Little Joy is a rock supergroup formed in 2007 by Los Hermanos singer-songwriter Rodrigo Amarante, The Strokes drummer Fabrizio Moretti, and Binki Shapiro. They released Little Joy, their only album,
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 0xc1d48fcbf38d4ad28776d95c3e0aa1e0a2bd013fe1c35b48f84f7f8ad5b29c6c. 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/8276e9a7-9c34-44e6-9de9-50d0d1b865d5.json and https://artists.proofprofile.net/proofs/artist/8276e9a7-9c34-44e6-9de9-50d0d1b865d5.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 0xd4f2e8d0455433749d359482cfd78a870949849c890f9ba0315d8be55a908004. Chain 2 (Bitcoin): anchored in block 957608 (2026-07-11T21:00:50Z), 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/GBCVZ0802479.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x39ec39dd5904af92b6144667fdeab14b19f6db9f13d8036db605db8ad0293599. Chain 2 (Bitcoin): anchored in block 958157 (2026-07-15T15:02:37Z), 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/GBCVZ0802456.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdca3effbb5bc74ba2c892edba380e85ae63875b3a290bf017eac64c6e2448219. Chain 2 (Bitcoin): anchored in block 958798 (2026-07-20T02:05:53Z), 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/GBCVZ0802459.