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 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
猫サンキュー - ボーカルノーサンキューver
スプリングサマーオータムウィンターチューン - ボーカルノーサンキューver
I want to change the band name. - ボーカル卒業Ver.
君に届かない声はイタリアにも届かない、故にミラノ風
君に届かない声はイタリアにも届かない、故にミラノ風 - off vocal ver.
ウォウウォウイェイイェイ酒ナイト
はたらく君に贈る歌 - ボーカル働かないVer
ウォウウォウイェイイェイ酒ナイト - ボーカル働かないVer
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
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 → block OTSBitcoinBlock must exist at that height 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 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 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.
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 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 (2026-07-06T07:53:57Z), 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/JPB602075855.
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 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 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.
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
kimini todokanai koewa itaria nimo todokanai. yueni miranofuu
toki ga modottara dakishimete… - piano ver.
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 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.