5cfb4c6386dbafc24c5ef097f071a385c43acde9da7e9e95fc3ecf2baef. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), 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/JPB601895726.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x70fd79324831c7d176d9f444458d07851fa9706f43af0208feac9f3fe44c495d. Chain 2 (Bitcoin): anchored in block 958975 (2026-07-21T08:25:49Z), 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/JPB601895727.
30秒間以上手を洗わないとウイルスは除去できない
2枚目の夕闇に誘いし漆黒の天使達
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf8c8dc2143e1715888849e6312a07445254e3e46b8226e60ec292df26ac54c47. 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/JPZ922105126.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2d8a2fe003280a449465072abd0211fe5454518da19d41095903c956158db031. Chain 2 (Bitcoin): anchored in block 958761 (2026-07-19T17:49:48Z), 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/JPZ922105128.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfc10aa93c3e9aece37ebe355e6a4a70c82d085de7902470edc3bb6f96312713b. Chain 2 (Bitcoin): anchored in block 956857 (2026-07-06T01:26:17Z), 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/JPZ922105130.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x154277d69c612a8b54e1234ef12239ed604ed99fb309711d57b19f0438b1c2ad. Chain 2 (Bitcoin): anchored in block 956639 (2026-07-04T11:19:20Z), 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/JPZ922105132.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaa4752cf2214a1cdc61323203e665ca0d9b0d464d1c4303f8ae77eeffc8cacda. Chain 2 (Bitcoin): anchored in block 956894 (2026-07-21T08:36:23Z), 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/JPB602075855.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa6602a0640fc61065a585f4581e52092e51610346b183b9f87ee3cf1fd153e98. Chain 2 (Bitcoin): anchored in block 959008 (2026-07-21T15:28:30Z), 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/JPY362100095.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x85c9b6ec92d03c33a5a7613280db4f80c241ad3bc28787bd48747d7c673658f1. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), 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/JPY362100096.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbf93c5a55c97294c8f40a2d26ddb6ffd19b14ef9af28b7c845e65b8b22bc34d4. Chain 2 (Bitcoin): anchored in block 958110 (2026-07-15T06:57:12Z), 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/JPY362100071.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x53dc7b803d6cb4a2058033ca1acd39c9f46092528b35bea85300c8eb47e33728. 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/JPY362100093.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x30173dd399f0fba14274fa838f2d879ac9f4490086f9942224c1612ba329e325. Chain 2 (Bitcoin): anchored in block 956857 (2026-07-06T01:26:17Z), 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/JPY362100097.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x63beb814714c4683265e2afb4340b16f455b1b95e486896d8427ce4d2cb7e5f1. Chain 2 (Bitcoin): anchored in block 958670 (2026-07-19T05:26:23Z), 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/JPY362100098.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4e6a4b32d9737fb21778eb6362d51ea69ba8bde0df0ccda95411e591d315fb3d. Chain 2 (Bitcoin): anchored in block 956656 (2026-07-04T14:03:39Z), 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/JPY362100154.
10年目の夕闇に誘いし漆黒の天使達
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x83de58cf2b0fbaf3ff9b69eb02296f09d8f4462ce7347bb943fc813aa4824ba2. Chain 2 (Bitcoin): anchored in block 958796 (2026-07-20T02:25:08Z), 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/JPR752400058.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd0f15172e1312af9f4d15f9a27c017d50f2e429c4a16a221bd3e2ff862191697. Chain 2 (Bitcoin): anchored in block 956738 (2026-07-05T04:47:21Z), 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/JPR752400060.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6d4f09b3f45d50045e250104fc4c5bd7f16cca9423913a163caedccc9df9106f. Chain 2 (Bitcoin): anchored in block 956856 (2026-07-06T01:25:57Z), 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/JPR752400064.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2f9b3429b4d8775bb768745ae425c154fc9a037a4137d0ac25bfa4a9409180f9. Chain 2 (Bitcoin): anchored in block 958832 (2026-07-20T08:12:23Z), 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/JPR752400065.
ビューティフル・ティーンエイジャー
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x71b88fea8b88b9322cf56ca1a6ca083f9c746bbbb42b26977d9079e956ffefce. Chain 2 (Bitcoin): anchored in block 958286 (2026-07-16T12:43:37Z), 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/JPR752400071.
jyu-nenmeno Yuyaminiizanaishi shikkokuno angel
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5885f6be78bed133b84be0a85378d31798f95c8920aa4c417b471c4a9e5f2383. Chain 2 (Bitcoin): anchored in block 958761 (2026-07-19T20:07:26Z), 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/JPR752400182.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa639ab80a0744ce0c756a39a1267358b426a8349e118e556589420b3aa5af277. Chain 2 (Bitcoin): anchored in block 956474 (2026-07-03T08:56:35Z), 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/JPR752400192.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x28d89ad3033f01f248bd3558e1d549f3f1f6fc3da182b6f9859dfd21e340128d. Chain 2 (Bitcoin): anchored in block 956639 (2026-07-04T11:19:20Z), 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/JPR752400230.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x95a7ddef044238aa3e9a40e6cf1c813e801abc856a9a35b336f15336467e5013. Chain 2 (Bitcoin): anchored in block 958157 (2026-07-15T15:31:49Z), 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/JPR752500029.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x95a7ddef044238aa3e9a40e6cf1c813e801abc856a9a35b336f15336467e5013. Chain 2 (Bitcoin): anchored in block 958996 (2026-07-21T12:53:19Z), 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/JPR752500029.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3e12d90745a4535b234d7c7f2f12ad382dfc085daa387d01170d8bdf2af31725. Chain 2 (Bitcoin): anchored in block 958157 (2026-07-15T15:59:09Z), 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/JPR752500059.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaf6adb64a7383c0c36b5aaebb3c6c3ded040f4ccf2f8b728b43a2826739521a1. Chain 2 (Bitcoin): anchored in block 956894 (2026-07-06T07:53:57Z), 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/JPR752500058.