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 0xa00f04f5893f19654268010596ccf7a95c6a4f387467e0c68e682cdf1abb7e80. Chain 2 (Bitcoin): anchored in block 953877 (2026-06-16T02:39:16Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/0832c354-efc4-4fb9-b50a-8b237cf45e50.json and https://artists.proofprofile.net/proofs/artist/0832c354-efc4-4fb9-b50a-8b237cf45e50.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
ブリュッセル・レクイエム／B・アッペルモント 土気シビックウインドオーケストラ Vol.22
土気シビックウインドオーケストラ
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 0x8ad19ea0dc6e093f5caadc821c37e328881b62b1661821170c0318985f206b9a. 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/JPJ671811003.
「ラピュタ」～キャッスル・イン・ザ・スカイ～
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1d36f825dc1fb185017c8ee038b35b56794ccb5d4ea7171ca9285a8a007783d7. 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/JPJ670801702.
サガ・キャンディダ ～魔女狩りの7つの印象「Innocence（Love）： 純粋なる愛」
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf0f25a2de387a9d5bc95cafdaabe3c24a6479c655d6cb9dd0d11046e57a7e079. 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/JPJ670801710.
サガ・キャンディダ ～魔女狩りの7つの印象「Death：死」
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4d7f1f88db30d7d06d5904c401f3d23ae4bf064f32f7eea6e3a44f21eb273875. 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/JPJ670801713.
サガ・キャンディダ ～魔女狩りの7つの印象「Transformation（Finale）： フィナーレ」
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9588c7764dc37a8fd6ced965c34a12eccd5f7c33cf3fb72c5109e795e5b1725a. 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/JPJ670801714.
交響組曲「パイレーツ・オブ・カリビアン」
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xddf0bbd0fb4cfcd919381773aa1b597d998411ebd720f74515caf4d42ff458e1. 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/JPJ670801720.
サガ・キャンディダ ～魔女狩りの7つの印象「Opening：オープニング」
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5a0564fdda3f90003d8312e6da219804506e747e50cea9d393662071a3f35cd5. Chain 2 (Bitcoin): anchored in block 960404 (2026-07-31T13:06:57Z), 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/JPJ670801708.
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
サガ・キャンディダ ～魔女狩りの7つの印象「Accusations：告発」
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb406632be007c59b8cc4c8b9aa5366d18fa270bd5aa7949990b5c58a5ea69cc6. Chain 2 (Bitcoin): anchored in block 960463 (2026-07-31T20:42:35Z), 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/JPJ670801709.
サガ・キャンディダ ～魔女狩りの7つの印象「Tango：タンゴ」
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x39da44ed887d3551ee1db4de44e98d0417cd035de7d592dce88283e2c622b894. 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/JPJ670801711.
サガ・キャンディダ ～魔女狩りの7つの印象「Sabbath：魔女裁判」
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb20f8896519b5443c17f455c20babeb553039e475073f6eaa1018401e42b7e79. Chain 2 (Bitcoin): anchored in block 960368 (2026-07-31T08:26:41Z), 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/JPJ670801712.