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 0x45dd75651706ecb54703105e52adc7666c3b9cb9d955b380d3e1cdfbcb116e9e. Chain 2 (Bitcoin): anchored in block 954066 (2026-06-17T08:11:48Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/4cd8b377-3c90-4233-bc16-32d847c793ed.json and https://artists.proofprofile.net/proofs/artist/4cd8b377-3c90-4233-bc16-32d847c793ed.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 0x67c0438a28becea09a57842e305d4f6d18f972ac1fd3d2ec3cb0ada24c18dca5. 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/JPTO09828510.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x048ba2009a4d39b43e75720f328f2b987d523a8e182e3dac0655da42b16f9327. 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/JPTO00500376.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1f75d466111eeb79d36b44c2e9b5d22d6cb404c3013d95bc002ead0763413e2f. 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/JPTO09810030.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x67f086dc2d91f56a4bc804e2c00ce3a96269f3f0321ac700fa20199289724a44. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/JPTO09718680.
3つの交響的絵画「寄港地」より ヴァレンシア
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x010e8e4b229338a99ca059bb0f4d83527964135df99994ace7c3bf03cefb2e9c. 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/JPTO09211610.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb543a83afda7c123323f96e563dd5d2de9089a467a5e80e6fd348bc7672d071b. 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/JPTO09533870.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x26e8741839d68ff7097e214925281ddc4ca2396dfeed7b46fd9e4dc3e26dd27c. 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/JPTO00000910.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xccc7dd0134e0b57337914286a81251b7b8b2a4e44879ad8b8bfce51724e04edc. 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/JPJ670600202.
エドウィン・フランコ・ ゴールドマン
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9ec93f12214be2657cf2baa8ebfecef03cae268fccdb92863e3538f2e80b6696. 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/JPJ670600206.
THE自由曲〜この名曲を、今年の自由曲にしませんか?
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x362b58b3dcb9870e7f65d17c01f7e29ecb540c61615b2bbb3da69b0def88936b. 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/JPB600522403.
喜歌劇「ロシアの皇太子」セレクション（鈴木英史 編曲）
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf7b8e1a75613c89eb4b51ab48a481efb74d4e433cb57247e18b2f18925d7e89f. 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/JPJ670902503.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfa5a502b7f4fd322d75f18c6c12be0da3b2d697aa2fec98b5a053b0b75446c87. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/JPJ670902506.
ア・ウィークエンド・イン・ ニューヨーク
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5dba47de420a411fb7d1725f15b0f165cb0872f109e2bb1f62ff389f192b0fdd. 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/JPJ670902528.
吹奏楽のための神話 ～天岩屋戸の物語による
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6ebae2618f87b2e9c77c5bcecfd16a26d29bd8383468f159cea8561a78852022. Chain 2 (Bitcoin): anchored in block 959144 (2026-07-22T15:38:35Z), 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/JPJ670902508.
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
近畿大学吹奏楽部 第54回定期演奏会 交響曲第三番 [J・バーンズ]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfb26da71e90c96d2185e0693fade342dc7ede6170d380e3699368396549a51b9. 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/JPJ671507810.
Ohguri: Violin Concerto / Phantasy On Osaka Folk Tunes / Legend
バレエ組曲「シバの女王ベルキス」「Ⅳ.饗宴の踊り」
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x30605dfa56ea9dac131a0aa52e94fe1d8d937016afc61d59421936ccfc6a1839. 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/JPJ670700508.
金管バンドで讃える『シンフォニア・ノビリッシマ』 〈金管バンドコンクール自由曲ライブラリー Vol.4〉
ヴィヴィッド・ブラス・トーキョウ
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x95e76621aceabec524739ef882a3c5e9c55a7e28445f0df55fa57c84780f8444. 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/JPJ671306110.
吹奏楽のための小狂詩曲 ～金管バンドヴァージョン～
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf500bedd9687c5073541a314fb7c3dacf8a41519d6f22de06dd55668abc78d2c. Chain 2 (Bitcoin): anchored in block 960291 (2026-07-30T18:23:33Z), 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/JPJ671306108.
2011 WASBE Chiayi City, Taiwan: Osaka College of Music Wind Orchestra
I. Gotkovsky-A. Reed- H. Ohguri- G. Meister- J. Van der Roost
日本の音楽大学撰 ― 特別篇 ブラヴォー！東邦音楽大学 コンクール自由曲集 『キューバ序曲』
2019 Midwest Clinic: Osakan Philharmonic Winds (Live)
1999 WASBE Cincinnati, USA: Philharmonic Winds OSAKAN