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 0x145cecf48a096414a59e9a57559f86913d464aa3f7d6236adc297a2b2bdd0e8f. Chain 2 (Bitcoin): anchored in block 953812 (2026-06-15T17:06:52Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/f60538c9-0834-4248-809b-c4f59e151b12.json and https://artists.proofprofile.net/proofs/artist/f60538c9-0834-4248-809b-c4f59e151b12.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
愛的代價 (電視劇《帶著爸爸去留學》概念主題曲)
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 0x4af7ed9a4b771a37d2ba387d24cbc5eba989f7da681555875679925cb35b4502. 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/CNE221900147.
等你的日子不值一提 (電視劇《帶著爸爸去留學》插曲)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0a545340e4716adc96ca9df316d2ea85e47f2c1fad6ac68e19f7a9af7ab9e0a1. 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/CNE221900143.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x36835c75d99996ab44c7e8a6a5cc7bc28ab873cefdbfa6c14a4fe83f0b30da1f. 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/HKG732278351.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe50ff6d31cb11b1550c15a2a6df6ee659a8cee8bb0fb94407f69adeca95a2508. 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/HKG732140819.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd909f8979cb948937db1e1d04740b1deb747740550f0d89fdfc37dbcaa46845d. 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/HKG732140822.
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.
成都第31届世界大学生夏季运动会主题推广歌曲
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x32e861794668016f6871ff5b9da0d77564be17bef34b2c02c231957c0e50c901. 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/HKG732278335.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0affa34b9eff6e05d2ce93b7932fffbaec7502ce5ccc78ff30c0f5e43797862f. 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/HKG732278336.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x56c22a02e5554764e122ef00e5d90ab781a37811664cce11f96134dd27718864. 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/HKG732278343.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6f6186e12f607cca313e9445be5a2c4607216f5ce4f298328badbce06bd9ba5e. 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/HKG732278344.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3093f21527bd3590c40efd44e956de78173c435da6adc9e6dbfe9821e6cc4311. 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/HKG732278347.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x762623c054e25877315072e31cba9c1583c23c09a1171b15789321871088ff60. 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/HKG732278348.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc072630b5a8affee1134acce0f1603dfe2b85279257ee071e108eb8d8f614f97. 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/FRX452030266.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x756efbef6d00879c9836109fcc2699b6f8c205436d75cd08618b382721f835df. 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/HKG732250413.
对面的女孩看过来（青春重置计划5 请回答1999）
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf3cddcf8e5b33b995d76703641da5a06f08070396bce810240aa2fad2ae9cd72. 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/HKG732288644.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd9683a474c4deb0923bf38edaad4115f609b03772ac49fec4dd0e340e980034e. 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/FR10S2191705.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb02c887630751d729c30dfe53820da288e473e904a2a96715df3f1e3430ce4f2. 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/FR10S2191706.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3298ccd18c93e619dc5f6d42d8f46662e91e503f3d57babd1a26034ba606841c. 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/FR10S2191707.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2fed7bec0abe29d80ad8e712bd270775b801999cdc3d20526c1767471dcedaff. 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/FR10S2191710.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdad41a24933f9392a03cffe842fea5c0358991161de4cfbf19515b75bb7a8d95. 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/FR10S2191711.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9817ff782d6464db04c9009fc65c2bb3de1b4a30456c8bb1a28b04a91250ffcf. 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/FR10S2191639.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0a400ba157334adeb6a84d9fc51f01d4ce4e768e0be9fe881dbd29e18c7eb014. 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/FR10S2191641.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x01656380f0438264cb97f861589a0688803f59891f232a88cbdc83e80ca3a0c7. 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/FR10S2191644.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbe0680e796b5edf1c32986af0708d3cf236b9263917832ff55e2f7b15181a790. 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/FR10S2191646.