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 0x0856f957b1918756962ba6f6d814674d0ed43dd927dcd775ce9b2063eb85da43. 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/c026c09d-5763-41e2-b516-48c223992303.json and https://artists.proofprofile.net/proofs/artist/c026c09d-5763-41e2-b516-48c223992303.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 0x66abb2d1d2419c80f8e676c02ee074090410d12999806d2965f181b6c544bc33. 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/DGA062475424.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xee0b0a036821dd02f10c455086eac3650a6af16d8b16d8411481085b9fdff48a. Chain 2 (Bitcoin): anchored in block 958042 (2026-07-14T18:24:07Z), 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/FRX202443768.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1c0e3298b3e9761cfe65368b690a9ccad6235225be8e803035a291d430db8f34. 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/FRX202443769.
如果我们在余生相遇 - 十二星座合集
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0c3c8eb8723e482c058ca323d22ed949526d8920436ebd6fcd29a3bb510299f6. 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/FRX452424092.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf0abb1b24eb1f6c468203d4827c54e0dc2cad66f738f49b8947f58c61735b5c4. Chain 2 (Bitcoin): anchored in block 960418 (2026-07-31T15:20:15Z), 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/FRX202443766.
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 0x8e35f8a42376d999d4fb5b69b549819c64f254a66a7a4f7c8cf95b8a59609d31. 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/FRX202443767.
如果我们在余生相遇 - 十二星座合集变调
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5179d0e551034f190b35758710e192690a9eee671bfa7b99884eb73dcfecce29. Chain 2 (Bitcoin): anchored in block 960247 (2026-07-30T10:42:33Z), 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/FRX452424089.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf230fee2590dfa03f575e7066d44907d0ae18378782677765bd34ffaacad43b7. 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/FRX202448610.
如果我们在余生相遇·白羊座 - 变调版
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x418e1ef5cdcf1d69aebff94c37807f5675f268fc0455c6acf761670eaff8bf92. 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/FRX202464876.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x99cb3ba1d9633224594f3f2519d231e572e01efb6ee4f729b6e5eee41f595d4a. 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/FR96X2415420.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5f334aa44a18680df102df657ce914d52792c9499864e3d1645c184119be9808. 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/FR2X42455450.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7adb95378095b2b2da003680353eebe7e726238d539b642a041d9ca8bf2ee314. 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/FR2X42455449.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8fa06593224873302909f03f8357f37f5805890ca3c672102d97d305795c7d4e. 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/DGA062340975.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbf8a2c0adb8cb4fb58416e90f3697b7c45fbb0ccdb4a21b7636875f244ad8e37. Chain 2 (Bitcoin): anchored in block 956891 (2026-07-06T07:16:32Z), 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/DGA062340976.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeb37f78fb25ae491bd22ef0b2a3eed255d8dfaa416bdc5bf14dadcdc71623bde. 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/DGA062340977.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdc1bce798e717ad582c44dd6a7533c6668623663eada1385637e5488fa31174b. 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/DGA062340978.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8a80eb71bcdec091883145c9b7cd5036eb45b6a64198fb3eccd43500a126df7d. 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/DGA082336867.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x945416c9b5c1250aaf36ddce4b0ba9c5d8998129585e1580ab59a251952da286. 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/DGA082336868.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3491ae7921181eaeeb5da743a6366ea41277c9ed976d3e740ae22c1d8bf3e79c. 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/DGA052352309.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7bb6a4318341a2f24ea25c031d20e42e4f6bb40e5cc0d9713eb7bce8110e507f. 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/HKG732349924.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6b40606cd2911154bc65c952fccd2647e7ccabe68b21deec03a9d06ecdde1c86. 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/FR96X2307997.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x363695f96b11c646ed331587a4cca9c205126ca5b116da8d6dea1d9253dbad50. 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/FR59R2316985.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb8c64ae51d1475a28bccfbf0c9e51ce7ce0cd8ac122367df5cdc1bfd226def0a. 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/DGA082201793.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6de8388156b2fa0282853a7332b94c517c6b6a56a3ca7f44b3d90091682702cc. 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/FR96X2569697.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0eda6b6f8acc196e55387512924580b2307159746257297c74a43d0405128324. Chain 2 (Bitcoin): anchored in block 960456 (2026-07-31T19:53:57Z), 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/FR96X2569698.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xda65f091adeb4c0f60ca240e29e8da4ab48e6127302a3cd4800d99300c8353ed. 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/FR59R2507315.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcdff3af7e957ed484d0b87eb6209247b864bd6a182e21c1bf71ca90f16fdb1fb. Chain 2 (Bitcoin): anchored in block 960513 (2026-08-01T04:52:22Z), 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/FR59R2507316.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0331c8b16e4d62fd61e44a8ba4da0851760b340b42e481187f7836bc3ea6c9c9. Chain 2 (Bitcoin): anchored in block 957032 (2026-07-07T11:43:09Z), 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/DGA0Q2407904.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x764eb9c5819ebf7a0609f56b627dfce9b48c7613aeafe59af637e26934761a00. 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/HKE022302998.