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 0x3cd8851b98edc021cc5b657b8f7d11c19ebbe1f4280c2dd186ce895f1d2719d8. 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/a29bdd51-d070-453a-8317-4f38c5b9317f.json and https://artists.proofprofile.net/proofs/artist/a29bdd51-d070-453a-8317-4f38c5b9317f.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 0x3d3f3690bd490b19f5d8af24e71e5a00f634d52c1746fb47798bebd4c1fbbcbe. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), 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/TCJPO2134186.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf00556286bbc05acede1dbb20042abc0f9862fa25f01214a4823994996b47b23. Chain 2 (Bitcoin): anchored in block 958601 (2026-07-18T19:27:02Z), 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/TCJPN2033081.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0295cefdeca0b027b765d31c6d15ef8b9e9f0fcb835cfe69c46267aa95845afa. Chain 2 (Bitcoin): anchored in block 956894 (2026-07-21T08:57:51Z), 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/TCJPO2167800.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcf33dec875de0adda0df40892228f7e543d2eb42c1dfe00054d0d0304ca5a285. Chain 2 (Bitcoin): anchored in block 958110 (2026-07-15T06:57:12Z), 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/TCJPP2158766.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcaf7cf7d0029eaf0eb8101129e671136e28e5c059bc011385b0bf7af92f5c090. Chain 2 (Bitcoin): anchored in block 956474 (2026-07-03T08:56:35Z), 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/TCJPR2207950.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x172f9b0eca847ac88e8ccc7444d7aeff959aefaa0fad732e8c346b62e70f1e9d. 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/TCJPS2205379.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb0c5c6f00dd6482f7ae0fb60ae67748719c9241a5d5848a1697ae8f20073fd16. Chain 2 (Bitcoin): anchored in block 958245 (2026-07-16T05:50:22Z), 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/TCJPS2205390.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf43393c381ff4903627d7f4148a35afdc82e68ea08ffbaaee20c3f096175dfd4. Chain 2 (Bitcoin): anchored in block 956551 (2026-07-03T21:18:05Z), 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/TCJPS2213466.
TOMARENAI!!! (feat. PAIN, Emma & 百足) [Remix]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x26aaa1aeacc64c958a3fd7dfe841f1ecea773bb7afe0e7380fddb8ebcb9565d9. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), 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/TCJPT2217296.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbf070643f9fbbb2981f0ecba1fa80b8e3cd62fcd7f3584a96f4bbd0fac454314. Chain 2 (Bitcoin): anchored in block 958861 (2026-07-20T10:02:52Z), 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/TCJPU2399209.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x28bf66bc0d55974f23607939f58851ae791442a12c659de645fdafddb3438f25. Chain 2 (Bitcoin): anchored in block 958908 (2026-07-20T19:17:16Z), 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/TCJPV2374816.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5a281fcec774320e1e9ae2dd9809bbedf4b5f528752ac8bb5e7ada3781a8b87e. Chain 2 (Bitcoin): anchored in block 958802 (2026-07-20T01:04:02Z), 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/TCJPV2374830.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5ce361dbb8f373b8efc5c41aa094a589846e9dabefaa24b746681d142d984da5. Chain 2 (Bitcoin): anchored in block 958587 (2026-07-18T17:06:26Z), 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/TCJPO2134188.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5182f1d55bbc92e79ce504be14028968a094131db0161eb16e2fa2fad2f2986b. Chain 2 (Bitcoin): anchored in block 958690 (2026-07-19T07:14:39Z), 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/TCJPO2133842.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x19b56b6184336ed8b35200710f276bb2ae6f2a4ddd50c5327454b09a50b07be7. Chain 2 (Bitcoin): anchored in block 958808 (2026-07-20T02:49:15Z), 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/TCJPV2374823.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf43393c381ff4903627d7f4148a35afdc82e68ea08ffbaaee20c3f096175dfd4. Chain 2 (Bitcoin): anchored in block 956748 (2026-07-05T05:55:59Z), 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/TCJPS2213466.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbf070643f9fbbb2981f0ecba1fa80b8e3cd62fcd7f3584a96f4bbd0fac454314. Chain 2 (Bitcoin): anchored in block 958792 (2026-07-19T22:55:52Z), 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/TCJPU2399209.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5fa3012710da51b906cd62d213fe4aefa92af4a5e113b61028d7e7824cf6b2ba. Chain 2 (Bitcoin): anchored in block 958876 (2026-07-20T12:15:48Z), 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/TCJPT2217825.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf022ee689b9927c9c2297b46963022376bbaaab5e2ce631451a05de00c2c2108. Chain 2 (Bitcoin): anchored in block 956738 (2026-07-05T04:47:21Z), 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/TCJPB2496740.