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 0x16d80ff0b38e9e16c419cbc985bfb7ebb0272489bf43af5be2820d21e295c6b8. Chain 2 (Bitcoin): anchored in block 953408 (2026-06-12T19:28:13Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/1fbaa701-9358-460f-a4de-d877b41144a9.json and https://artists.proofprofile.net/proofs/artist/1fbaa701-9358-460f-a4de-d877b41144a9.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 0xe3a31b6f37cbd75dedc79f9abffa81824334ea95b05acd81d3e51acd0663d55b. Chain 2 (Bitcoin): anchored in block 958448 (2026-07-17T19:49:21Z), 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/QZHN62017431.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x49d614093b3d5f177f6ee0988e8541f2452f2a82b8e007693c159ada1d95c972. Chain 2 (Bitcoin): anchored in block 958601 (2026-07-18T19:27:02Z), 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/QZHN62017436.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfaee106417ed1cec8d6566816034bc9dbb6ea0b0da9cfe5c78d630d51a235897. Chain 2 (Bitcoin): anchored in block 958157 (2026-07-15T15:02:23Z), 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/QZK6P2023800.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xea7e913a7088fc4b737af5f853ed39558bf50bb329d5193c6dee36894b4c4eb3. Chain 2 (Bitcoin): anchored in block 958601 (2026-07-18T19:27:02Z), 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/QZES52099326.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd896fdb0bcf7c2f5f3474940633e83656e3a48fdbdd43caa3f20fae5e5aa4273. Chain 2 (Bitcoin): anchored in block 956560 (2026-07-03T23:28:02Z), 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/QZFZ32112920.
မန္တလေးတပင်ရွှေထီး
ကောက်ရိုးလေးတစ်မျှင်
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x17f07e44fd0418869853e0c05860389b827d8c7b0147382b97f344a5ffe46eeb. Chain 2 (Bitcoin): anchored in block 958834 (2026-07-20T05:55:47Z), 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/FRX762314826.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xecf8848f82abf2ffd38b90bbb7dc649363b36651d73684e36f65fb6900894101. Chain 2 (Bitcoin): anchored in block 958673 (2026-07-19T05:38:28Z), 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/FRX452437543.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1a9dd9debe369bd8b54a43e320739f5fa0620d2c3fa3546664c1d2fb8fd5ce98. 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/DGA0T2412277.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x63bb4315a39bfa0ccebd624bf695222068d56700d43817706e3dd0dcf98eb29d. 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/DGA0R2430593.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc09e7f7a0a0d8993170b3e53954029b7e6e173586e56f2355dafc3ce02529a75. Chain 2 (Bitcoin): anchored in block 957891 (2026-07-13T18:21:04Z), 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/DGA0P2468667.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xae78ddb044efe37a80f992a951f331151c700ba32fd594a3d057d4c25dd753e5. Chain 2 (Bitcoin): anchored in block 958303 (2026-07-16T16:39:24Z), 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/DGA0T2412281.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd918be694a2e72e3f709cc612e6656bf123f73602489b641e0e0c72bb6697fc3. Chain 2 (Bitcoin): anchored in block 957599 (2026-07-11T19:42:17Z), 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/FR59R2593374.