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 0x91108de82e382feee77d0d577c6b82a4867160cd8826ec6a4001dd1397fc35d9. Chain 2 (Bitcoin): anchored in block 953699 (2026-06-14T22:00:24Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/74717221-5bcd-43be-95f6-f7ba8ab703fc.json and https://artists.proofprofile.net/proofs/artist/74717221-5bcd-43be-95f6-f7ba8ab703fc.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Heroes Tonight (Long Milano ft. HTH Remix) [Full Version]
Cánh Đồng Yêu Thương (Foxy ft. TVS Remix) [Short Version]
Nhường Hạnh Phúc Cho Anh (Quaniam Remix) [Short Version]
Không Lý Do (TVS Remix) [Short Version 1]
Đừng Lo Nhé Có Anh Đây x Ải Hồng Nhan (Instrumental Version)
Yêu Thương Chẳng Là Mãi Mãi (Toann 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 → 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 0xab8245400f9f8062363e22e37090bff85dc85742281ac3f62bebe02d2bcd2197. 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/QT4ED2500046.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfe080719ddca534a28d769dca4fc44839863b67ece6d880f9d8deab7bf929337. Chain 2 (Bitcoin): anchored in block 956738 (2026-07-05T04:47:21Z), 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/ARC572503085.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5943b3cc4e497c8ffa7c78aeb7d4a4ba6098c3dd231da1d3202afefbc28f40ac. Chain 2 (Bitcoin): anchored in block 956656 (2026-07-04T14:03:39Z), 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/QM7282567222.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x08cb2361516da8b589e4e7bf042d9b0357ee470879a402952d3e4ce3bf392314. Chain 2 (Bitcoin): anchored in block 958436 (2026-07-17T16:42:22Z), 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/QM7282598502.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2c9fe23feb4261efc765c6d7e8dd28d6cc40894134af8cc61a1912c2aaa63bae. 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/QZNJZ2554332.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe85818ad9918607f3d6a29c2b15a29aead105643a9884bf4f8115de0585335c6. 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/QZTPX2556059.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7467ad406596e4b1c0234bb22601213bbf3483620476ae3eebad2d9e1b9fa2ff. 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/QMFMF2535615.