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 0x623d96c58c870f84ee4f91d5cec7bd9afed55e7c0d9d831ea5ff21250ac64ba8. Chain 2 (Bitcoin): anchored in block 953641 (2026-06-14T13:54:28Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/3c96dc7f-ef8a-42b2-9eb0-f0d6445f438d.json and https://artists.proofprofile.net/proofs/artist/3c96dc7f-ef8a-42b2-9eb0-f0d6445f438d.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
寓言式的深黑色風景 (Dark Scene in the Allegorical Way / 寓言式的深黑色风景)
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 0x2a80f1d00025d3cc36f9dbc99192f2e35f4f3ec90eddfad387bce0f010fde1dd. Chain 2 (Bitcoin): anchored in block 959069 (2026-07-21T22:32:59Z), 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/CNZ511800092.
我們如此超群絕倫怎能居於世俗所見
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3daaa8467989add4e19c4f1de7b0b44c150779ae267872c3a0229a939e25f743. Chain 2 (Bitcoin): anchored in block 958420 (2026-07-17T13:33:01Z), 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/TWP011513410.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x85bcd32207b6ed3c9dcafcfec8e7f6d7956735fd1f413f818f2b107140345c4f. Chain 2 (Bitcoin): anchored in block 958838 (2026-07-20T07:01:21Z), 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/CNZ511800086.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6d81705f40ad859bd8fb72224e894c90710ab607a120540151034044e4b7af48. Chain 2 (Bitcoin): anchored in block 958506 (2026-07-18T06:14:51Z), 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/CNZ511800406.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd655685d588ee924d8a06bf362b375c89dab2d1ccd7842b6374c1c10fc1186ad. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), 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/CNZ511800408.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8360b0dff2892fe8df7702f7a010d82863a3368c04f9d1e71f9f174f32ae06e1. Chain 2 (Bitcoin): anchored in block 958276 (2026-07-16T13:04:58Z), 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/CNZ511800410.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x950f451a6a6205fdafb9b8ef4df93ff3d46c88f8436d985525fe02ec10c82760. Chain 2 (Bitcoin): anchored in block 956474 (2026-07-03T08:56:35Z), 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/CNZ882400182.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfd544fc3c66fb4dc049ddcf44c93d7b6c9f24e6154ec4f6decf8d7325cf0c906. Chain 2 (Bitcoin): anchored in block 958969 (2026-07-21T04:58:13Z), 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/CNZ882400181.