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 0xb4afb7a0e433caadbd90105a05d55572cd2c0abff4389f7b0770c141bd3f9840. 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/2709ae79-8096-4d3d-934b-108c16713807.json and https://artists.proofprofile.net/proofs/artist/2709ae79-8096-4d3d-934b-108c16713807.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 0xeadfe6b3bb376012835a77c8a7a6c99b97498a16e1eceb2f29015d817848b46b. 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/TWA211350801.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x31b098b6642afae132e008e9d0ecd5313b086cb00476b4bfce8c4456db749bd0. 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/TWA211328802.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x24385d7a3024ebab119d0a2eaeae9ecbc25adf2fea267f910c6033ae093a4523. 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/TWA211328705.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbdbf2f6d969bccf27ea455ce65d2f4ffbba2a9d65a61f5403602f77a572edf19. 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/TWA211328806.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x42c202582fa808bc51aac2e21a214096ed54fc6d3666e7a7560a8e8620b92a5f. 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/TWA211328807.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe7f5e703dfe0dbe83e2f6fee1df74f74aee81c2d0aed61006012f4c6930dd57a. 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/TWS651200101.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0ce31aea3e79afac0630fe5b84f4d0efa54c88a77b99f290d905da30e040c105. 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/TWS651200104.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x02cb97c62e2ef9ed00759939b45081f5d908d6659b973229a792ec37398563f6. Chain 2 (Bitcoin): anchored in block 957061 (2026-07-07T16:07:00Z), 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/TWS651200105.
為什麼像個愛情故事，明明我看的是偵探小說。
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x213b3b176216991cd1aec631f4511df778be9491ac69e007441c7088a83f22fd. 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/TWCT71700001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe0b9e36b26300345b1a145bcdc1e52f69cb617d2bf4003c99d86afe2a63a0c35. 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/TWCT71700002.
多想將一切做得完美 (電視劇《他們在畢業的前一天爆炸 二部曲》插曲)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x067f4fe66df0c33c7f513d86e7d009c1f49db0c2a704d9c68bed805387fd11f3. 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/TWCT71700004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9d334c284c6141649e50dc693e582d509d58f095f0762bba83d5f86fa6781c1e. 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/TWCT71700006.
一時脆弱 (電視劇《他們在畢業的前一天爆炸 二部曲》片頭曲)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7974eaba9078de9e0537c1ed75105366718557adf61fb4249b59558e14e1d1b4. 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/TWCT71700007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4f5dbc6c7380fbc7c3880fe2c2696732a46e793609466b662062cfa6b6ba093e. 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/TWCT71700009.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9d4c095869751643508aafac564b8c81427b984ccc68b4c46c8a756ed36ac64b. 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/TWCT71700010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf23c14691afdb8be259efa2e76db38a94d4f196877bb6f6729d2dda79e4ac0f0. Chain 2 (Bitcoin): anchored in block 959107 (2026-07-22T07:19:23Z), 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/TWCT71700008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9d334c284c6141649e50dc693e582d509d58f095f0762bba83d5f86fa6781c1e. Chain 2 (Bitcoin): anchored in block 957073 (2026-07-07T18:39:05Z), 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/TWCT71700006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbaff1cf0bc1579ab6cefa43324a538fa4df8816a8db41b04db931998d48f6ac6. 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/TWA211328702.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5e86b127b8152031f572f98123fc34f243a30eab2a9d8da3b5434994f67383c2. 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/TWA211328704.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x24385d7a3024ebab119d0a2eaeae9ecbc25adf2fea267f910c6033ae093a4523. 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/TWA211328705.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x14c8d685f7b8691f0215b0f829636a4a91e3ddc04417a5cef57783b309867aa3. 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/TWA211328706.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4ef4df512df245c8553fe0e7567ac33192b253a6ea0c59f046c76d167c57cf9f. 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/TWA211328707.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2edcc74b22dacb46198eb32e9eb7c3814082fc604e06b2373703ddbf8076487c. 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/TWA211328708.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5d1778283bee13d4611ba77f8ff5118c76ba8ed2b0cba2467bf060392412920b. 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/TWA211328711.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9fb1807f486393906bd48e8f96303084deb7f9c77000ca6e71e2bac322edada3. 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/TWA211328712.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x99cb9b761f7ad5e0d9be47f80b1f522f08a054bed3239afc15d76b99ca1a247d. Chain 2 (Bitcoin): anchored in block 959132 (2026-07-22T13:20:46Z), 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/TWA211328701.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x465d8d953ee26ab0fdab783af10d3c026364f7e50a57070763a5bf138087b52c. Chain 2 (Bitcoin): anchored in block 959159 (2026-07-22T17:48:40Z), 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/TWA211328703.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd1600ab55c8dd25e0a1d400134baff504965c56140dc452d1003d824a6c2a2a3. 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/TWS511100001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5218d68c58aa542ae7c9c376a18a0e0c4250fa014bcbdf1ef265e58815cc9d3f. 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/TWS511100002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc7d416c01a774d05422be6130f334f688c5addb5b488abd4b62cedd5dce30b14. 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/TWS511100005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x14949c055221bf000a6fe5c5ddd716a0485fba6f1a7ec8817ba383098b081798. 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/TWS511100006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeb4b0ee9f83170ea061dea4f51d75d7afa7de860aa4bec4802beac71a964a72f. 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/TWS511100007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x923852fa050c87b879a8e215aaf9e0d728b4698f6afc0bf889c79eb396d0b539. 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/TWS511100008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfac4ba1136b3513b906722c1bcbc8680f07c027fde100cbcbbf6734dfbebb2c1. 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/TWS511100009.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaf1ec5558a4b77c7356a3c03f62664cee33e57b837db7ed3c1ef27b6623e8da4. Chain 2 (Bitcoin): anchored in block 959146 (2026-07-22T15:41:47Z), 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/TWS511100010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x266bcca58c41cf1e9f87fb98fe35bf21ef4ffa59c8a65cc870b235b457c6f895. 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/TWCT71700025.
我們一定會再相遇 (《鬥魚》電影版片尾曲)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe520f3b878bcfeb2dcc5bd1d063fca80192c36610d88109402e83c97a50ec99f. 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/TWCT71700015.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x213b3b176216991cd1aec631f4511df778be9491ac69e007441c7088a83f22fd. 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/TWCT71700001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xab4948f2931cc14d2aa388c3f2f637e88f93451cb65e2e760d79080be8703892. 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/TWA211458501.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x14c8d685f7b8691f0215b0f829636a4a91e3ddc04417a5cef57783b309867aa3. 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/TWA211328706.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9fb1807f486393906bd48e8f96303084deb7f9c77000ca6e71e2bac322edada3. 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/TWA211328712.