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 0xffba92db06522bd74528dc9bb3e94ae4fdb8f423db0f4fe5afc5b6bbde93633a. Chain 2 (Bitcoin): anchored in block 954742 (2026-06-21T20:46:40Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/fda4d4d0-1a20-49ba-bade-b302520feba7.json and https://artists.proofprofile.net/proofs/artist/fda4d4d0-1a20-49ba-bade-b302520feba7.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
传承 (太平洋影音四十五周年纪念专辑)
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 0xfc4b3e2822a4a5f0a313600db89dd2d5606decdb610cd90772264717d2faba23. Chain 2 (Bitcoin): anchored in block 959114 (2026-07-22T08:41:42Z), 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/CNF121201231.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9844d6f80638f39dc45b7e576af9dac02f785c3dc306efd5e2299f9f56afd2aa. 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/CNF121701051.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x359e2bbd661995a0c69a0ff311e15183a0efd5d8c0f1cf86dc7a6b437549a2ec. 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/CNF121200077.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1b0c3bac3916dfe46beb7765035d3b1b04df10e414ca3b273ebd73954e702e73. 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/CNF121200081.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x624d5af960c6cb6288cbefed7361a342f73dc024f5585e8f6209f49244141792. 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/CNF121200080.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbfa9526ffe802474eb3e84f86c5ba4429bc548453e48030ea3f7a59157acb52a. 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/CNF121200083.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x84f5200743084db4eff0608268499817b622468a11c1e820137d95fca39980f3. Chain 2 (Bitcoin): anchored in block 960314 (2026-07-30T21:00:46Z), 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/CNF121200078.
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 0x656e83f2f26735dadf85be185e4dbf4615180a7c54a5df2af5806eefb4040ea7. Chain 2 (Bitcoin): anchored in block 960494 (2026-08-01T01:44:32Z), 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/CNF121200091.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x999a2950072ce4334ce276961293da9a49b0e9eeebe91f9e71fc66d660915d5b. Chain 2 (Bitcoin): anchored in block 960489 (2026-08-01T00:40:43Z), 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/CNF121200079.
大师集 8 闵惠芬 二胡专辑 (2022 Remastered Version)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf7cb2ec273909f937939185c5862d1a95d7a673e84eaa23714d1fa8b2823731e. Chain 2 (Bitcoin): anchored in block 957122 (2026-07-08T03:39:04Z), 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/QZV2N2218625.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf245453d9d3161d6e07368f3af3fcd5bf2eae6159d50a23e410c206f5c70d8e7. 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/QZV2N2218622.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1eeaf5b52d2a941db3bb531641e4f7c475f0601e3afbc82f125eeaad02902747. Chain 2 (Bitcoin): anchored in block 960144 (2026-07-29T21:09:47Z), 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/QZV2N2218623.
纪念中国唱片100年·—民族器乐名家名曲经典2·花好月圆I
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8b672337c5aa4611b592f7b130ac5ef60b4d77165a6dc6cb1ea43c0fb82d23b5. 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/QZV2N2221206.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe88638449f5ac1d18a9e32fc9cd95b92c6f0eccfc3176664b677583ac6c50d7c. 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/QZV2N2221208.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd82f05e6ec3ce9e47373f077a3672549ac77d3a4a38272ec611beb3dfe828a10. 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/QZV2N2221207.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe0933de40da020075c5147c274d23d461342689f52aec2fdf310c7de69e5f1e6. 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/QZV2N2221209.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbcc189914a6962cff9c2c6cfab332bcc186d66fbcf690ddfd097a3564284cc47. 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/FR2X42242189.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfc6675a6708ca34d73b763d12c2f4aa7636972d8cc0e8fa40ae05015a2618ea9. 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/FR2X42242194.