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 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
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x79c7b91aa844bb91e4a1827f0da1ab74f06030e720a66beb6eb16bb92d226975. Chain 2 (Bitcoin): anchored in block 953783 (2026-06-15T12:24:43Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/d714e6d3-2152-4334-9320-ec6a766e3e2b.json and https://artists.proofprofile.net/proofs/artist/d714e6d3-2152-4334-9320-ec6a766e3e2b.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
风的话 - 《我的小确幸》影视剧片头主题曲
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 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
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x39f722f63aae67f9a55f7849084c26a38b98b98d7e675dafe2f2802b7abae72b. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/FR2X42141799.
亲密感 - 《我的小确幸》影视剧片尾主题曲
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0526ed99d6107934f1b56af247f38187bdcfe20c6530e4118dbf6a9456457d05. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/FR2X42141800.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb1ae028962906b748a4ad0a2d957670fd5add895b28ad82924f4ae8e9628d340. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/FR2X42141801.
我们就像这样 - 《我的小确幸》影视剧插曲
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xce63e2f5db4dcbad0e7224f3a22707200f8c3fd81b8b6d8972e4492582babb48. 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/FR2X42141802.
我的小确幸 - 《我的小确幸》影视剧配乐
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfac53a044ccba2563b9e68acdf0bbc598073b32978a3affd6067d0df9aac6922. 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/FR2X42141803.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xba9e32ec6551c07cc1d477a09e22717aa49ba21a78ff59c77e0528255bdac13a. 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/FR2X42141805.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8f0238138772ea4add50744ec4587593f8a71b35e0244d745d96d408f53db40a. Chain 2 (Bitcoin): anchored in block 959123 (2026-07-22T11:35:32Z), 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/FR2X42141806.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x47b24eb404d0b28c4227ca2e51211f470cb0827f2ee93c24e7e925437efdc704. Chain 2 (Bitcoin): anchored in block 959128 (2026-07-22T12:33:25Z), 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/FR2X42141807.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf376c978a680e80c8f8b4c238082132d428dd92ed232b74de72ada7d323ec227. 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/FR2X42141808.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcf4ed6e562ddf0c397b7c03e9763fa53cd4c4eae94e931873728d8c18f9dc3ed. 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/FR10S2030732.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbc89483df6f6552ca82dd381857637c554bb07b1fc3e0d85d22db074d2e595dc. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/FR10S2030733.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9f2535c4393f0ea49f5cc43757599487cf5c8fe3811f2bcde7078f315a749200. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/FR10S2030734.
自从遇见你 - 女生版（电视剧《少主且慢行》插曲）
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2b6e33cbaddbe4f086c2e40e71f2c12e12a94ce3b675216963db295df86161dc. 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/FR10S2030735.
时间的答案 (《披荆斩棘第四季》主题曲)
时间的答案 - 《披荆斩棘第四季》主题曲
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x20e64541c9f3d9d53b77b09cc55eb8e6a455abcb2a8a5f6258f42ea8774372dc. 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/DGA092416015.
Hear the Love You Whisper (電視劇《你聽起來很甜》片尾曲)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4bd03cddca1cfd43c976f653ae73498b74187b4232dc62a0516b30afe150bd9e. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/TWU712003785.
心要你聽見 (電視劇《你聽起來很甜》插曲)
時光成語花落地 (電視劇《完美關係》片尾曲)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x08e8e123352f624db74e1b60dc50a3d5bb9ad6ce284e3059ad7be4a737e0c7a4. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/HKG732236909.
魚與天空的午夜對白 (電視劇《拜託請你愛我》主題曲)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2cffe5606bb0649c060d75524d6ae8a980b75190d3a727bebb4bbc571f548756. 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/TWU711905692.