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 0x99cf07b23536ad556834eec36fac8cbb83c1ec44f9ad26c9646421df29bbc755. Chain 2 (Bitcoin): anchored in block 953803 (2026-06-15T15:41:00Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/ecd4f27a-35c2-4fb0-ae37-2858811a120f.json and https://artists.proofprofile.net/proofs/artist/ecd4f27a-35c2-4fb0-ae37-2858811a120f.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
シンフォニック･フィルム･スペクタキュラー10 ローマの休日～ノスタルジー･セレクション
華麗なるカートゥーン&ミュージカルの世界
日本映画音楽の巨匠たち シンフォニック・フィルム・スペクタキュラー 12
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 0x3ae6bc5f74e50c4bcc14ededcc4c9bf56358b45cac8d1b2cdfd0d64599a84825. 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/JPKI02113721.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9c186707e992fe1714f8770a7653db098200278fd12ae5482a809531633b3e1e. Chain 2 (Bitcoin): anchored in block 956894 (2026-07-06T07:53:57Z), 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/JPKI02113724.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8b2f89e0e06dc7a30123bce1858407d1b66ffd33b69fd252f4f0f5bd3345cc4d. Chain 2 (Bitcoin): anchored in block 956894 (2026-07-06T07:53:57Z), 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/JPKI02113729.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcb7789d136915009fac2ba7403367caa43d834d63151a23a8247d77ec8f9500b. 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/JPKI02113731.
「空の大怪獣ラドン」ラドン追撃せよ
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1e7cf409962dad1c1b0db28802f9a7a305815cfcdd680a656883f1451e1651c9. 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/JPKI02113732.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8424c53651c71b0bb434ee74f7527192990774ae533c530aa08ee76be84d5147. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/JPKI02113734.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf6d3949121d1e3fe6f8ae64e87a0891eeda46a3bfce850cd3a0b31bf2d766136. 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/JPKI02113736.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf10a526de2c71d07b29cb96163ac7af789c2ef7c883146bbfadb9ce0bddb657a. 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/JPKI02113739.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7364855aeb9ee1846a7ab20f5f2f3a68245d929859033d78e7764aaf99adec96. Chain 2 (Bitcoin): anchored in block 960387 (2026-07-31T10:06:30Z), 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/JPKI02113720.
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
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x42cb4e67e902796adc5f7f6dd3052c9b06688a59802134393b8a4c468c8c2ff7. 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/JPKI02113723.
「キングコング対ゴジラ」メインタイトル
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7c6bf45ef83cd29341199192f44953856aa81de7e334d086d47ae9e179f08fe0. Chain 2 (Bitcoin): anchored in block 960113 (2026-07-29T13:38:16Z), 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/JPKI02113733.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc1d1715eb75ef9b6b7dfc8b8d99a52c6fce1672e2f0f54d35f99f00fa9979a35. Chain 2 (Bitcoin): anchored in block 960497 (2026-08-01T02:22:04Z), 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/JPKI02113735.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2f71260f71dfa1c743af668ec0bac0e58d107b84dd69ac426c8e0a495de63083. 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/JPKI02113737.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x15552673dc6f65dcb60f2e260b639b44d886e9d687ce40867c3b7d102aadfd5e. Chain 2 (Bitcoin): anchored in block 960207 (2026-07-30T04:47:22Z), 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/JPKI02113738.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x99d0fb7940c160934c82a67459b9bea4a895050e2b431816f08e5e4161c316df. Chain 2 (Bitcoin): anchored in block 960095 (2026-07-29T11:07:37Z), 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/JPKI02113740.