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 0xc3212edcfe2945cc83eefe5d33b5c965dfc8802797a57620ce4e81ff4635118a. Chain 2 (Bitcoin): anchored in block 953786 (2026-06-15T12:56:12Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/db53ebab-ea17-46f4-8699-c0192a4add36.json and https://artists.proofprofile.net/proofs/artist/db53ebab-ea17-46f4-8699-c0192a4add36.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
一闪一闪亮星星 影视原声带 Part 3：The Entire World & For Lovers
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 0x3ee3a279aedfc610f15aaef171292dec77e58147d7a01147ba9b9c155104a65b. 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/HKG731610934.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x31bc41783f5eae559877cae4a8daca9b674fd5194b98e3bde6a7cc077788e31a. 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/HKG731610935.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa900c30a11876856665e1cc966b5c7265002ce7e0d61b80bc97d066cf7a685d9. 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/HKG731610936.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x38ef35b7bb49a100c831ca070ca5a424c8595f24e5b4340093a2ec0cfd90c924. 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/TWU712303726.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x60afb136f96a0fae91e1daadce592953ca5bdcf2b7ff3b9e9cb55347fb6430be. 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/TWU712303728.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5ff91f1f649d5df67212a58ff2116c3bea9775e2561045da9397cf587a4bacee. 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/FR59R2343114.
可能愛人 (ดอกไม้ไฟ 中文版‧泰劇《上癮》片頭曲)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0379619f950f2b6dc7c33c2d0ba52a84663bc242649cf8685021414d645f0616. 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/TWU712404177.
忘不了 (《風吹半夏》年代經典OST特別企劃)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x35b9fe6e13a0ca4a75f9754b0484eacf3d2f85ffe9adfa0a36679e3480c8acf1. Chain 2 (Bitcoin): anchored in block 957819 (2026-07-13T07:53:33Z), 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/TWU712205730.
岁月如歌（粤好听•青春重置计划特别篇）
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0a3a9ffb9437a23766e8c16031f16a47eeda2571eab91aa667de8e7512305c51. 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/CNE222100600.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc6732be2d6cda57e9bfb467a444189cee838d277d061d6a52a356defb0c81acc. Chain 2 (Bitcoin): anchored in block 959128 (2026-07-22T14:48:00Z), 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/FRX202042278.
引力 (影視劇《向風而行》片尾曲暨主題曲)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe7a5c324fa744b5f42b06c955260db4c6586f2ab70fa31866972e5d688d5f263. 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/TWU712300033.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xda239654afc3612eecd8921c31fb22704939ff44fb6a51afbffdada2a465dbdf. 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/TWU712300031.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3c1661cfd0e53b39e2e60644cec26f77e2a9bd4becb95fc123937f630255ce62. 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/TWU712300085.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xed65605e6c78a268eab72db52d325303445a2ebddfe7a5530e6f9ad595464153. 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/TWU712300086.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x34cf126222b6fafd9c9c8fa361dabac8f4df254a6fde6b07dccebfab0dc40f53. 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/TWU712300035.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xea6b31b187ed31e1069660121fe9ddee5afc091385c67eb5249f66a2b8c49a59. 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/TWU712300087.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaa750d2e4c741f246e50773556ba42762fe698bea83a5f09b34ab08d0e564823. Chain 2 (Bitcoin): anchored in block 959147 (2026-07-22T15:43:44Z), 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/TWU712300088.
电视剧《云中谁寄锦书来》影视原声音乐
侧颜 - 电视剧《云中谁寄锦书来》片尾曲
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x41b3783388a8b137092cb95df033afbedeab42243d7197f375d4c38db0bab601. 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/FR10S2352530.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x68ac1e16e9d984cd64a840e506f993f8977040563f30578f74d8d17ae85e8a7f. 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/CNUM72500043.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x96d8b9f4bb7032c919cd262ccd0ab04bab0039ba8709b3178ecba4df32cb7634. 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/CNUM72500047.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x53b361260a1d9fe41e7ef83b8a7019ae9f9000961f8fbc215067692348c89e6e. 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/CNUM72500051.