Sugarplum Fairy is a pop-rock band from Borlänge, Sweden. The members took the name from a version of the Beatles' song "A Day in the Life" where John Lennon counts the song in by saying "sugar-plum-f
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 0x87833bbb46f7ffacd1c735f9c6737e601a5aa873819fcde68f444fd9947a09d9. Chain 2 (Bitcoin): anchored in block 953408 (2026-06-12T19:28:13Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/ac51e070-3676-4663-9877-ca7da24cf582.json and https://artists.proofprofile.net/proofs/artist/ac51e070-3676-4663-9877-ca7da24cf582.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 0x552753ebc419d8faa7cdc0df6d4a826c9ccd9f4ac2e4dce547d9a6ec137b455e. Chain 2 (Bitcoin): anchored in block 956656 (2026-07-04T14:03:39Z), 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/DEN120504043.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6a22bb0e8a08c1938d4b1829ef163c3dc432357ebc04af2ae250544402d264a3. Chain 2 (Bitcoin): anchored in block 958955 (2026-07-21T03:03:40Z), 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/SEBGA0404100.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x98f5e95250b7f51480d5cedf801da808e6c07974d4319765969174936ba26090. Chain 2 (Bitcoin): anchored in block 958455 (2026-07-17T21:28:36Z), 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/DEUM70602659.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xefa233f38a6ece522af0dc310f035465ef7d5d5e42c59138be73bf11de2416d6. Chain 2 (Bitcoin): anchored in block 958142 (2026-07-15T12:59:27Z), 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/DEUM70602672.
Never Thought I'd Say That It's Alright (Exclusive Version)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb7b6e85dda938307029a625209ff0473895986dfdbf4e7e4b64be81f581deeb0. Chain 2 (Bitcoin): anchored in block 958224 (2026-07-16T02:28:43Z), 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/DEUM70804791.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x841046c29239edef4c348aba584972fadf902048114c92e1370b0c4de6353c5a. Chain 2 (Bitcoin): anchored in block 956405 (2026-07-02T22:22:35Z), 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/DEUM70804795.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4cfbb2481ff78e5214d69dfb90647a1f10a79328a31158b244abd0ab7cff66b7. 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/DEUM70805522.