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 0x6b5a71ec394f6b9c6a070eec9541484ff630b65056cb0c33043c41b6c4b7ab15. Chain 2 (Bitcoin): anchored in block 953803 (2026-06-15T15:41:00Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/ea123e3c-3ccf-4a20-bd6b-ca92ef83cc12.json and https://artists.proofprofile.net/proofs/artist/ea123e3c-3ccf-4a20-bd6b-ca92ef83cc12.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
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 0x0f7932bc492b535e9b1a6cbad34f52dcb058ec191a4af12de05074ab129ee744. Chain 2 (Bitcoin): anchored in block 958180 (2026-07-15T20:40:46Z), 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/QZTBE2438722.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc98682caef4885dfc7733f658705a59844e03d3ebb4b09a8dc6cb30634a7890b. Chain 2 (Bitcoin): anchored in block 959128 (2026-07-22T14:59:02Z), 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/QZWFE2443438.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x940999050c04f0736df7da957e2212464828b54e9a5f7662730518a0fdb0c357. 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/QZWFK2447445.
涙を力に変えて！勇気をくれるメッセージ
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9f6aa43f40bf8af11f6ccfb085e707b8ba13db4b5d70506dd0bc124161873b8c. Chain 2 (Bitcoin): anchored in block 958324 (2026-07-16T23:30:02Z), 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/QZWFX2475792.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe5274cd230e3727dc120078b2678ca8237597614329fd77f4817e227b13a3ad1. Chain 2 (Bitcoin): anchored in block 956560 (2026-07-03T23:28:02Z), 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/QZWFX2475801.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7bd465e35619d386d746173aa40807c7e9a32ca09352649df40763a286d9a087. 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/QZZ782416954.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfec1fdeb5308b39e14989573519b98ccd8105b7a4f5e2da793bc2360bbfada0f. 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/QZZ7K2480380.
Eternal Sakura – Songs of Love and Goodbye
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x74cd3b5d70256e7a53cc4bdf5ab98c9bea14358b20a7aabe1331e21cfb6a2ab9. Chain 2 (Bitcoin): anchored in block 958276 (2026-07-16T10:20:17Z), 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/QZK6Q2576022.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcf5990819685002aeb0861b1ed02852a4673107b505d7b1996b4e2d909898a9d. Chain 2 (Bitcoin): anchored in block 958430 (2026-07-17T15:33:28Z), 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/QZK6Q2576023.
ひとりで暮らす春が、こんなに寂しいなんて。
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7e3c0407fae31ba12dc6e6ff16fa2f9c73f21753477153512ccba041e8fc435e. Chain 2 (Bitcoin): anchored in block 959114 (2026-07-22T08:41:42Z), 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/QZK6J2512105.
梅雨と夕暮れに消えた恋 / Lost Love in the Rainy Season
生きてるだけで、すごい｜You’re Here, and That’s Enough
Fading Love – 夏の夕焼けと蝉しぐれに消えた恋
Full Moon and Midnight Wind | Stay With Me Tonight
ここにいるだけで – 雨上がりの匂いに包まれて
Starlit Fireworks: A Summer You Can't Forget 星に照らされた花火——忘れられない夏
花火と線香花火と夏の余韻 – Eternal Glow（Fireworks Night – Imaginary Soundtrack）
線香花火と打ち上げ 花火と夏の夜のBallad
歩ける日まで、願いを空に託して-Until I Can Walk Again – 3 Heartfelt Ballads of Hope & Courage
夏の余韻と秋のはじまり｜Echoes of Summer, Whisper of Autumn
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3d670bda8f7b14c657d0cef4989ab09b5d50a966cf13a2543df3005cdb883d58. Chain 2 (Bitcoin): anchored in block 958476 (2026-07-18T01:26:56Z), 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/QZZ7N2553831.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbb3e31e494fb31c9bcc76fb8a4939e77d7de1de45972ff2f37c3b580d0365774. 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/QZZ7N2574644.
秋から冬へ – Emotional Ballads Across the Seasons
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x106f677b1d47cd7b0c9b5ce0fcb0fd3412a274d7f471f3ffb887f8ffe65d47c9. 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/QZZ7S2574100.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc1bd7d77e67a42d17fd6a34752432ced839b91e597ab02aa2c87d3331f44ea83. Chain 2 (Bitcoin): anchored in block 958839 (2026-07-20T09:34:26Z), 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/QT3F22570481.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x495b1acdb47a791f8c3e993486b1b46b7cc8bab093e47361d65e41ad62ca56b0. Chain 2 (Bitcoin): anchored in block 958444 (2026-07-17T19:12:23Z), 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/QZZ7W2551033.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8dc184b9e400b25fec804f15d9978f5d00dcbc1d41b569995a374e058722f9be. 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/QZZ7W2519934.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9c6b2520f23b6f0f70f59f36e2defd603bbae2f111bdc853e31756e137fb7854. Chain 2 (Bitcoin): anchored in block 958905 (2026-07-20T17:27:04Z), 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/QZZ762572852.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3c45c28486c751c322b61875e484a0289fab02cd364cbf316fee655aeff6a84a. 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/QZZ762572853.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaf54220685815028a6eedb73ff398264a159204242affb582db5d438d97a27d2. 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/QZZ762572855.
I still believe, I still fight｜信じ続け、戦い続ける
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe914b420b2ae0da9f2e223e2aebfc50f1233d91ecde149192f1b12728b4aff8d. Chain 2 (Bitcoin): anchored in block 958959 (2026-07-21T03:51:22Z), 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/QT3F22511574.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x989fa350ac65ad6c504305c2ee5c9c7025d2fddd1a7d1638f1bb51e49a56a455. 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/QT3F52500210.
明日はもっと優しい今はそのままでいい
冬の光とクリスマスの奇跡 – Winter Lights & Christmas Miracle
冬灯の記憶 -Memories Beneath the Winter Light