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 0x2747671e4e0e78a2e09fb19aba6af7af2ffaccc4384f4c63386d1266937d69d2. Chain 2 (Bitcoin): anchored in block 953626 (2026-06-14T11:41:45Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/2dfea340-3d31-4ac2-9054-bd6b60cb726c.json and https://artists.proofprofile.net/proofs/artist/2dfea340-3d31-4ac2-9054-bd6b60cb726c.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 0xde213f37f8cfb84ddc261fbd2a4faa532e2ed06ac039a7789c73b5f867d1d1fe. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/ITM2J2300028.
Lounge Chill Music 2023 - The Best Lounge Music - Chill Music - Soft House - Pop Music - Tropical House - Deep House - Chillout Songs - Chill Vibes - Cocktail Music by Hoop Records
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xde213f37f8cfb84ddc261fbd2a4faa532e2ed06ac039a7789c73b5f867d1d1fe. Chain 2 (Bitcoin): anchored in block 957050 (2026-07-07T14:41:13Z), 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/ITM2J2300028.
Chillout Lounge 2024: The Best Chillout Lounge Music - Chill Music - Soft House - Pop Music - Tropical House - Deep House - Chillout Songs - Chill Vibes - Cocktail Music by Hoop Records
Lounge Music 2024 : The Best Lounge Music - Chill Music - Soft House - Pop Music - Tropical House - Deep House - Chillout Songs - Chill Vibes - Cocktail Music by Hoop Records
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xde213f37f8cfb84ddc261fbd2a4faa532e2ed06ac039a7789c73b5f867d1d1fe. Chain 2 (Bitcoin): anchored in block 957065 (2026-07-07T16:43:21Z), 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/ITM2J2300028.
Coffee Lounge Music 2024 : The Best Coffee Lounge Album - Happy Hour Songs - Lounge Chill Music - Sunset Chill - Bar Music - Lounge Bar - Restaurant Music - Chill Music - Aperitif Music.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xde213f37f8cfb84ddc261fbd2a4faa532e2ed06ac039a7789c73b5f867d1d1fe. Chain 2 (Bitcoin): anchored in block 957025 (2026-07-07T10:59:31Z), 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/ITM2J2300028.