Out Hud was an American electronic band formed in 1996 in the Bay Area of California and later based in New York City. The band consisted of guitarist Nic Offer, bassist Tyler Pope, cellist Molly Schn
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 0x74ccd29f0b41c1615297da0a48e2fc16cc45830399ebbde11ad691461fd31c25. Chain 2 (Bitcoin): anchored in block 953842 (2026-06-15T22:22:30Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/efaf3bf9-359b-49cd-b99d-c0bec236ed9a.json and https://artists.proofprofile.net/proofs/artist/efaf3bf9-359b-49cd-b99d-c0bec236ed9a.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 0xb26f15923e51299bdb317bd2ab3d4579f593b239ddd25997bec7c6d26b993034. Chain 2 (Bitcoin): anchored in block 958157 (2026-07-15T15:57:22Z), 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/USI4R0500497.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x78c4cc5e2ef65456a52ba711c6bad40cbeef4bb2621de11da80575cc21084088. Chain 2 (Bitcoin): anchored in block 958447 (2026-07-17T19:47:19Z), 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/USI4R0500498.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0874448c4ea5c9ea2f53483287c82548ed53748c206f71dccb226bcc7f588482. Chain 2 (Bitcoin): anchored in block 957703 (2026-07-12T12:26:40Z), 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/USI4R0500500.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x90604708b16cc92517fde44cb3ea70ad98205c28be5cdae112b7f1572b0b0e61. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-20T14:00:19Z), 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/USI4R0500504.