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 0x2170209b1b24e7995f5562c261db74ccecd68aa959c8960809816113dd3543b9. 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/df44157b-ffe2-4dd4-8927-4862b8141563.json and https://artists.proofprofile.net/proofs/artist/df44157b-ffe2-4dd4-8927-4862b8141563.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
我沒有如果（電影《絕殺慕尼克》推廣曲）
凡人之軀（電視劇《末代廚娘》片尾主題曲）
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 0x2f4020a45da2907d1f64de66166a13e7cfe4cc923d0800782bfd1c3edbe7aebf. Chain 2 (Bitcoin): anchored in block 958238 (2026-07-16T04:30:31Z), 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/HKG732527615.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1340e4c017dc1176de55b03de3bcb6df2f2f37dda0c6443ac341ddf0663be7be. Chain 2 (Bitcoin): anchored in block 958798 (2026-07-20T00:05:41Z), 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/FRX452567743.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x85d360b02c94abb1a40e9b791ff411d1396345e1b823326c2847a7a4cac47e41. Chain 2 (Bitcoin): anchored in block 956474 (2026-07-03T08:56:35Z), 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/ESA012587710.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6146fd434960251a2ba450a612c442a72d10bd943d086389dc9dd090888a15bb. Chain 2 (Bitcoin): anchored in block 958300 (2026-07-16T16:14:30Z), 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/ESA012587717.
少年之魂 (网剧《少年白马醉春风》燃情主题曲)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdb27b7e94d4406b516fbde1c471b66dbd030f7772808fecf9d86347ee097a8aa. 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/HKD012382660.
少年之魂 (网剧《少年白马醉春风》燃情主题曲) - 伴奏
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6c5379a07129ed6fc67e0780c2a01295ff440b1175094e6af908748535a7e603. Chain 2 (Bitcoin): anchored in block 960327 (2026-07-31T00:26:26Z), 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/HKD012382665.
灿烂灿烂 (《追光的日子》电视剧片尾主题曲)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6ae5a08275f3e5438981c33ff414ec56325a84d52ca5ea993d5c11858f167013. 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/TWU712302245.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xebed5a1d5e867b7d034edac5601eecd9fa62dd0e1858584953feb8f2715c966b. 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/FR59R2514082.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x809e72b76848964a1b7361900f32d09993128e4757e5236dad4d029b2cb064b5. 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/HKG732006027.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x63b6d8a3c9b632fd1f6c52fd2631d0f6b12ca4d4c5195465819b7a75ba09c9ca. Chain 2 (Bitcoin): anchored in block 960216 (2026-07-30T06:39:12Z), 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/HKG732006129.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x97b9339a6e6461be1af02119377130cb2d30eb4a87daa9d6a8cb6ead1ed4eaa9. 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/HKD012501199.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeb102005e4062eadc3a21ba3aae9662ed3542aeecc5e5c82214cbc4f747a6d2d. 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/HKD012501196.
Crossroad 霧 BKING 少俠 倉鼠俠 什么時候到燃點? More Love,More Trust - 純享版
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc8fb4b74bc0ceb003f0b8dc2950be8d5926f77e5863fc9fe3d5690dd8e98256e. Chain 2 (Bitcoin): anchored in block 960503 (2026-08-01T03:41:24Z), 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/HKG732006030.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x89cd3e371653f374c2a196a2bccc200881eae85cb7530a7c361fc20e1ddc0b56. 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/HKG732006032.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0b890e60dccb66e630134a2f7751ba3efb21b19b91195c591f1d79fa4c72961e. 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/TWU712505951.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2fabf5c32f7bfebaa0a671c9f6c87c143fd106c109b19d7e4dece722e340313e. 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/TWU712505960.