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 0x93e56c0815d5c43cb00027ee9dbe18f263d87faa4259d95d48699db4411ab4a2. Chain 2 (Bitcoin): anchored in block 953588 (2026-06-14T04:52:46Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/00dd5f01-29ce-4b9c-b464-bd11ede894d7.json and https://artists.proofprofile.net/proofs/artist/00dd5f01-29ce-4b9c-b464-bd11ede894d7.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
気分転換のためのコーヒータイムジャズ
夏の夕暮れ時に聴きたい ～サンセットジャズ～
お洒落なスタンディングバーで流れるジャズ
ワインとジャズのコラボレーションを楽しむ夜
Evenings Enjoying the Harmony of Wine and Jazz
Enjoying Quality Jazz in the Perfect Setting
良質なジャズを最高の空間で聴く
ピアノが流れるバーで過ごすひととき
ホテルバーで流れるおしゃれなジャズピアノ
夜の隠れ家レストラン ～名曲ジャズピアノセレクション～
Hidden Restaurant at Night: Selected Jazz Piano Classics
自宅をカフェに変えるジャズピアノ
絶景で聴くマイナスイオンジャズ
楽しいリズムに乗って気分が上がるジャズ
Luxury Hotel Bar Jazz Piano: Elegant Melodies for a Sophisticated Night
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 0xf30751c0f750cc526b70704425aa9c24de0d2abcc6de450cf372ccd65bf5f500. Chain 2 (Bitcoin): anchored in block 957122 (2026-07-08T03:39:04Z), 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/JPN292516732.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x55c146464b1846de85d5b23478b1507c13c6cdc879b55c7a4ee53b404dac9b20. 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/JPN292516735.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0afd3095982157486c5d9ced42a6b51845e064e22676bdb1b3d6bfb02cd0348b. 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/JPN292516736.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0239dc8c4f6c396d8b1fa62f954ef7e6db5910948d3682cfae5384f47696a1af. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/JPN292516737.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd15f75166240205affe227bebf721a1661c4cc8868a7c910973ca85a9e4bde50. 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/JPN292516738.
Morning Bliss with Freshly Brewed Coffee and Jazz
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x600a08bcf0479e71d50701cfd061951fd56ce83c06319f8fe30dcf0b9d8d9794. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/JPN292515522.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc6b157cf1b8fea13bc6f59d8fff80b31dd24c1c56b574d04ffaf002687627044. 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/JPN292515523.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6aa829b0e1cac11fa49fe478ca5146c815614e9f943159a59ca7e3700e76f738. Chain 2 (Bitcoin): anchored in block 960327 (2026-07-31T00:26:26Z), 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/JPN292516731.
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
In A Sentimental Mood - Luxury Lounge ver.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x999c1347bca82ba5b31c0d8972a77e823e20fee479d6a93c20bf856eef83b02f. Chain 2 (Bitcoin): anchored in block 960418 (2026-07-31T15:20:15Z), 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/JPN292516739.
Lullaby Of Birdland - Luxury Lounge ver.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x56605062bfdc337b9baf535087baf4c2d70316adf4706d11d2824a2375b68329. Chain 2 (Bitcoin): anchored in block 960448 (2026-07-31T18:48:12Z), 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/JPN292516740.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0aabeeb696433c1e07343d8ff4748549a16e5bbacb286fb9626e0ab8a1fe4846. Chain 2 (Bitcoin): anchored in block 960410 (2026-07-31T13:50:38Z), 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/JPN292516741.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x116f5e36e40e04e0f52dc1e453b6251ffb958b91ede37f5ae519b552171b16a9. Chain 2 (Bitcoin): anchored in block 960397 (2026-07-31T12:24:41Z), 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/JPN292516743.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x439ff878fc7551742d0b3065d23f2caed1c185953c2fcbc6be4ba6f7b400e251. Chain 2 (Bitcoin): anchored in block 960397 (2026-07-31T12:24:41Z), 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/JPN292516744.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf4a3c44278d1754f1856a438506a777086499ab1b4e91aee43383bc474f9b119. Chain 2 (Bitcoin): anchored in block 960410 (2026-07-31T13:50:38Z), 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/JPN292516745.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2803243108619b4722ef3d73a308cd357b9c8e1347bd1a2a3d613627ef90a740. Chain 2 (Bitcoin): anchored in block 960506 (2026-08-01T03:50:58Z), 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/JPN292515538.