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 0xc5ca8442fd1284e9dbc0a37d92c0291c3df661eadcb2d1d756a17b74efc4c820. 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/085d5912-021d-4363-bcfb-e80cb97e806e.json and https://artists.proofprofile.net/proofs/artist/085d5912-021d-4363-bcfb-e80cb97e806e.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 0x9f9009d86cd634f53135135948628640d6afd2e728a46d0737d7905ea6621f3d. 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/HKG732001637.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x635f0172235b5dd536627e94b88e7065736251f85de70d7757ea78d410d775cc. Chain 2 (Bitcoin): anchored in block 956841 (2026-07-05T22:14:35Z), 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/HKG732001631.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe131ab63345cfc59c26bd2a453a8a8ee1e7c669a8e0246fe6214b02a142d3d9f. 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/HKG732001628.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x829731fc53626d0489d46ea13c08661dd15e5c9b4a4a75b704029a3b879c34cd. Chain 2 (Bitcoin): anchored in block 958383 (2026-07-17T10:57:22Z), 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/HKG732001625.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xadde07f50362b3e45279c16030e489e7e6242edf954ea9fb96f1e36b98a31f28. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), 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/HKG732001622.
你喜欢我吗 (《鳄鱼与牙签鸟》电视剧插曲)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0d412ccd3f46df2e431117833f2d6419d0c1129ee0f0c7cd33cf6e2eea4ae327. Chain 2 (Bitcoin): anchored in block 958194 (2026-07-15T22:44:16Z), 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/HKG732007512.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe2f0675a5fe7a2d10db94445f8e65a9cfea1833ac5944533c5527a0b07fbdf9f. 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/QNSM12400632.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaa8f37ef364486b834dc8a5b43661db8285e458f06b4e59b8b58bf0820e9fd01. 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/HKG732317814.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9e17f62b45e840954cf7923b3dd48d0d93b7b0b628db2f59a585ecfc576085fd. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/HKG731600146.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe8faa36883eeeaaf1235c3d0d65d8b2d01120a43d1289346a885190aff408466. 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/DGA052048058.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4d1f1e88ac5303d428cb0cf95c673fe2edfc9b16bbecb2c40a74de827eed90e1. 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/CNZ632301546.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd4cd9ed177f6743709a0196fa2aeb38d9117e49aaecd6a371117cedffd0fbc25. 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/HKG732287566.