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 0x5ff9711f72b3a74ceb9a679ff84338526b3d68fe4dd2aae77521afef3def408b. 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/045a6cbd-598a-484c-9835-aa22fc1f95da.json and https://artists.proofprofile.net/proofs/artist/045a6cbd-598a-484c-9835-aa22fc1f95da.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
デメイ「指輪物語」 & バーンズ 交響曲 第3番
交響曲 第1番「指輪物語」: V. ホビットたち
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 0x850acb0c0935ccc0f6910d601519a54fd40fa126c2de9ccd8dfc60a47a2a758a. 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/JPH291048505.
交響曲 第3番 作品89: I. レント ～ アレグロ・リトミコ
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb7191b49f95ab0d8828262edfea3bd937b87b256cfe1b0d2c3036a74e61e19f6. 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/JPH291048506.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe7b53a3e381f20a45d78a07b78b4280bc7f117d26a628f55d64f32d7d90913ee. 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/JPH291048507.
交響曲 第3番 作品89: IV. フィナーレ／アレグロ・ジョコーソ
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8054749c711f36c87a5bb0891032299fa90459715a08168494fa3d2c393bded5. 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/JPH291048509.
交響曲 第1番「指輪物語」: I. 魔法使いガンダルフ
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2f5739ec0b7e9cbaf843efa3f80e1bfcb171111a1222f920db1f858f3ad77892. Chain 2 (Bitcoin): anchored in block 960455 (2026-07-31T19:53:13Z), 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/JPH291048501.
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
交響曲 第1番「指輪物語」: II. エルヴェンの森 ''ロスロリエン''
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2db248f8793dadfb75523ed75a67628c9876e5fec10631dc306a757fe04cfadc. Chain 2 (Bitcoin): anchored in block 960441 (2026-07-31T17:29:52Z), 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/JPH291048502.
交響曲 第3番 作品89: III. メスト ''ナタリーのために''
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6dfb5305173ff0e85284479eda3ce209dc49231c0c38dda5616f3154098ff343. Chain 2 (Bitcoin): anchored in block 960229 (2026-07-30T08:30:10Z), 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/JPH291048508.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x27b6e63621f32e1f615019860a5f1580d30e7aeb254a392186651836167559ef. 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/JPH290319402.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8b66e8e2bad98c84749d7bf3b08d430872390b3d539de5c09de746291ea44264. 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/JPH290319403.
「第六の幸福をもたらす宿」～映画音楽による組曲～：I. ロンドン・プレリュード (瀬尾宗利 編)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe6fb4ed779857d401e8287c7461adfd611468885477a94103debff2619988179. 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/JPH290319412.
「第六の幸福をもたらす宿」～映画音楽による組曲～：II. ロマンティックな間奏曲 (瀬尾宗利 編)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x09e0593a696e131074d9cd355aa6d3c75947285b7de5622e0be94d5b94d0a8d1. 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/JPH290319413.
「第六の幸福をもたらす宿」～映画音楽による組曲～：III. ハッピー・エンディング (瀬尾宗利 編)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa2f848ec95dccaffe92c765938011b2941a75de9a728c43153b149a6d10bc612. 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/JPH290319414.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe942184b7ea9c4c87e5c3d2df740a09728a8658e838148c2869e3fd8b900f75c. Chain 2 (Bitcoin): anchored in block 960441 (2026-07-31T17:29:52Z), 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/JPH290319404.
オーウェン・リード: 交響曲「メキシコの祭り」 III. カーニヴァル
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x96e3f22f90c612ae34ba73190c80593abcc3571907247c5c23d47bb9eb98dea0. 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/JPH291464812.
ピーター・グレイアム: 巨人の肩にのって I. ファンファーレ
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x97f2a9d1b8bcb6dbb1ddf9895bca91ec3a54699687ac7edb71c2194eb57379e6. Chain 2 (Bitcoin): anchored in block 960429 (2026-07-31T16:07:24Z), 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/JPH291464803.
ピーター・グレイアム: 巨人の肩にのって II. エレジー
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x11a75aeb602c7f468abef88fddc3367414603175547edc3a9ef69685b7677e5d. Chain 2 (Bitcoin): anchored in block 960481 (2026-07-31T23:51:35Z), 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/JPH291464804.
