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 0xd4a9ee67846402f2c990eafb3966304d991c78fc66b0a12102e7cd0248768905. 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/5fd1ff1d-5070-4343-bc74-e2f5f9fade5d.json and https://artists.proofprofile.net/proofs/artist/5fd1ff1d-5070-4343-bc74-e2f5f9fade5d.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
มีแต่เธอในหัวใจ
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 0x6d166fab6cb9c4d9dca784ba0820e6d33691b0966ebfb9332f15fbe1f88d011e. Chain 2 (Bitcoin): anchored in block 956889 (2026-07-06T06:56:49Z), 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/THSOH2101620.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x20af975361e6545dc6ebdea311a55887e0abeb82095cf9e482a28a621269e7f7. Chain 2 (Bitcoin): anchored in block 959001 (2026-07-21T11:41:42Z), 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/THSOH2101622.
Tat 2 feat. FIIXD,JIGSAW,UrboyTJ,1MILL,NINO
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcae2b620829712dacbc042f763d56fe7927aa0e4ccf8795a0b6df27ab5c1b67e. Chain 2 (Bitcoin): anchored in block 958959 (2026-07-21T03:51:22Z), 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/THSOH2101488.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd56f567c2f781b7f5819b10cce58b39e665e3029bbd084ad5a7cac1152fe80e5. 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/THSOH2101497.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb29d919ed1bc76e03e0d80f0c2792260ccdfb3ee1c63a2c3048dbf308b639dcb. 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/THSOH2101736.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8bdff002a94b67b3eebe5ba3a885ce5bdf9205cccf2b39f26a7794d776d154ee. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), 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/THSOH2102770.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb1320b1e5c0a2cc38674f3bac51cf3dfd4e1005df01ee6824465ca05e0eb783d. 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/THSOH2102771.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3c945d4807e97b42d5078afe42d338a32b4c9fbdd6d50a124e924c7611b78305. Chain 2 (Bitcoin): anchored in block 956822 (2026-07-05T18:48:28Z), 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/THSOH2102772.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x433d3b4c9d307a079c5bad366f34f8d3ce117d90d4ed4a8d8d4ce7372fe71f2c. Chain 2 (Bitcoin): anchored in block 956484 (2026-07-03T10:47:44Z), 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/THSOH2202221.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf9679976922245aea63ae6abfb6b90cca2cba89f385f51e8a2c4ff06fe8aef5a. 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/THSOH2207849.
ประกาศนียบัตรมัธยมปลาย
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6108736d463d109ecc13c23fe5836fdd80c2cab4fc065ccfdea99a2f02ccb243. 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/THSOH2404714.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3e59f4788c245e1c6aba1f03747bbddd61ec7584196054e9619d4b75a43953d3. Chain 2 (Bitcoin): anchored in block 958388 (2026-07-17T09:14:21Z), 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/THSOH2409495.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe34c2d35a64a67d2165620ae23aa4afd65343c06b4ed8703202c593a65c9f818. Chain 2 (Bitcoin): anchored in block 958792 (2026-07-19T22:55:52Z), 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/THSOH2501396.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x078fac8f7ebdff578a75092026cc609fb50daf49f757a7b7872d96f30def5c72. Chain 2 (Bitcoin): anchored in block 958817 (2026-07-20T03:52:09Z), 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/THSOH2501400.