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 0x30a88aaca2dd3f351eb9db95065a3939754eac148fa997ebc735c0226ed32afb. Chain 2 (Bitcoin): anchored in block 953592 (2026-06-14T05:36:59Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/075a12bc-5a03-4c85-a4cf-8fee0ca12144.json and https://artists.proofprofile.net/proofs/artist/075a12bc-5a03-4c85-a4cf-8fee0ca12144.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
〈Haydn: Symphonies Vol. 23〉No. 29, No. 55 "Der Schulmeister" & No. 59 "Feuer"
Mozart: Symphony No.31 "Paris", No.23, No.16 & No.17
Symphony No.31 in D Major K.297(300a) ''Paris'': 1. Allegro assai
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 0x5c1cfcbecb85dbfa0f1a95dc38e73c7861a420a89e7e20b1d8cdcec1391a65e1. 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/JPG202326389.
Symphony No.23 in D Major K.181(162b): 1. Allegro spiritoso
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x90a77ee1a5268b06b42e9e27f93a8b88ab9af3f6f0fc5b254ec96ba10a909d41. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/JPG202326392.
Symphony No.31 in D Major K.297(300a) ''Paris'': 2. Andante
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8e57620f32401f9ec5f019a1b68d95fdf2490130ba8ec9b4a75922d9f08358ee. Chain 2 (Bitcoin): anchored in block 960489 (2026-08-01T00:40:43Z), 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/JPG202326390.
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
Symphony No.31 in D Major K.297(300a) ''Paris'': 3. Allegro
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x31c4ff53a2915b014e82cc6796b969bd014eba099d40ebc936dfdc7c6dfc3551. Chain 2 (Bitcoin): anchored in block 960334 (2026-07-31T02:19:15Z), 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/JPG202326391.
〈ハイドン：交響曲集 Vol.22〉第67番、第68番、第11番 / 飯森 範親 (指揮) 日本センチュリー交響楽団
〈ハイドン：交響曲集 Vol.21〉第69番「ラウドン将軍」、第71番、第53番「帝国」/ 飯森範親(指揮) 日本センチュリー交響楽団
〈ハイドン：交響曲集 Vol. 17〉第33番、第48番「マリア・テレージア」、第36番
〈ハイドン:交響曲集Vol.15〉交響曲 第89番、第4番、第10番
〈ハイドン:交響曲集 Vol. 14〉 第 85番 「王妃」、第 23番、第 20番
〈ハイドン:交響曲集Vol.13〉第94番「驚愕」、第1番、第64番「時の移ろい」
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1862f17c65324cd3aa831c1667eeb2fdb2791f1c40925f4df5260a7732a87301. 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/JPG202123868.
チャイコフスキー＆メンデルスゾーン：ヴァイオリン協奏曲
ハイドン：交響曲集 Vol. 9 第 92番「オックスフォード」、第 76番、第 90番
デメイ: 交響曲第4番「歌のシンフォニー」
〈ハイドン：交響曲集 Vol. 8〉 交響曲第 60番「うっかり者」、第 54番
ハイドン：交響曲集 Vol. 7 第 37番、第 78番、第 16番、第 100番「軍隊」
〈Haydn: Symphonies Vol. 6〉 No. 39, No. 61, No. 73 ''La Chasse''
ハイドン：交響曲集 Vol. 5 第 50番、第 70番、第 2番、第 9番、第 88番「V字」
〈ハイドン：交響曲集 Vol. 4〉交響曲 第 7番「昼」、第 58番、第 19番、第 27番
ハイドン：交響曲 第 96番「奇蹟」&第 18番&第 99番&第 30番「アレルヤ」
モーツァルト：ピアノ協奏曲 第 25番 K. 503、ピアノ・ソナタ 第 10番 K. 330
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2c4c4565dd3529de6580bd4628e09a287854ee8f2e9216f0dfcd47ddce4ea47c. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/JPG201720347.
交響曲 第 31番 ニ長調 ''パリ'' K. 297 (300a): 3. Allegro
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfa1a31945943ce350bb1439bea60d9708159d3df2cfff798c957f2d90e4e5825. 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/JPG201719832.
交響曲 第 32番 ト長調, K. 318: 1. Allegro spiritoso
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1f1485e3902f2d75c2677b7e6fc066e6765cf3591e6dff8b670f7f7fd3d9765c. 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/JPG201719834.
交響曲 第 32番 ト長調, K. 318: 3. Allegro spiritoso
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaf5e044029d5eb0b1674acdc5c4979e6485516695a6cd8d04a92cb96e485c98d. 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/JPG201719836.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf0c94871d68d927c8b85e447fda240ab4a8d3b7c730eba1b476690e22ca7307a. 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/JPG201719786.
交響曲 第 16番 ハ長調, K. 128: 1. Allegro maestoso
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3e9ee378b534b76f25ad2a613ee830f434ad668c25290e5b823cd193a54a39db. 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/JPG201719768.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa54722fa88cd43a1886c5a04c770b59c9eb517a04c6190c9d459e26db074f972. 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/JPG201719770.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd2554d0007ef735f78cb59cd2f8e1e3c32a31158e571770cecf5b76722258efb. 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/JPG201719773.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xea1d94b802cc27a9bb184eceb3c19954f6271c8b5e33d3475a29befd10604233. 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/JPG201719777.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf15b65aa4eef742418f127572145d00fe86eaf35b3e19c83653b76313ed6f827. 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/JPG201719746.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbf09350c6bde85ae854d817e9ae5e9fbe746a56f26a206893b790da00ae104f6. 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/JPG201719750.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x16da97d89bbdb6a2f841c9033c02650df8192c1e39de683ba51a256167502810. 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/JPG201719753.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe0af4a42543dccfdc9d5446f9f19abca778f376dacf866d5c3474a6511303f8b. 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/JPG201719754.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8d2cf370e74245461f53cb246a63a12f0ea3c99a7a95187378837b50273c5994. 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/JPG201719756.
交響曲 第 14番 イ長調, K. 114: 3. Menuetto - Trio
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x55b41f93aa8a44804915b90a6074e1a814fd7425dbb2c137bdd9d17dc2354871. 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/JPG201719759.