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 0x60a8cfeb00a6cd2ef9cf7bbeb41012863388a883baac82314d810e2daf88f76e. Chain 2 (Bitcoin): anchored in block 953407 (2026-06-12T19:24:56Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/9f86b17a-964a-4f24-9f6c-890e4d619731.json and https://artists.proofprofile.net/proofs/artist/9f86b17a-964a-4f24-9f6c-890e4d619731.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 0xb41f877f3d2a8e919578a2ba1f58ce3cfbf717dda5b761163d1d86cdae3f3959. Chain 2 (Bitcoin): anchored in block 957747 (2026-07-12T19:35:06Z), 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/THWOR2100007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6934bf48c379ad804d8b2f7684e344dbdd90067c49ac27a3cfcb790e542a22ad. Chain 2 (Bitcoin): anchored in block 958316 (2026-07-17T00:11:16Z), 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/THWOR2100008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x700d0170f6e5227cf986db6d99ba713d468f4994fbc214bcd7d7599473635894. Chain 2 (Bitcoin): anchored in block 956822 (2026-07-05T18:48:28Z), 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/THWOR2100016.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x995875aeed505f320769daefa6f20960f88b12027ce5b1d66a5a8b71694b9e85. Chain 2 (Bitcoin): anchored in block 958319 (2026-07-17T02:10:14Z), 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/TH1111400276.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6f91cc66720b595b1e60b8b24842e5b227a71807b03c776745e413e7a1b30d81. 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/TH1111400277.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2586a44d5e8d675ec56eabb355d46136aab51d1b3732d6093c3c5b657bd76809. Chain 2 (Bitcoin): anchored in block 958552 (2026-07-18T13:15:29Z), 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/TH1111400278.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaf1e5e815fa593555a0d8cad895aa544afb46837e99a92316c029aec05814254. 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/TH1111400281.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe7d9c4570a445270a707e2daf401a8f7cfe29892f87a85ee92f1186381c263e5. Chain 2 (Bitcoin): anchored in block 958300 (2026-07-16T16:14:30Z), 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/TH1111400284.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcd34881faae612e20c3459c1859dac80a83be471a27291c1fd803c5ec8c2e283. Chain 2 (Bitcoin): anchored in block 957747 (2026-07-12T19:35:06Z), 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/TH1111400287.
เธอกับฉันกับคนอื่น ๆ
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe8f7ffbadd2c5d1401fa7231c8b357f1fcc2352baf835bed572f579796ebb7fd. 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/TH1111400291.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x558abf4339c6c280f909f746750497fbf269ebff3234cf49d8cd3ae4c9bd0062. 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/TH1111400292.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x81d65378cbb8b929f5aa1f9a5e8ee7b7b171ca79f11602f1e4a98e00efed14e5. Chain 2 (Bitcoin): anchored in block 958256 (2026-07-16T07:22:18Z), 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/TH1111400295.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0aab6ff8299951a3ad2b0cbf69d165f285a436cb8f54f09c571dddd292ca3369. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), 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/TH1111400296.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfabcc6ccd4dc108f6558b71dea00cdaad84f278b1b2e9ebaaca7b6a5fbf4dad4. 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/TH1111400305.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcc06adf046d9b8976d432c29ddd0bdcf32d7d06bf76a920610652c22bdbd8950. 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/TH1111400306.
ตะไคร่น้ำสุดขอบฟ้า
กว่าจะถึงพรุ่งนี้
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe879f4514a559dee454ff83d2c109443a59cf4de3d7e750189946cd864497406. Chain 2 (Bitcoin): anchored in block 958951 (2026-07-21T04:48:54Z), 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/TH1111400311.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3a54d669273f75a05b68abc02f2529ecb644d9bdd688de7e73500c564af5add5. Chain 2 (Bitcoin): anchored in block 959047 (2026-07-21T20:28:08Z), 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/TH1111400315.