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 0x0e31e5c2f90ee5897cf414b9147830eece9db25012b6c89bb6189a7c3b35069b. 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/d975d8d8-af28-4b06-a73c-bfeba9745c09.json and https://artists.proofprofile.net/proofs/artist/d975d8d8-af28-4b06-a73c-bfeba9745c09.ots, the client at https://opentimestamps.org runs `ots verify -f record.json proof.ots`.
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 0x2f5854935fe22e1eef24c1156393e5520145aeb6b6a40a6ec43947ad04673dce. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), 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/QZES72205560 — a six-check JSON result.
Buong tay anh trong chieu day thuong nho... - #SS
Nhớ em trong chiều mưa nặng hạt... - #SS
i'm not your choice.......because him......
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7a7246e41a9a9c6cd3837e8a7a26a906183c28ff69666f906e15e7155bebe0c7. Chain 2 (Bitcoin): anchored in block 958300 (2026-07-16T16:14:30Z), 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/QZTB72277015 — a six-check JSON result.
em la can benh anh chang the giu lai.......
anh khong biet do la lan cuoi minh ben nhau....
anh thuc day nhung ben canh chang con em....
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1d41c02e54679d98bdbe62476f773eed245cfcb3bb5e9a6a735b50ef0dbd1481. Chain 2 (Bitcoin): anchored in block 958202 (2026-07-15T21:23:21Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZHN72328476 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2604077c388e37acffe2d7b08133107c3e33fad0fd5992be291c61fe0886b730. Chain 2 (Bitcoin): anchored in block 958461 (2026-07-17T23:18:11Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/VNA2F2300123 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x545d8e864f24084fd2266b6be65bf1a93e7c5b88d695b1636141da955dfc218d. Chain 2 (Bitcoin): anchored in block 959002 (2026-07-21T11:47:29Z), 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/QZNWW2329259 — a six-check JSON result.
Who's the girl? (#SS edit) [Future Remix]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7d7fc79e62c6da14b1cf86ea1337c0273544b49cd4eecb48e1c7d6be4d60239a. 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/QMFMG2350377 — a six-check JSON result.
hay o lai va ngam phao hoa cung anh nhe...<3 (lofi by #SS)
Tình Yêu Giống Như Cái Chết Vì Còn Nhớ Em...
Tình yêu giống như cái chết vì.... (hqhuy ft Nguyễn Đình Toàn)
Bông Hoa Đẹp Nhất (Short Version để tặng mẹ)
Đợi Ngày Qua Ngày Mashup (Sivan x 52Hz x #SS)
Lần này thì anh chịu thua em rồi.... (Hoang Green x #SS ver)
Vậy là chẳng thể bên em vì... chungtachigiongtinhyeu (Hoàng Green x QuocKiet x #SS ver)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcd72a7cc4aaecf3f6402b46e1dfb15df40b3e9aac4c713930343ad071a18e0c6. Chain 2 (Bitcoin): anchored in block 958234 (2026-07-16T03:46:09Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZK6M2412318 — a six-check JSON result.
Những Ngày Không Em 2 (feat. Thế Hùng Lương)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc9b655525463fd045c63936ca69d8e0f43bf72a8ac7d0c50a4f0015e8db9a4c6. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/VNA0M1940314 — a six-check JSON result.
Canh Hoa Tan x Mua Roi Tham Lang (Instru)