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 0xedd68bb9817013d2e9d6a150b90d18297ba8b27bac7403d777e5afda47abd2f1. 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/d209c505-33f3-479d-98c4-0a069dd6cc99.json and https://artists.proofprofile.net/proofs/artist/d209c505-33f3-479d-98c4-0a069dd6cc99.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
好运跟着来 / 发财发财 / 红彤彤的新年
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 0x414f083d90fc4e254274b1533072f2d02b73f646c6ebc4818f1bf58f16f1f0cc. Chain 2 (Bitcoin): anchored in block 959061 (2026-07-21T21:34:21Z), 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/MYWT11055106.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcf153a75f9c6e4cf279810cc9c99b9ffdd65627ad92a01708d3f5ddae75115ad. Chain 2 (Bitcoin): anchored in block 957766 (2026-07-12T22:25:04Z), 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/MYWT11055109.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc8b3a86ab81e9e33546e3953716b2a5cdc68496327c0b1dcb3f01b8180156b10. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), 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/MYWT11055110.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x835346184ef72bee90428cf9663b26edfaa8ad34d3bd63630febe6d39eed5560. Chain 2 (Bitcoin): anchored in block 956420 (2026-07-03T00:42:11Z), 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/MYWT11055115.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc87c4a08785d23511a3c72711c2cbe9927ddd6caa679a86db8d3d19e942085eb. Chain 2 (Bitcoin): anchored in block 958176 (2026-07-15T17:14:36Z), 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/MYWT11155197.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3d34f6abd54ec2ddc9b4d2d6809a8e4207752d38c86ec42b7a98a8eebabe7001. Chain 2 (Bitcoin): anchored in block 958975 (2026-07-21T06:12:52Z), 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/MYWT11155200.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdfb329514615e81388633d1ba45cc85bad54b230ab8c56dacc9142ad469cad8b. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), 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/MYWT11155195.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb35f54c09eb965a3f0a3c5e61f95a150412b65a3410702e96abbf89b638ae7dd. Chain 2 (Bitcoin): anchored in block 958152 (2026-07-15T12:00:27Z), 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/MYWT11155198.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x14fd1d1fa65c16470a6cb0a2139c57909a029d5cc54b628a630a498501c7e42c. Chain 2 (Bitcoin): anchored in block 956856 (2026-07-06T01:25:57Z), 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/MYWT11155194.