alt=View of a woman from behind|thumb|William Merritt Chase, Study of Flesh Color and Gold, 1888, National Gallery of Art thumb|Maurice Quentin de La Tour, a bravura pastel portrait of Louis XV, 1748
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 0x2504a4afb137467ec633c67a8a8c75504d43edd81352ef0a415893b7e6e27d1d. 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/fb895984-df8c-448e-bc86-b52134b32c35.json and https://artists.proofprofile.net/proofs/artist/fb895984-df8c-448e-bc86-b52134b32c35.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 0x47d92e8adac0a4906640a0227570c3be3128864bf753935e3a281317f9ad67a9. Chain 2 (Bitcoin): anchored in block 956420 (2026-07-03T00:42:11Z), 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/QZHN72139258.
Deeper Than Holy (Big Beat) [Vega Rally Remix]
Deeper Than Holy (Big Beat) - Vega Rally Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa69362e76100f4a1711dc48d0928f1defc0cf371e9df1031c71b701785cc9420. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), 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/QZFZ72269735.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x835bf6e5816077d4b40963575642564419140beeea35b2e0795772c41137bd68. Chain 2 (Bitcoin): anchored in block 958316 (2026-07-16T19:42:29Z), 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/QZHN42289580.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5318b00be57fe85d39fc3d672f0ff469d0c7d7ab49141ddbc4bbd0c5853c7bca. Chain 2 (Bitcoin): anchored in block 959011 (2026-07-21T13:26:15Z), 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/QZK6J2234400.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf52c621d5b7a570b518875169e58843be6a7fd41684d5a4a5e8419251146d297. Chain 2 (Bitcoin): anchored in block 958444 (2026-07-17T19:12:23Z), 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/USA2B2204441.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2229a1ddfcd2e440c042673d303e4b0a129d3436f1f951c6854895f5bdaa83a6. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/USA2B2318450.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0050f6ea09da4e9a11bc03bc6d43e12ace35cf9f78f581d8a843510d22b974ca. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), 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/USA2B2400387.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeeecdf0c5b22ba7636a16021ef227a79aad947e9f733b03eafac9733e3f459cc. Chain 2 (Bitcoin): anchored in block 957876 (2026-07-13T16:00:32Z), 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/USA2B2402794.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x07ac0411b9e71ab26571265f9b536f5e1c968b0d9d3d3088cd7411d1b7a2c8ae. Chain 2 (Bitcoin): anchored in block 958631 (2026-07-19T00:50:09Z), 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/USA2B2404142.