オーウェン・リード: 交響曲「メキシコの祭り」 I. プレリュードとアズテック・ダンス
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf8b60a81b12b3160b21695b3459325725194746582127145b45920e63b51bacc. Chain 2 (Bitcoin): anchored in block 960183 (2026-07-30T01:10:20Z), 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/JPH291464810.
オーウェン・リード: 交響曲「メキシコの祭り」 II. ミサ
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdfdcd80dc07991f6d06df63a6df621de12b2a82412b99d49e477e563f177da7b. Chain 2 (Bitcoin): anchored in block 960379 (2026-07-31T09:25:34Z), 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/JPH291464811.
真島俊夫： 三つのジャポニスム I. 鶴が舞う
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcdbaca66579be42e29c0ec765fb585c2891b1d6317a603a3ee3fef5487ab13f1. 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/JPH291464003.
真島俊夫： 三つのジャポニスム III. 祭り
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x57e2bc5c2227d0b9a7692d24856954723e72d2c88bef823089ea90be7d405276. 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/JPH291464005.
三善晃： 吹奏楽のための「クロス・バイ マーチ」
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x028e3a9a8c04051d36d1b1896642f87a15ca5a3fcb33b96b464f0edc56e6777c. 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/JPH291464006.
三枝成彰（長生淳 編曲）： 交響組曲「機動戦士Zガンダム」 II. 戦争と平和
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x906f12660f3ff7153ca292bd841a2ffe8754bdf81ea6d74b94437d7f43333040. 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/JPH291464009.
真島俊夫： 三つのジャポニスム II. 雪の川
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5d00572fe1ca8b9b7712881c029f6cf108e6470acb0c46cbd6780b6584a43149. Chain 2 (Bitcoin): anchored in block 960468 (2026-07-31T21:25:57Z), 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/JPH291464004.
三枝成彰（長生淳 編曲）： 交響組曲「機動戦士Zガンダム」 I. Zガンダムのテーマ
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9346b91701d1ae6ca75833dfd4f1c42c7ac34a851e3e3abb162f1f033a9a81ea. Chain 2 (Bitcoin): anchored in block 960121 (2026-07-29T15:22:21Z), 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/JPH291464008.
和田薫： 吹奏楽のための土俗的舞曲（2012年版）
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9921d9a1986d952448b9cc39109ef34f6f0307de89649ef673dad7c5bbf5cc80. Chain 2 (Bitcoin): anchored in block 960300 (2026-07-30T19:42:40Z), 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/JPH291464011.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa612286f93579fd3a9d36a26cdd964d3cde7bbe3f681549ce9f3ffed4a6bf3ce. 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/JPH291046109.
アルメニアン・ダンス パート1: 2. やまうずらの歌
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x84dca92f9a9f03ad0c0efcdfc5357f129eb5e2344ba756f68e4c271632a212ab. 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/JPH290521808.
アルメニアン・ダンス パート1: 5. ゆけ、ゆけ
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x26978e0be498ffd6a25c71c05e0182a0a430d215a0d48d985cb325edaae74004. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/JPH290521811.
シンフォニエッタ～水都のスケッチ～
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xffd4bae9bfac77a08f2934d8558286e4b7644cd09c95ab5cafc652b66d37820b. 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/JPH290218106.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbccb93b77449e56dcec4a133a26e8e13f3ddbda124d650e8b37353ced86c9677. Chain 2 (Bitcoin): anchored in block 960240 (2026-07-30T09:57:33Z), 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/JPH290218103.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8c9b6bcda6336da78fbd0914d3afdcb1cc52135aedefe00f34a9217b1e6a52b5. Chain 2 (Bitcoin): anchored in block 960314 (2026-07-30T21:00:46Z), 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/JPH290218104.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x48aa9ab3558f30f49fea0a4e277d4085c2b86a71b872f12d6f5897bed710e02f. Chain 2 (Bitcoin): anchored in block 960381 (2026-07-31T09:50:11Z), 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/JPH290218105.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xac24ebcddcc21777789a4fe01df5b984e73ed1b83beebdd3cdc466a02b7e5d5a. Chain 2 (Bitcoin): anchored in block 960441 (2026-07-31T17:29:52Z), 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/JPH290218113.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x30a26aac13f841e380c0932c4bfd8e5d49142243c290814b9689209063a2ab90. Chain 2 (Bitcoin): anchored in block 960157 (2026-07-29T22:12:10Z), 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/JPH290218115.