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 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 0x4386d022c963667a204721cc6fdfe55e0e51996ffdb03522add39012147e30f9. Chain 2 (Bitcoin): anchored in block 953777 (2026-06-15T11:52:51Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/cde084f5-5f3c-479f-b98d-410555d6d004.json and https://artists.proofprofile.net/proofs/artist/cde084f5-5f3c-479f-b98d-410555d6d004.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
強風オールバック（津軽三味線二重奏）
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 0xa903625c66af82b06a876d5a82521fb92d61b2f09da1870a8c7a4bac7bfb0930. Chain 2 (Bitcoin): anchored in block 960348 (2026-07-31T05:17:02Z), 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/JPS321305174.
強風オールバック（本手マイナスカラオケ）
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbddeb902b9bf62bd0c9ce506608a3964b8a3fdbd7c9d1b4178cf0a75deef0932. 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/JPS321305176.
強風オールバック（替手マイナスカラオケ）
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x94b4456d3915da336e9406dee036b5d4daad68a08c93aa2011d485639aa477c4. Chain 2 (Bitcoin): anchored in block 957046 (2026-07-07T14:04:01Z), 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/JPS321305177.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1c2b86ea7debae2f05e8def35b9afa0f20d3c70adc0f7fccf68cdfea83a4ac38. Chain 2 (Bitcoin): anchored in block 960258 (2026-07-30T12:45:34Z), 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/JPS321304897.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeeab7a55fba622c290397b34ba026ecda841bc0f9bd4243e96698b3d64808411. Chain 2 (Bitcoin): anchored in block 960284 (2026-07-30T17:23:26Z), 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/JPS321303551.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x53ca3fc51f337c193df93262ac695dd0fcb9b352948cea9ba7ccf21c07bf8b94. Chain 2 (Bitcoin): anchored in block 960321 (2026-07-30T22:27:30Z), 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/JPS321303552.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0bf7cc6a44601704a97c4535e1930650fb8f2462fe92c4070e91bee0e7415a0a. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/JPS321302811.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc176f65c3e86e53c7e44c6c92f4768af9d8842d48c7a41f1f49acde3545de20a. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/JPS321302812.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe5384f1696ba11cb060f6c4b35ea41bdf622dc272b8dda439fc9efc007003c40. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/JPS321302685.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x723a805502b31951b58fe5a06d85a6f3343f3d5b728ddc83ef9418cbae6f9e12. Chain 2 (Bitcoin): anchored in block 960344 (2026-07-31T04:14:58Z), 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/JPS321302662.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3a8a6894879e9e546900fbe88cd3efc40482b78ba2d088fa1ed2c1d1bca72dbd. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/JPS321302663.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfd1995f27eed757b3218ba12bf431ddc1179cb6ccf608d86bf258de67ec486cb. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/JPS321302664.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x719ac1e26253cbd68473d99c6047d7482a1ea85affdf536e3f27132f93ebc90b. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/JPS321302666.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xedbc7917a0b5927e26c8aa3f3851fc380862ae3a4182fa86aae764da2391a159. Chain 2 (Bitcoin): anchored in block 960266 (2026-07-30T14:44:50Z), 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/JPS321302642.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x48c5025afa4030adc4b4078603051dd7fea338084f33cfac9febf4df5bd000c2. Chain 2 (Bitcoin): anchored in block 960296 (2026-07-30T19:11:09Z), 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/JPS321302643.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x98762f324c8037d4b3f65156d6866c4bf277b9b60ccd2412c0bdcf4b5cd9e1a9. Chain 2 (Bitcoin): anchored in block 960258 (2026-07-30T12:45:34Z), 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/JPS321302645.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2763a2d978337ed9b86c581c1e8e5be5e3d5d9d20c7f98a2be6d470ffe0e062e. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/JPS321302567.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3b6fde332dd7026d3afcba016f06a954e9fdf91b4afaa5850faafdfe9793b8fd. Chain 2 (Bitcoin): anchored in block 960317 (2026-07-30T21:35:24Z), 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/JPS321302528.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2af99d0c3506703b70338de910452fdfdd882cabb014cd9a6a667732f1aabb09. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/JPS321302529.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3640786696b23b301b52b3bc1be5021d7d37da2a043c4f405068855532369580. 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/JPS321302531.
津軽三味線 現代曲集 打擦奏4 カラオケバージョン
津軽三味線 現代曲集 打擦奏3 カラオケバージョン
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xebd76786c4409093d51a8f5f761ea6c5a1b5fd546a867c12fd17818bf5f145df. Chain 2 (Bitcoin): anchored in block 960303 (2026-07-30T20:11:13Z), 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/JPS321301823.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4672680ddbc84746f90cd6ee4651008f30be43039942d06613d6bf7f42e0e31f. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/JPS321301824.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0fea27e234b00e3eb680638503456ad44ffa055ed312d31174b4432b288dad26. Chain 2 (Bitcoin): anchored in block 954130 (2026-06-17T19:07:14Z), 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/JPS321301826.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb3b5bfe23c11504c13a97fb0d9356558195243e78f5dc2565ab46a973a97ebe6. Chain 2 (Bitcoin): anchored in block 960503 (2026-08-01T03:41:24Z), 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/JPS321301827.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0f0d4659bd22657588347d56ed13106255dc65bb4c107e2a4602b8b2d42025fe. Chain 2 (Bitcoin): anchored in block 960379 (2026-07-31T09:25:34Z), 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/JPS321301687.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6486bd5a8ca748b2ffdd54623d032f336e5dc1552c9c4daa49266536d545e50e. 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/JPS321301692.
津軽三味線 現代曲集 シングル (はいよろこんで)
津軽三味線 現代曲集 ビギナーズ シングル (三線の花)
津軽三味線 現代曲集 ビギナーズ シングル (いつも何度でも)
津軽三味線 現代曲集 シングル (オーバーライド)
津軽三味線 現代曲集 シングル (夢幻)
津軽三味線 現代曲集 シングル (ビビデバ)
津軽三味線 現代曲集 シングル (阿吽のビーツ)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2d30269a251ca8892c27fef40cf3c5fa0a8a88131bb9bac12fafcf64d423fe56. 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/JPS321309881.
津軽三味線 現代曲集 シングル (極楽浄土)
津軽三味線 現代曲集 シングル (夢幻 TV EDIT)
津軽三味線 現代曲集 シングル (鬼ノ宴)
津軽三味線 現代曲集 シングル (晴る)
津軽三味線 現代曲集 シングル (のだ)
津軽三味線 現代曲集 シングル (ただ声一つ)
津軽三味線 現代曲集 シングル (モエチャッカファイア)