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 0xfbea6da3bab57a94dcf55d9e91bd4a66793c601fe1c1fd10e427f3d26ddedb9e. Chain 2 (Bitcoin): anchored in block 953407 (2026-06-12T19:24:56Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/7bfab82a-793f-426c-a00d-b6192f2d0217.json and https://artists.proofprofile.net/proofs/artist/7bfab82a-793f-426c-a00d-b6192f2d0217.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 0xa0d808030ce6db9715a58c90da8c3556a8f4d05a36ae35bf3b61a60fa35f09e6. Chain 2 (Bitcoin): anchored in block 958176 (2026-07-15T17:14:36Z), 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/QT3EY2494683.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfa3d66cd8063a20f77d03bb047c36090f359213d7cfd5c4f8d08366f0c983366. Chain 2 (Bitcoin): anchored in block 958263 (2026-07-16T08:19:47Z), 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/QT3EY2494684.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4b5e00e5a7d6e4b51d5adb1399123f84d8b72320cb0acbce399014a96a03aab9. Chain 2 (Bitcoin): anchored in block 958561 (2026-07-18T14:22:01Z), 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/QT3EY2494685.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1ced1bfd9a398fc7ea1bd5b93a04d8322762b742de6548a4eb58b38f5d700a7b. Chain 2 (Bitcoin): anchored in block 958812 (2026-07-20T03:24:09Z), 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/QT3EY2494686.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x54b53e32241a447aba5fa4fc911b54335cc7b06261763ef1285fcc4b8e07d0fa. Chain 2 (Bitcoin): anchored in block 958455 (2026-07-17T21:28:36Z), 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/QT3EY2494687.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcd444f04cffa23c2a219bc24926218b9b2155dc47cd2ba63ef750b377aa93a45. 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/QT3EY2494688.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeb148776ddc4e34516b1de7c95e668385246fa5a5838c96af35193bd0861ed93. Chain 2 (Bitcoin): anchored in block 958749 (2026-07-19T16:35:13Z), 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/QT3EY2494689.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc7ee2224ae131c30d1c4e8561b58d9d33d679ac2a7b990471916db8a6e558f1a. Chain 2 (Bitcoin): anchored in block 958558 (2026-07-18T13:44:16Z), 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/SGW502292721.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x19c0e73b4e1e9c2c04682260ce20edb8b147ad8ed4dbf687410067c810fad753. Chain 2 (Bitcoin): anchored in block 958504 (2026-07-18T05:41:32Z), 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/QT3EY2494690.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x263e8009e4fcbef56d3b13244879d139e3201cbd82ac18377fd1e7af7fc9a430. 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/QT3EY2494691.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2afc2331c5ebc0a59efce9e2577b9ac52ef67b87f6c070788af89cbcc1005e21. 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/QT3EY2494695.
シックな和風ラウンジで迎える朝
湯けむりに包まれる癒しのメロディ
Winter Night Rhapsody of Lights and Beer
A Rhapsody of Kagura and Starlight in the Winter Sky
"You've Been Looking This Way, Haven't You?"
隠れ家レトロバーで過ごす癒やしの時間
40年代ニューヨークジャズラウンジ
天空ラウンジで聴くナイトジャズ
Wa-Style Maid Café and the Melody of Wa-Jazz
A Beautiful Afternoon Awakening with Music
スチームパンクとハミングジャズ
Jazz Bar Coloring the Night of Showa Era
浪漫喫茶で流れるモダンメロディ
Modern Melodies Flowing in a Romantic Café
夜の喫茶店で聴く癒しのメロディ
都会に溶けるナチュラルブルース
The Harmony of Japanese Beauty and Serenity
パステル色のラウンジで過ごす夜
Healing Rain Sounds in a Japanese-Style Lounge
Tropical Jazz Called by the Southern Breeze
南国の風が呼ぶトロピカルジャズ
瑠璃色の袴が紡ぐラウンジジャズ
To the Deepest Midnight Chill at the Counter for Two
二人きりのカウンターでMidnight Chillの最奥へ
Piano Melodies Melting into Sweet Whispers
甘い吐息に砕けるピアノのワルツ
元気になれる笑顔とソウル・ジャズ
Whispers Spilling, Waves of Sound Unfold
浪漫喫茶で味わうJazzとコーヒーの時間
高級和風ジャズバーで見つけた声
和の香りとスウィートなグルーヴ
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbf779e881d65997dea79fe21b57da257cc91f4eabb447d6eb90c221093482d7a. Chain 2 (Bitcoin): anchored in block 958601 (2026-07-18T19:27:02Z), 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/CAGOO2528772.