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 0xecbfb2de4af8e7750afe270fa9d7532fbb2b5482c78dc32824c9737d8b21522a. 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/2ab5955e-8212-4678-8dbc-251a5cf233ea.json and https://artists.proofprofile.net/proofs/artist/2ab5955e-8212-4678-8dbc-251a5cf233ea.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
遇見更幸福的自己 （電視劇《彩虹的重力》插曲）
誰念鏡中緣 (電視劇《春閨夢裡人》相守插曲)
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 0xab613f591ba14884512dbd4e7e1d9b616a5b3884437769c23afb6f9cb77ae9e3. Chain 2 (Bitcoin): anchored in block 957898 (2026-07-13T19:28:48Z), 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/TWU712409783.
你陪著我的那些時光 (網絡劇《我和我的時光少年》片尾曲)
意外 (電視劇《你是我的城池營壘》片尾曲)
在你身邊降落 (電視劇《對你不止是喜歡》插曲)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf1ccd354a809e2d899b73593de8363d0ae5725cb13159fd2bedd80f7983c8363. 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/TWU712305061.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x67f3d7abf86831db0f0b6b823c0c92d07ae37f15de66b9399b918d8da80004a3. 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/TWDL72017007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf3c38cc8be8e6f4ef8a049b2c19dde2de555d151f572c7c52c728b314af0779a. Chain 2 (Bitcoin): anchored in block 956889 (2026-07-06T06:56:49Z), 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/TWU712001523.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe91fd222921698e466ddaca390b056280a53aaf152a94341f68e685a73ee345a. Chain 2 (Bitcoin): anchored in block 957032 (2026-07-07T11:43:09Z), 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/TWU712301183.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcbbef2db0f31dbec52e3295f3079534fb61186e63110f36e9f9fb5e1291f2767. Chain 2 (Bitcoin): anchored in block 960360 (2026-07-31T06:42:11Z), 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/TWU712101464.
未知的旅行(電視劇《三生有幸遇上你》片頭曲)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9561e65cd570ce9c1b587c6882530b39bd0ef5ab2febc97a9fbd61ae978cc2d6. 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/TWCT52206970.
藥香引 (電視劇《七夜雪》淺觸心弦插曲)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xda50d73371dbdc41315c4834fe080159ed63fdf74baaf9eb9879b327205e6111. 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/TWU712408067.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x24bf18cc2b7df28172a359b29929118f9cdcdeeba7d293992d3b7604c696e5ec. Chain 2 (Bitcoin): anchored in block 960291 (2026-07-30T18:23:33Z), 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/TWU712408068.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9164148d717b6f1b2f60fbf2ed19dae7eb269ad08026e88c3ef92b94b36a60f4. 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/TWU712202541.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa64b53223897d6971d337879e5707879d90396bdd97064259ad7f467f9f92ca9. Chain 2 (Bitcoin): anchored in block 960379 (2026-07-31T09:25:34Z), 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/CNZ842100007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x76fd7c81f1d41122e1be59781f0bb01edb0b2715911d9ed3699be549f6b78852. 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/DGA0P2467460.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfcce1ad7e7e09925b8af1ea5f8d2b08aed693b6616bf05995e70e41d74414dcd. 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/HKE022210758.