The Last Dinner Party, originally the Dinner Party, are an English rock band from London, formed in 2021. The band consists of Abigail Morris (vocals), Lizzie Mayland (vocals, guitar), Emily Roberts
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 0xb2f42899c8a4e52aa1fcd7349fb0903dae46664e497c172c476321701d646521. 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/ff80fa6a-e9b9-41b9-a20d-e0c6a4166cb7.json and https://artists.proofprofile.net/proofs/artist/ff80fa6a-e9b9-41b9-a20d-e0c6a4166cb7.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 0x6254091f48cbf5f3763fa34b1ff5a0980146dd00a2c7d779f7e63350b7fc45e2. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/GBUM72303257.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2f2d136faf9269350cb83ef211c16b8659ff19a75546c065a7225f5feec49f9d. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/GBUM72309267.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2997b646e9ac0fa22affcee6d5d55ed91501738e91ffb5e8ccfdd2b265d0c0db. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/GBUM72309269.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x759af251938dea6fb559fa648df7f2807bc0b4101b73dfbe27e9f0161a13754a. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/GBUM72309272.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc94b1a2b0c8da5d626296a7111ed06b07e8736f1d6f9fa3ef032c6a9b4bd6051. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/GBUM72309268.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa278676b2e1efe955be37454dcbed7422f1babffa680487c2bd58f4ee1969152. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/GBUM72309270.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x03dca34e21c30f3bb073bfff3244621b0deafb60bcb5f5dab5f392f1a1cce9f6. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/GBUM72309279.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x85b92bad30863bf16cae94b8813bd6e00dd0e07669fde4550d53a95975f72e77. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/GBUM72309271.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeb23fbf464ce6262e3bd899469db7227fbe9d39a6c6eb9435fa499606e47f4e6. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/GBUM72402477.
Nothing Matters (Live from Gretchen, Berlin)
Nothing Matters - Live from Gretchen, Berlin
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xed182cce8b4e367797e9cf760acad7d0a902acf0b5ed234e72ab2eb8fb9da40c. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/GBUM72402086.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd0f80412964549a561e10939e06921d49d8211ab3dd6d980fc2db3219db684b4. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/GBUM72400806.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd0f80412964549a561e10939e06921d49d8211ab3dd6d980fc2db3219db684b4. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/GBUM72400806.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7d90883c75bae1b914eceaf979407362640355691c6cb32e627fb41b98a8c506. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/GBUM72309278.
pov: you're the hot ex by The Circle Sessions
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7d90883c75bae1b914eceaf979407362640355691c6cb32e627fb41b98a8c506. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/GBUM72309278.