1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. Open OTSProofURL → extract Bitcoin block number → must equal OTSBitcoinBlock 3. GET OTSBitcoinBlockVerifyURL → block must exist at that height 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 0x5a0d1e7631497a9fdb5af4ee1369c42adef6d1b67b407fae033bf594bc5e3e3e. 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/d68e7903-7bcf-4e72-bc5d-4e5f6d7bc673.json and https://artists.proofprofile.net/proofs/artist/d68e7903-7bcf-4e72-bc5d-4e5f6d7bc673.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Khúc Vương Tình Remix - Từ Ngày Gặp Em Con Tim Ngân Nga Khúc Vương Tình Ca Remix
Từ Ngày Gặp Em Con Tim Ngân Nga Khúc Vương Tình Ca - Khúc Vương Tình (MUS Remix)
Trời Cao Ơi Sao Nỡ Đành Chia Mối Duyên Hai Đường Remix - Thanh Mai Trúc Mã Remix
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 → block OTSBitcoinBlock must exist at that height 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 0xe53a6558dd14eb86a82216be23252bceb5c48d8abc7574e4f489d8bd306eb435. Chain 2 (Bitcoin): anchored in block 957892 (2026-07-13T18:21:16Z), 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/QMFME2352809.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5e02aa99852303952d7ea69690bc8fa9a5bcc25c3234f9c9cca515332b748136. 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/QMFME2387164.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb1c56401491edc03f32c04bba0e9a6a90054c7e994662e58af7184aaec69c8e2. Chain 2 (Bitcoin): anchored in block 956790 (2026-07-05T12:31:54Z), 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/QM6N22408744.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8f6b68b0b07794ae82e878e8e15f55f11db43f0fb6b865c8f46f56e6195e38a9. Chain 2 (Bitcoin): anchored in block 957788 (2026-07-13T02:37:37Z), 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/VNA2J2500001.
Sau Cơn Mưa Nào Có Cầu Vòng (Huy PT Remix)
Sau Cơn Mưa Nào Có Cầu Vòng - Huy PT Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb41ccd40f0c19864cd3a4d777ff27327995e3897a2e551b924cf03b36d69152c. 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/VNA2J2502620.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa1d536e80d23c7abe8f30f2604cf7980c5e0a24f716ea99c10f736d1d3791ebe. Chain 2 (Bitcoin): anchored in block 957785 (2026-07-13T01:55:31Z), 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/QMFME2543417.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa84c2f9fb25a2afce490a8244e7533ab3b55115f4b1222466e22f6e0656f3caf. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/QZYHM2423453.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbb6541a8edc1f982728d58def10c37b909c130ed15107a6dcbaa5166f5221421. 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/VNA0F2406743.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe4d7eae15752fa0423c31d447b747444e807eb918df649ac6a4fe58b757d9da2. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/VNA1M2400433.