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 0x9587b5eb38b219c99159115517c401803e0dd9d3a65699da770f218b8855267b. 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/56642e59-c986-4a01-a175-b7ee97ab8c41.json and https://artists.proofprofile.net/proofs/artist/56642e59-c986-4a01-a175-b7ee97ab8c41.ots, the client at https://opentimestamps.org runs `ots verify -f record.json proof.ots`.
មនុស្សល្អដូចអូនមិនសមស្រលាញ់បង
ស៊ាំនឹងខូចចិត្ត​
ឈប់ប៉ោឡែដើម្បីអូន
ភ្លេចថាយើងបែកគ្នា
ស្រលាញ់គេម្នាក់ឯង
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 0xa4dfba32d5d79e4ef975bb2e3ccf610821e70c885412ea005727b3690b601936. Chain 2 (Bitcoin): anchored in block 958256 (2026-07-16T07:22:18Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DGA0L2363948 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0d468dd49e5d9f8595a557158aaf75c0b326b38ee0875ee0e6584eabe154f5c9. Chain 2 (Bitcoin): anchored in block 958903 (2026-07-20T15:22:45Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DGA0L2363950 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd2974d7f05d0504e32e31c7e6abb19a78e36d5bf06029bbfcf2fcb5b1914ff0b. Chain 2 (Bitcoin): anchored in block 958256 (2026-07-16T07:22:18Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DGA0L2363951 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0d4b6e66d08146b239496c06257307c31e293f6442f9eb2080e49c095ea6417c. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DGA0L2397611 — a six-check JSON result.
ត្រលប់រកគេវិញចុះ
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8f447882e23fcc95ed46593ff263205a39592b536f8352f28fdfa6c640f8dcf5. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DGA0P2301744 — a six-check JSON result.
ត្រូវគ្នាវិញបានទេ
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3aa325acfd2ca7b7f246be74ebd0ec454434cc0176013398919abe109268a76c. Chain 2 (Bitcoin): anchored in block 958942 (2026-07-21T00:24:07Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DGA0P2324503 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9e86196fd4552a67ef521200a828aabc792f7d6a02f845d8711f814c49646e78. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DGA0Q2384248 — a six-check JSON result.
បងបានរូបថតគេបានអូន
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeb2f328bdb5ddef2316ef9e380f17445e5ed40a20d92f3593037ef3b9e0fe2ec. Chain 2 (Bitcoin): anchored in block 958397 (2026-07-17T10:29:45Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DGA0Q2384252 — a six-check JSON result.
ស្នាមថើបចុងក្រោយ
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x44df999b3e9568e92ac7ac318a0846de00660ec7c45c8ac3d9bc3712d6a7f167. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DGA0Q2384255 — a six-check JSON result.
ស្រឡាញ់នាងឲ្យលើសប្រពន្ធ
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1be2ba48d96159be519ea7df662d6a3ac18910557f3ac040b7521a40887506b0. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/FR96X2448012 — a six-check JSON result.
ត្រៀមចិត្តសម្រាប់ឈឺ
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x12e18a509ec1d993bec5a33eb793987d783b16855ef38c513df2eaecbe04bc53. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/FRX282487402 — a six-check JSON result.
នៅបារម្ភសង្សារក្មេង (Live)
ស្នាមថើបចុងក្រោយ (Deluxe)
រឿងមួយអូនឲ្យមិនបាន
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x98191b5284732ea359fcd049ab2b2b5d282dc6803e35c35717ddbc428a9360ba. Chain 2 (Bitcoin): anchored in block 958980 (2026-07-21T07:04:12Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DGA0P2448901 — a six-check JSON result.
បេះដូងភ្លីភ្លេី
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x27b8832600e19b3b547b0330aa04addab1ed3d5a86cdf0e104552cc9c4d72dcf. Chain 2 (Bitcoin): anchored in block 959100 (2026-07-22T05:29:55Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/FRX452510310 — a six-check JSON result.
មុននឹងលោកត្រូវបែក
អោយបងរស់វិញបានទេ?
អ្នកផ្សេងមិនដូចអូន
កុំធ្វើយ៉ាងហ្នឹង
ត្រលប់រកគេវិញចុះបើខ្វះមិនបាន
សុខៗនឹកសង្សារចាស់
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x97cea6627b835b282e0ad692fed7f90efec7067a4215583a6c30daa4d1f91d7d. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DGA052507882 — a six-check JSON result.
ក្លាយជាសង្សារគ្នាពីពេលណា
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbc8c1fb533f1e637a2c741b2c197c40abfac2367bbf2f4c85dc0fbb10e8904de. Chain 2 (Bitcoin): anchored in block 956891 (2026-07-06T07:16:32Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DGA052591371 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb1e9e0eb1b25966cc55ad058062cab5465a9a5fdc66206893412ee6c4a59a4b4. Chain 2 (Bitcoin): anchored in block 958489 (2026-07-18T04:13:26Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DGA062549629 — a six-check JSON result.