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 0xddc000e50768d9084081c4706b329513344eb0ca18d7d384981cb222f177bbd8. 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/8d5a1c10-4a18-4189-9e13-0adc9e042e23.json and https://artists.proofprofile.net/proofs/artist/8d5a1c10-4a18-4189-9e13-0adc9e042e23.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 0x122d069c0350ba51bc390b46747ff015ac6f458e1b002646a96460ac998e668f. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/IT0312300133.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x35c11e7ddd98e2befd1be2cfd6b639046eec05bc985b9eb21516437af0fcea15. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/BE8LH2200111.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb29246c2f3313b430d72fdf2dfa418c934b055e1fea78d7007ea1808a8a087a1. 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/ITU9F1900086.
New Beginnings - Human Phat Extended Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe6ffc9c79f300bba42ee7f74f6f8d9029645e90218442fceae6ca2b8ff463c1a. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/ITU9F1900087.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xff05a56064d3aa5456bd1f7c557a631690279ecaeca644ccd74666434e69d023. Chain 2 (Bitcoin): anchored in block 960340 (2026-07-31T03:15:04Z), 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/ITU9F1800105.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x35c11e7ddd98e2befd1be2cfd6b639046eec05bc985b9eb21516437af0fcea15. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/BE8LH2200111.
Lounge Covers Of Popular Songs 2023.03 - Chill Out Covers - Relax & Chill Covers
Lounge Covers Of Popular Songs 2023.01 - Chill Out Covers - Relax & Chill Covers
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x35c11e7ddd98e2befd1be2cfd6b639046eec05bc985b9eb21516437af0fcea15. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/BE8LH2200111.
Ten Point Three Records - ADE Essentials 2018
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x77ad68683e9af65b5917c2da727e8df71408e150d8eaef7929b77b722707eb90. 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/ITU9F1800106.
Restaurant Lounge 2023 Vol. 1 Background Music
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x35c11e7ddd98e2befd1be2cfd6b639046eec05bc985b9eb21516437af0fcea15. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/BE8LH2200111.
Bar Lounge 2023 Vol. 1 Background Music (Music for Bars, Cocktail Bars or Coffee Bars)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x35c11e7ddd98e2befd1be2cfd6b639046eec05bc985b9eb21516437af0fcea15. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/BE8LH2200111.
Restaurant Lounge 2023 Vol. 2 Background Music