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 0x5669a73e447b6f1acb257c26464cf2fb4e5de97503c241c5d97b48f82d798052. Chain 2 (Bitcoin): anchored in block 953423 (2026-06-12T21:20:00Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/8313b0f5-68e2-41fb-b1ce-45dd332da329.json and https://artists.proofprofile.net/proofs/artist/8313b0f5-68e2-41fb-b1ce-45dd332da329.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 0xb92123fba9ef829fe286984ef29cdafc625f7d81bbedf0280be2d3c448d4bab5. Chain 2 (Bitcoin): anchored in block 957702 (2026-07-12T12:25:41Z), 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/DED832500021.
DREAMER - Made in Renishaw < 2010 - OG Our Legacy
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x828957e1df85a16654fb742e31a186e9057f4b5abb4b357b8fc47c2f3f29cf17. Chain 2 (Bitcoin): anchored in block 957699 (2026-07-12T11:51:06Z), 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/DED832500024.
WHO BEATS YOUR HEART? - OG Silence Speaks Demo
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb2bdcce66b72d3b94d33f3a61451b9365bfab21dd2fb8b578dc212c95837422b. Chain 2 (Bitcoin): anchored in block 958300 (2026-07-16T16:14:30Z), 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/DED832500026.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0f0905be71bdbbc738cc5aaeaf2b7bcabfdfc7bcf181a34517167f43c5b13db7. Chain 2 (Bitcoin): anchored in block 956500 (2026-07-03T13:55:21Z), 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/DED832500083.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb4fe7cb6b27f4526ae91217f9bc8a4ab7da5554da6d1fb03fcd579be494cfec7. Chain 2 (Bitcoin): anchored in block 958300 (2026-07-16T16:14:30Z), 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/DED832500084.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5d6eaad15b8843f343e51bd3724aa3d112792f75d4efbbb43ab88c691b5e456a. 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/DED832500085.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe601cb71f2e4cc9ae635823893f39ca9dcac4270736f48e54689f3b6ff1363ac. Chain 2 (Bitcoin): anchored in block 958256 (2026-07-16T07:22:18Z), 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/DED832500086.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x79678a44f20343d0c03aa709b98699e1c65fc329040527977f91123b2e533973. Chain 2 (Bitcoin): anchored in block 956639 (2026-07-04T11:19:20Z), 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/DED832500087.