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 0xe47a42631df96f22c2cb8f39fb074cb4c2255a1dc44ed4a08e8234f5ccfb61da. 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/11db7f7a-5321-4569-9272-a6ef0f2ca52f.json and https://artists.proofprofile.net/proofs/artist/11db7f7a-5321-4569-9272-a6ef0f2ca52f.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 0x95c17841ca87f0c64105787d06b8dec2a884288c65bb23ab2eea5977f7981ff5. Chain 2 (Bitcoin): anchored in block 957919 (2026-07-13T23:58:45Z), 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/VNMOO1942601.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x62ebace8b99e850a63f86b6a118a2ce84f5864825b24e05d12f0ea0bb04a5ed4. 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QMDA72219652.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc2fefc2ae9fdf5db3f54136aa898f665ae56a12528ab380b77c9fa254de54af0. 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/VNMOO1945501.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf0bc02e10af97dc9de185cf884141e64fd6430d965259d43c37c5ec7c221893f. Chain 2 (Bitcoin): anchored in block 958238 (2026-07-16T07:10:07Z), 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QMDA62301757.
Không Thể Yêu Ai Được Nữa (Piano Version)
Tuyển Tập Những Bài Hát Hay Nhất Của Mr Siro
Em Gai Mua Piano Version - Huong Tram ft Mr Siro (Original)
Em Gai Mua Piano Version - Huong Tram ft Mr.Siro (Original)
Lang Nghe Nuoc Mat - Piano Version (Original)
Nguoi Con Gai Anh Khong The Quen (Original)
Chi Co Mot Nguoi De Yeu Tren The Gian (Original)
Vo Hinh Trong Tim Em - Piano Version (Original)
Duoi Nhung Con Mua - DJ Bjn - Remix (Original)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xde4f89971b0525e9f88b81c784f938038b5af25831e81c44781cdfac15b30cb6. Chain 2 (Bitcoin): anchored in block 956639 (2026-07-04T11:19:20Z), 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/QMDA72204956.
Không Thể Cùng Nhau Suốt Kiếp (Piano Version)
Mashup Khóc Cùng Em - Anh Chỉ Là Người Thay Thế
Người Con Gái Anh Không Thể Quên (Piano Version)
Người Con Gái Anh Không Thể Quên - Piano version
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x68d7b8e26303880dd886b02058b74ef3f24f13ca13a97e415c17e0678d6e8340. 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/VNR011129255.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x27213d75b1983796f69c16071e42ab1e3195b5d59bad23804786b35d53a240f1. Chain 2 (Bitcoin): anchored in block 956476 (2026-07-03T09:04:44Z), 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/QMFME2346232.
Chẳng Ai Đến Thế Giới Này Để Cô Đơn - Beat
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2054ec876048131e8b2bcf3b986749f4e3e4e0b25d88a4298e277592a5169e4c. 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/QMFME2354924.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x270f43a03f4627a1e47f5d9a515f4db79b95a0c04778696d7a67f2fae0676eaf. 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/QMFME2430066.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x010d2bf33fc5abb13928cfe73671f108893fb0de74016021de5be5037e0ef4b0. 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/FR59R2049670.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7327acad0677c534e7d337e2c7599252100064bc4f3a592c5f12b94e2f66b9ec. Chain 2 (Bitcoin): anchored in block 959144 (2026-07-22T17:27:29Z), 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/VNR011039749.
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 0xa4c8fe4804370accf187734a6b13a85a951e5aa46719fa5e86a5ec11ede75116. Chain 2 (Bitcoin): anchored in block 959155 (2026-07-22T19:22:46Z), 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/VNR011039751.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2145304163da24c0a7f0dcd83164a7965360dd4ef3b30e7816b0f422f537198c. Chain 2 (Bitcoin): anchored in block 960294 (2026-07-30T18:46:00Z), 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/VNR011039752.