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 0x46492c1ec8142058754e72a676602407e813d4a74399d647dd92e7a5ba270250. Chain 2 (Bitcoin): anchored in block 954618 (2026-06-20T23:05:13Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/c8b50c97-1fbc-479d-9857-ac5e2754cd12.json and https://artists.proofprofile.net/proofs/artist/c8b50c97-1fbc-479d-9857-ac5e2754cd12.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
时间尽头 - 影视剧《奔向所有时空的你》主题曲
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 0xa85673c15e9dc20ee1d289a19953a22fa0487dabec3e32e8cdc5297f2f92357c. 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/DGA052450541.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa43d2d129173bbb762f9720504cfecb006395d4b0d2ae3ffea3a671332d8bcaf. 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/DGA052450542.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x04e09814ff94021d1cc0798799f1bca86244d239d25c08f1a295e6a5a850d338. 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/DGA052450543.
时间尽头 - 影视剧《奔向所有时空的你》主题曲伴奏
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x276441781f9ee8f8b288bdd1e2403c3991290b1911a9757ea0ec4752b2762141. 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/DGA052450544.
Feeling - 影视剧《奔向所有时空的你》插曲伴奏
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1fc54ea439b84ce19a1c50a6f61bbe69393cc50a8288b39e8e1857504008ae32. Chain 2 (Bitcoin): anchored in block 957212 (2026-07-08T18:33:44Z), 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/DGA052450546.
未来过去都与你相关 (网剧《本宫今天不加班》片头曲)
加一点甜 (电视剧《他在逆光中告白》插曲)
一言为定 [《镇魔道》网络电影主题曲(女生版)]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9d2b3195add01d30ab758f99f3fdaccdd37e9cb56a79f69d11de16baab58a51c. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/HKG731797008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x38060f2de11175c2e8d57af78eec10e1274eaa9377f58aa3e7857ce10133c3d4. 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/HKG731797010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9f498a3072ff21a3651f10cfc01549bca7752843e59eb292e9260f3b3787c847. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/HKG731797012.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xafcde562d630a510a2deed9b347dc3b8799c5b717a079e08e822c80eaa3937e9. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/HKG731797013.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd64d565861330e511e0ef16822361c555ccce56a5bd9782fd8b6a76ceb66d058. 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/HKG731797014.
执子之手（《祝卿好》影视剧插曲） - 伴奏版
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x384b45ad959661c763e1144716b4226e8666527432a6f1a87500142ca9401988. 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/HKG731797015.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe6e2e653737a7fcece251cfeebf92ba0f88900b0b59a8bc79f43f74a58983eed. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/HKG731797016.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x12ae6285b79461f0b471e05981f4c155453af5d293184574501d479220126eeb. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/HKG731797018.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5c139baf118f1205e263b77c6d765ef003061b570fb13c350267e5be3fc23d54. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/HKG731797019.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf10f19cdc149a221039fefe90b26784c32ab38c5477b616d386f81a985727ceb. Chain 2 (Bitcoin): anchored in block 960247 (2026-07-30T10:42:33Z), 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/HKG731797020.
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 Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch