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 0x87208fd8b1774e21ed349bba9080b3153575fbe565eca1f16fa7e09347035c81. Chain 2 (Bitcoin): anchored in block 953423 (2026-06-12T21:20:00Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/337b0b9e-4460-4285-b82a-b5773bbc58ad.json and https://artists.proofprofile.net/proofs/artist/337b0b9e-4460-4285-b82a-b5773bbc58ad.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 0xdee8e2dd1974890698090abc5e42c48d03d10c5d324da5eca360d43da48d8c2b. Chain 2 (Bitcoin): anchored in block 956476 (2026-07-03T09:04:44Z), 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/JPPO01902762.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x387d892964e2aa0d1e88b807db6500b6d919b9b9f3e45e3219ad46bd37c1ef21. 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/JPPO01904531.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbd1f73ca0a791a11e7ed631208a0832db45135f7ad7b3673b9c1d352de111410. Chain 2 (Bitcoin): anchored in block 956656 (2026-07-04T14:03:39Z), 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/JPPO01904533.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3035dc803c20d84b5adabf1979e6c4d6635697eba6eb7a0cbff506b90d43aadf. 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/JPPO01904534.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc723acb13d150828f81de3fe34de19bcb06faa4780fffb4d4c06b0e13a70db01. Chain 2 (Bitcoin): anchored in block 958489 (2026-07-18T04:13:26Z), 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/JPPO01904536.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4e8a9e6254564682727a91449ed3c62ee0efc36abb152944c0e7fcc4ac7e692c. 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/JPPO01904538.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2389ac2ddece1d7adc1a7a396d22a0ce286da130df30a126e3a2c6b8dfa503f7. Chain 2 (Bitcoin): anchored in block 956656 (2026-07-04T14:03:39Z), 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/JPPO02100603.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x27904a00f35e3846d2fb88c49048607b9d36c01d25fa5279f30acd64db33e0fc. Chain 2 (Bitcoin): anchored in block 958286 (2026-07-16T12:43:37Z), 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/JPPO02105030.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6f8d69e3283d068a1dede969eda2be147b13c20f6e8c73e7269e52e88565027c. Chain 2 (Bitcoin): anchored in block 956639 (2026-07-04T11:19:20Z), 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/JPPO02105021.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x869d7a73c8acc05b109b964d6419149dc59673bfc3f8f24268d806dbe83cea85. Chain 2 (Bitcoin): anchored in block 956476 (2026-07-03T09:04:44Z), 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/JPPO02105022.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4fa9439df1e6f30407712654481a6130120195ad09572398807868114688fb54. Chain 2 (Bitcoin): anchored in block 958342 (2026-07-17T03:04:53Z), 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/JPPO02105023.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf4cab1c41423663048fa735a8735bcc9d3a0e9a4973b6384732b686407d581c7. Chain 2 (Bitcoin): anchored in block 958180 (2026-07-15T20:33:21Z), 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/JPPO02105024.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xae892b4d3565d5424e8d305f012f67092e9225b08458504d9aca413b196300db. Chain 2 (Bitcoin): anchored in block 958316 (2026-07-16T21:26:13Z), 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/JPPO02105025.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x762c1a02c8cca76a029014721f78dc3f30a56fabf160fe271029c6226b37b5d3. 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/JPPO02105027.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2172dbb281e21d0c6e223e7af4b95d2ecc39461a5363f0e3e6e24ad8a0572394. 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/JPPO02105028.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x515150e840af1ab0c2a3de6bd0e8ac9998c46a0fd76e1e646e54af462380abb8. Chain 2 (Bitcoin): anchored in block 956656 (2026-07-04T14:03:39Z), 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/JPPO02400201.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x66f68ea81b940b722d54c54beec663c409b9f9ac770733d9eba661d1ed647b6a. Chain 2 (Bitcoin): anchored in block 957805 (2026-07-13T04:34:37Z), 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/JPPO02402987.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe7b94b56e4062fd55adca78a164d17c77b0df92ca7e0c132d34819eb11919401. 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/JPPO02403563.
へんしん! (アニメ「村井の恋」オープニングテーマ TV Size)
へんしん! - アニメ「村井の恋」オープニングテーマ TV Size
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1e95cbe2c6fbede7b2384a31a6e324567778e50d2973127d967c4822ca5d0d06. Chain 2 (Bitcoin): anchored in block 958142 (2026-07-15T12:43:43Z), 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/JPPO02405652.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9f7db5060e543f892ab8015a5c027a4e37642d840c7d0701c9c4ced1100c71c1. 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/JP92E2500172.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x530ecd3f96905dfd970e30ec819f29281aaa7391faa9db1464dac44a263720c2. Chain 2 (Bitcoin): anchored in block 958383 (2026-07-17T08:20:01Z), 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/JP92E2500758.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xceee870db70f7a52ef6fdfd4b79bec6a5285f0692f53636a7e6011a3e711cbe8. Chain 2 (Bitcoin): anchored in block 958203 (2026-07-15T23:15:20Z), 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/JP92E2500943.