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 0x56186027459d46cdd30bda27ad47bc9aa7758d64b7b6c299fbe97781cdb5c4d9. 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/955cb981-c51c-4760-b9d4-5d3023d4aab9.json and https://artists.proofprofile.net/proofs/artist/955cb981-c51c-4760-b9d4-5d3023d4aab9.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 0x5395bd6eda44c7dfaa45e5d511f6ed12a33a99ca082cebbd8cfd307e7fab717d. 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/TWCT52433102.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2d55bff32c1b1cb40ff6c43fe175acd63192fcd17ae0b4927c19132419b53bb0. 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/TWCT52433104.
風再起（電視劇《要久久愛》插曲） - 合唱版
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x55d1c760d6478f1b0199db7d4c1adcbe3ca61f0c95ed626f48d84f66a8c87c00. 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/TWCT52433107.
風再起（電視劇《要久久愛》插曲） - 獨唱版
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3fa38b9767eea28902bd0e30a99ddf020954d161d749710b8a780d1d79f18d28. 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/TWCT52433106.
從此害怕雨天（電視劇《要久久愛》插曲）
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x57efc88417d1d4121b378b8b1a88a36879d5d90e0613bf9a25a0573b36fe081d. 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/TWCT52433116.
猝不及防的愛情 - 電視劇《如懿傳》片頭曲、電視劇《遺失的2/1》片尾曲
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5d5ba942ef5b67de85a40c3a82da802f6a3587a3fc10304bc3b9c648f9e01054. 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/TWA211832001.
如果我們再相遇 - 電視劇《姐姐還活著》片尾曲、 《致,第三者》片頭曲
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x08f1ee0013faa980079a9b570ffe031b5a365bc01ac4b6e6b8c73a626de3046d. 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/TWA211555601.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x46371b4882ef1ab66d997867c75a26301d571a4a79aa6ca6b26693dff53acd76. 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/TWA211858301.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfb0922f4a28dfba623a1de2e5fc218d6373ff73338d285c373adf9631f73235c. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/TWA211851601.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf36fc83eef1990c444d9f0856bd93df0e1cf4a88626b6e6aab1156618509cbbe. 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/TWA211832007.
你是答案 - 電視劇《延禧攻略》《重逢的世界》《艾蜜麗的五件事》片尾曲、《祕密森林》《姐姐還活著》片頭曲
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xee611f6deed5ead49ee09191449e30792bc9ad58a9fc0a066c8d746faee2da4e. 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/TWA211832009.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x63e9b16384b30997bb5b9cec28fe7aa5efa5901e47dcd5b7647b7a4abb1ed224. 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/TWA211832010.
新的舊的 - 電視劇 《後菜鳥的燦爛時代》插曲
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf99edb0bf99c5a7dbeb4621bc48689a8973fef9a9922c1f58ec1cc82aa6f8080. 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/TWA211650701.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf27a884e0f63a034696c3e8f86b4ee2d1c7f256e67c92f4942a734962d3df4f2. 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/HKE022212134.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xabafa9406f5f4dffd493dbd250b3fcf521e1b4fe87e148a46a2a3fc84b911883. 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/HKE022212135.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x25629cf2dfba7d858ab415f9b30232be51602e466b2dfec57d4d924edf259e36. 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/HKC371731112.
你欠我一句晚安-電視劇「粉紅色時光」插曲
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xee611f6deed5ead49ee09191449e30792bc9ad58a9fc0a066c8d746faee2da4e. 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/TWA211832009.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x46371b4882ef1ab66d997867c75a26301d571a4a79aa6ca6b26693dff53acd76. 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/TWA211858301.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfb0922f4a28dfba623a1de2e5fc218d6373ff73338d285c373adf9631f73235c. 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/TWA211851601.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf99edb0bf99c5a7dbeb4621bc48689a8973fef9a9922c1f58ec1cc82aa6f8080. 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/TWA211650701.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x08f1ee0013faa980079a9b570ffe031b5a365bc01ac4b6e6b8c73a626de3046d. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/TWA211555601.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4b3f419f311e06fda4b3661dd8eaddf08cdac87ba9dfe4bc568a64483d04681f. 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/CNE222001495.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc905c6092187bafcf9577e3dc66dd73127010a6d20d2d634e7aa613c50cc71cc. 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/CNE222001503.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc7ee1b0f2903ce46202732290b6bcc22eef78c0a6625074218b81f4c58015610. 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/CNE222001516.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1b3fdbd0f96eabc50ee025d319a7908df6873119140c442eac8b96a39ded61f9. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/CNE222001489.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf8dd6f602bf15f2ac6104cd96741ffbb5081f5b28abb234aa2b9f91308401007. 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/CNE222001519.
我們之間, 我們之外 (影視劇《司藤》插曲)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbd6116149b01e6538581e76cd1d8bc1496485f43bb52b80482486a30689d8a7c. 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/CNE222001524.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6a80a03f6cd13453a84ab870a470c7641b9e396dc91c2e2b4471a4a8e422dd1a. Chain 2 (Bitcoin): anchored in block 957073 (2026-07-21T16:40:20Z), 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/QM4TX2506483.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc09c47790e6e19d39f52a96e2d1f6b191a8e80c282cc19d2d4e27548a5d87c51. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/QM4TX2506484.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd3be330a0bcfa8a4feeff68d1b06f4679be5ce43d10468ffe606fef12faca4e4. 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/QM4TX2506505.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2f5be43ae9112f80feca1dfdab8aee1dc8454051efeab48956ec5f0f04f37edf. 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/QM4TX2506518.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd36db789c15bd7bd24dcf0aa60f2e1dda6ae469ab040c80038ca25bbc883acaf. 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/QM4TX2506522.
河畔少年（紀錄片《我的家鄉我的河》主題曲）
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x873ddad70b189c74b4c1412cb1d86a99dd005ac6ef44b51407a202da06564ce7. 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/CNZ852411319.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5253e97f756f4eeeda7d4d46dab95bad4dfb82fdd3d68f05ea152782d67eced3. 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/HKC372479797.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7dfff4c9ab05764353468d3827bee0388ea075f48e09010ed5251de9675e2a1c. 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/HKC372479799.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe4827b6330c24003afcd11b6ce52c2092b95f643168b06c171a7ef9845634389. 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/HKC372479800.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa9c637bf5e5fed984b504cd418f4ac180f91e2631252fcbfefca80a4c7d69a2e. 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/HKC372479801.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc28060dc57c4368de46d3a754dbe6a7fa3dd0ae2b7074666ea52d799df2433a2. 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/HKC372479803.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1a60eac91225e5f3bdc605a8a93105a5ebd25a1172b569a79a9a813dc28aeeea. 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/HKC372479805.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x24dd377fe08dd72991bb46330ef88cd1d72fe0c40e0e3c353d4656816b17e846. 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/FR59R2575059.