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 0x15ce0b0e447e2be636f668a58ffcd8477b6628f3519798e2fa16818f1d8b1011. Chain 2 (Bitcoin): anchored in block 953630 (2026-06-14T12:06:27Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/3049b0b4-1cf9-4a73-9985-64e8abf2912e.json and https://artists.proofprofile.net/proofs/artist/3049b0b4-1cf9-4a73-9985-64e8abf2912e.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 0xea2edfde71c86dfa71771ded7a25f4abb400bd8fc8e8dc3f952a56820bad4d2c. 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/HKG731591459.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x17b332861455baaa3cb622dcd633977ccd8c7943eab0a70f534c7e83ef30bb82. 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/HKG731591505.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcc8d39a092326ce9a01b87570c7ec4c4b5154e40273970765175090f919ac015. 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/HKG731741180.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x23086891f9fc6253c0eaf8ceb056bb24bfaedc1fbb506e792b426901dc3be7a8. 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/HKE672400275.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9d8bc8b7b5a0f246fba8de1e7ae97a4d97ea8a533a9eebc21ce2ed1b85277f07. 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/HKE672400276.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0236331ffd707ec99161ec77cb6199e955c73a0fd9912f077c143d092daae8cc. 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/HKE672400282.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5075cd21f0da92dc895d95ed61767c208c2b269a4335b9301769eac509675e12. 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/TWI432200106.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x64e79254f863bb540e9a2833398cedcb1f72ae4638b3c5fc58aeace5f0c41d17. 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/TWI432200107.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4c0d4087a42fc1ad652996c27c9fefd8753311a0270d6f38b33f2c88fba85f1c. Chain 2 (Bitcoin): anchored in block 957075 (2026-07-07T18:50:38Z), 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/TWI432200109.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x51e3fd60b343562c3ce5d005c198ae970d87f153796a820c7e168e2a24d46e8e. 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/TWI432200110.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf91f9d453ae8dbbee4af84dadfc2f3017b6e5ef12e1b364b9aa0e072b819181e. Chain 2 (Bitcoin): anchored in block 960422 (2026-07-31T15:27:29Z), 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/TWI432200103.
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 0x96ee91866b0767bb0fac80f247bad88fa47c0108ae111a90de07d28a63ffc1c2. Chain 2 (Bitcoin): anchored in block 960506 (2026-08-01T03:50:58Z), 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/TWI432200104.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfa3b0afce9ee1257dfdc1347a3ae476de9584766eaea084adcd7a699528e47f6. Chain 2 (Bitcoin): anchored in block 960376 (2026-07-31T09:09:19Z), 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/TWI432200105.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2d57eb55b22e6dceae99403c8afb43a3adaffb486d701f9534270e43b085dbdf. 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/TWI432200108.
痛苦的时候不能够在一起，那还能叫伙伴吗
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6253dba32f5e30540c335b3fcd2dfe3b88dfbfbdb6d2c59e4c4673caead31272. 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/QZZ972321760.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe93c05ec8379a0a3b3820793892490f64f7cf8687a63629835dd66d4497e0734. 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/DGA082288757.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcdbabfec32454a36e75976596829bf29c3884227521c3fd8fc15ec118ce1adc6. 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/DGA082288758.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x27cbdb7d85de3bf948138a1b8a585983b4768628ceb296f3539a276a84e713af. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/DGA082288759.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfbb96234828d05cc06abe5eb256e5b06301f72b54a7b2a12cc191b22af31f929. 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/DGA082288760.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc1e61340069cd7806ca9ce635cf61f5087f796c00b54c3e42af170a856e60357. 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/DGA082288761.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf964fd96f648e52fc90b4c4d5d9fb61980081aa5bc5871e1832ad430bc763dd2. 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/DGA082288762.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0ad40a8d0bdc3996da2ea32fc919e9474ae9a64c16e1ed37b3b61595bb97432d. 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/DGA082288763.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x76e35195a392a4164c3be717aa8a3852d69e848bc4887fbbc9875781c28ce758. 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/DGA082288764.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2a76ca49945990057dd56baa06c4efeca156c140bade1e5d43beb23ecf7e8015. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/DGA082288765.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe3369bda3c941cd35ff8fb4d249346c6275909a1e520b9c57ed9ccf45e527ef4. 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/DGA082288766.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xff3c93c46f3729a9173795a7422caeeb94bd5b7bbab0470d8bb2826194614a32. 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/TWAE32100700.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x97ec86dea68dee64c1b01bb3552c2cd771d6e4a4d2e5b11971f64e9ed7714397. 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/TWAE32100706.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2fb4850a522c8a86d1f00df05dd9ff225f33ef47f52e6c822f8927771094ba10. 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/TWAE32100719.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb1284a509f6b30b43e3334b6a943fe7fe1f6662a34281183a6d63388e8777eed. 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/HKG732433087.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa11d3f78db21b185ad123ba91fd7e0cb2da4b39d383f2733cf217ce71ca4e865. 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/HKG732433093.