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 0xaa1c5f5cc451bf5037160c4d2ba2f269a48fd450233e5179c70ad58beaa43de1. 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/77d864e8-7c24-408a-8b23-72e6ad0bc419.json and https://artists.proofprofile.net/proofs/artist/77d864e8-7c24-408a-8b23-72e6ad0bc419.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 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 0x77ea6bb053e80fbe56dbe7343074ea6a5128d948879de9bf27ce2785c2a4a3c5. 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/HKK972206186.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1a39566d0671570986cf6af0bb864d7590a140c6603bc64a938aaaf1eb1cdcdc. 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/HKK972206188.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x73638db6e4b06b70902885411c944405695025d7a6c18577e120823625f0a965. 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/QZNW72221977.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf67deeea1b43f3fdbba3cd57bb7ff9a59515b55f7aed39f4b51fc63a0be774de. Chain 2 (Bitcoin): anchored in block 959065 (2026-07-21T22:00:50Z), 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/VNA0F2319747.
Nếu Lúc Trước Em Đừng Tới (Lofi Version)
Nếu Lúc Trước Em Đừng Tới - Lofi Version
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8ff1bf2b1e0acd631a36791e59767ea06d122eec30b3c334bb5b93846d2f450b. 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/US38Y2402693.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc9a4055f5ebb9de79c5fad17e3e419714282c3f6b577ccab2def4358d756055d. Chain 2 (Bitcoin): anchored in block 958428 (2026-07-17T15:15:14Z), 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/US38Y2402687.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3493de18419790de660b7e2fb97048d616c8c6186f14b3080618c7c6ea711386. 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/US38Y2402694.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe67eccea8f4333d2d7f90ead61c0142e519871ee749c24b5ef2a8b7b85a53db0. 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/ARC572400614.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa79c33eb483b57ead5f4170ae3a475629808ebb2d7a29f89fd734b24dc3f514c. Chain 2 (Bitcoin): anchored in block 958931 (2026-07-20T21:15:01Z), 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/ARC572400612.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe67eccea8f4333d2d7f90ead61c0142e519871ee749c24b5ef2a8b7b85a53db0. 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ARC572400614.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa399491b192e4f507ce25be807eed8d48c65fe52caaa052cdd78615670276f93. 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/ARC572400660.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x19cb5bea568b43caa40349e7b8e7b5976c56ece0e8b13ff0f3947186b0174ea2. Chain 2 (Bitcoin): anchored in block 956422 (2026-07-03T01:01:38Z), 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/US38Y2405786.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xff4be597c04c71c4c6cde8304f36b3988df7c499b04f6de649ef173cd80a0c63. 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/US38Y2420352.
Họ Bỏ Tôi Đi Nữa Rồi - Thành Đạt Ft Pony Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x72b1a0e8a5990c5e028fd9f4b497c512e087ee55514946ff534547f0a9323f7a. 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/VNA0F2502060.
Chẳng Thể Nói Ra (Ani Lofi - Star Online)