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 0x4ac2ea721c2a6f33c6ebeca6792bc84a867544f050c19d79708d36668cb92f0d. Chain 2 (Bitcoin): anchored in block 953408 (2026-06-12T19:28:13Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/185abbbf-488a-4eca-8fd0-cb70bd5979e1.json and https://artists.proofprofile.net/proofs/artist/185abbbf-488a-4eca-8fd0-cb70bd5979e1.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
TVアニメ「ブルーピリオド」オリジナル・サウンドトラック
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 0x291c4f1d5e334c1e61779af3843e18341a96101a95404cafc5799479f9ed0750. 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/JPL352100115.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x581f96ca0f922d647855a46b3d83f86d8370fb6e28dc7262e6873cc48313b98e. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/JPL352100116.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9c0c51c30d5745fb31b5229fbba292647a604b4c39a0cbac0bc9a943edcc2d9f. 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/JPL352100117.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x434f853453a9fc68575fea39f68cc2abb6d7c1b38d4e0145930b8ccbed50dfe0. 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/JPL352100118.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x33088e883541e60f50e6656e1c7a101199709a5ef532cb6f3306c0ab7b34e5c7. 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/JPL352100119.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc694347c0233d05c1b3f07aacfe72581556549169e7a0fc28faac0a638c2bad6. 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/JPL352100120.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeb8ba850d020e7a657be8d4d5079aea7c3243e77c647ff448e415e4d515be284. 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/JPL352100121.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x883495f1946f60ef1470be04511d443ef698eed918ece870c0d1e35058e24020. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/JPL352100122.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6a4d63caecd3f49ec359495a7ff3cd5bcc2f16098e4db585a1d1dd92e6c3bc7e. 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/JPL352100123.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4350f9b8f55dff56c73114f8b8204ed0632293a5553577d30ab98647e95cbbcf. 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/JPL352100124.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf0582c076d26d126378fc975dbc9fe220d841976c98e15b85705976c62b0caf0. 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/JPL352100125.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9c93374318e778afb2103797b02b97be726e70cbc2690b7ee0c91ee6f0e11cc6. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/JPL352100126.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8e7c42df26b8f3570a6bcc7aa3106c07339b13cf3e1e3b7069c59d20962b2702. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/JPL352100127.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9f1c8255f5ba0c7d949cce40939ed373077eb5348bcf55a7e916e02b2a3e9e26. 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/JPL352100128.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe25a238f2cecb0953e21f64b6b09a6319ce5be6eb11bf16e0251915907bf6ead. Chain 2 (Bitcoin): anchored in block 956889 (2026-07-06T06:56:49Z), 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/JPL352100129.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x46c91eded8df0f2dbdd9eddfec4a9b13c26a79df729170033438215644cdd6d8. 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/JPL352100130.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x86b5ab7138e549eaa4e0b01ab008b15372f6a6593217735aa91689c8563ce800. 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/JPL352100131.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3eee3f38483418805749906505a429d91c4eca2ee0750999ec88c0bc23c30631. 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/JPL352100132.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6ee9be83075f7ef8e067d5a0d404b65a14fd896679f9d8ea222d1e74473cac08. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/JPL352100133.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc2667213eca5873735cc6119e0bc1c62c6e8fb4171d4af25c598cbb748c3eb61. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/JPL352100134.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6cb1e3b90c9bc7051a12c8299227b110479b3a5b14b36f328d9ae1ac2c4a7a3d. 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/JPL352100135.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x81a9ea26e2f2a80e45d73f7c266f2bfa82fbfd36f3686691fce2ee616d3d4155. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-17T00:21:37Z), 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/JPL352100136.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaf84c371fbb0087426074c8b5c71f33e8e61f17c6d12f1fe981d404d91e95cfd. 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/JPL352100137.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfcb74c77ab55c4cc4ad6ae178088be246f0e760cd127855a7421eb69b63d7249. 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/JPL352100138.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaaa2ee9c6a99f40782658a26f08ae4256e167d01349dc5d4c3ac926f53d9f226. 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/JPL352100139.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe1f7350e7b8113ab7379272968c32baafad9d45e9f1cd6e71189c6935369d776. 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/JPL352100140.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x247a0c59e3394cb1290f666520c3132198627446fd4a8488a3de095503f020f7. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/JPL352100141.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa4fe84e644d30ea6b903600f540e3cf18519b9dc660c0cd18a221c3c01a494b7. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/JPL352100142.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2c9c6402397417ff7fae6499994e483886605bcd1d36100dd6b1d4b6e435fda5. Chain 2 (Bitcoin): anchored in block 956349 (2026-07-02T11:34:59Z), 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/JPL352100143.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3be58840441c442b2abe8e1921ef483ab85e2ccaf73b3a97c9fd554d181dd820. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-17T00:21:25Z), 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/JPL352100144.