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 0xf3242cfdb56035fbdd108ea1d3aa1d0a445b5a8dd8796e81275e72285ac3eaa1. Chain 2 (Bitcoin): anchored in block 953803 (2026-06-15T15:41:00Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/e6612df3-2628-4ed0-872c-5d47daaa643c.json and https://artists.proofprofile.net/proofs/artist/e6612df3-2628-4ed0-872c-5d47daaa643c.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 0x8ada02ba79140a43db0df1268cc4a547b5854899be9c6554a954a684c6d92081. 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/FRX872289783.
Tình Sầu Thiên Thu Muôn Lối (TNguyen Remix)
Tình Sầu Thiên Thu Muôn Lối - TNguyen Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xca4074cbef25d0ebd3c88553a0ccedd1e7f202503baf6f0ab93f4955a25f5ba9. Chain 2 (Bitcoin): anchored in block 958197 (2026-07-15T23:28:33Z), 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/DGA062289661.
Một Thời Nhanh Như Một Ngày (WinK6 Lofi)
Tình Sầu Thiên Thu Muôn Lối (Trnguyn Remix)
Anh Chẳng Quan Tâm Em Nữa Rồi (Huann Lofi)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x49773cd03413e0721064ae16fe5050f4429b7e286fcf0b4971380dbec736b1a9. Chain 2 (Bitcoin): anchored in block 958388 (2026-07-17T09:14:21Z), 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/VNA2E2310281.