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 0xb3e67b84385ad8c46d54787dc352784ed954147e79c19d71fcdac51f5773b21a. Chain 2 (Bitcoin): anchored in block 953678 (2026-06-14T19:23:11Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/61f50f48-fa11-4ed3-88f2-055e2e049d45.json and https://artists.proofprofile.net/proofs/artist/61f50f48-fa11-4ed3-88f2-055e2e049d45.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 0x84199b6dec2647fd23303a449cab3ee0f64668179d2662b97f3756213891855a. 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/HKG731713331.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa7b2a6b623e7d504c0621ad8ac71598e456c9cfb107e21aa32fd2d31c91be973. Chain 2 (Bitcoin): anchored in block 958943 (2026-07-21T00:27:37Z), 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/HKG731720435.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xadfa9824bbd3304e533b3abf167587f22679e76a72d6753e4c6642cafbddb537. Chain 2 (Bitcoin): anchored in block 956776 (2026-07-05T10:59:37Z), 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/HKG731788308.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7f096b926c0fab1d05dfb24625d561df1e69bd7435216511b188f543fc70e5be. Chain 2 (Bitcoin): anchored in block 958325 (2026-07-16T23:56:01Z), 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/QZNWZ2297503.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2f0244d24f5e67a9f090064d3193dbb9e8d71f96629587a461e6ced1c8501dcb. Chain 2 (Bitcoin): anchored in block 958736 (2026-07-19T15:56:15Z), 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/QZHN42555872.
百战成诗2023 - 游戏《王者荣耀》113英雄群像献礼歌
百战成诗2023 (游戏《王者荣耀》113英雄群像献礼歌)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe11f52604b461fce667907c0580cc217b263c181596870f5d58597d7032244b4. 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/FR10S2382129.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3a20aee1683e2bd096c1d6345200f6d92efac36ffe3430868ce3e5b556b5b557. 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/HKG732274401.
百战成诗2023 - ——王者荣耀·113英雄群像献礼歌伴奏
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x53f8c1400293e80ffa89265d15999e53d774a724e1e8a3b5dba8b87abf2e69bc. Chain 2 (Bitcoin): anchored in block 957122 (2026-07-08T03:39:04Z), 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/FR10S2382130.