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 0xb27b8fda0ee1009804dc9550c3cdc5c8a53d912a5733379932c43c9e1e648c8f. Chain 2 (Bitcoin): anchored in block 953791 (2026-06-15T13:40:30Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/e005ec47-dd5a-4c69-867e-85bdbe96ef16.json and https://artists.proofprofile.net/proofs/artist/e005ec47-dd5a-4c69-867e-85bdbe96ef16.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Dansk Rap i 1950 covers, Pt. 1 (1950'erne doo wop version)
Hvor Fuck Er Min Drink - 1950'erne doo wop version
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 0x8368e3218b1b9a264ee9cfb0cb67c45503ba3255053bedaee46fa40181e67910. Chain 2 (Bitcoin): anchored in block 958783 (2026-07-19T21:20:45Z), 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/QZNWY2462954.
Dansk Rap i 1950 covers, Pt. 2 (1950'erne doo wop version)
Stein Bagger (1950'erne doo wop version)
Blondiner & Brunetter 2 (1950’erne jazz band version)
Hverdagsting (1950’erne doo wop version)
Sprite & Vodka (1950’erne doo wop version)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8af318a7ad5734618b787bd50c735470e2d2e9f9ca9c8bbdcffe4509a54d979b. Chain 2 (Bitcoin): anchored in block 959031 (2026-07-21T16:15:11Z), 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/QT3EY2402591.
Hvad Skal Der Ske (1950’erne doo wop version)
Skejsen i 1980'er (1980’erne Funk version)
Mask På & Poker Face (Opera Orkester Version)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x27b49ef089ad0fb6bd7f94e5c4dcf9b7050e9ab8fec2708c514c983d13905cb9. Chain 2 (Bitcoin): anchored in block 958319 (2026-07-16T20:12:32Z), 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/QZFZ42536979.
Stor Mand & Mucki Bar & Dark Room (Opera Orkester Version)