{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2011:PBRTLYNFQ64LXKQVWK2C2TAUQT","short_pith_number":"pith:PBRTLYNF","canonical_record":{"source":{"id":"1104.0053","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mtrl-sci","submitted_at":"2011-04-01T00:42:00Z","cross_cats_sorted":[],"title_canon_sha256":"818f8f2ace0cd197615ade41441f0e870747441f250037ab2b772969f8df2eed","abstract_canon_sha256":"1dd0dd197df7c16f2fb17265dec38a138621327ecba2c7b83b4bccfb602db017"},"schema_version":"1.0"},"canonical_sha256":"786335e1a587b8bbaa15b2b42d4c1484debc652a848586b46929eaa30660844d","source":{"kind":"arxiv","id":"1104.0053","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1104.0053","created_at":"2026-05-18T04:09:54Z"},{"alias_kind":"arxiv_version","alias_value":"1104.0053v1","created_at":"2026-05-18T04:09:54Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1104.0053","created_at":"2026-05-18T04:09:54Z"},{"alias_kind":"pith_short_12","alias_value":"PBRTLYNFQ64L","created_at":"2026-05-18T12:26:39Z"},{"alias_kind":"pith_short_16","alias_value":"PBRTLYNFQ64LXKQV","created_at":"2026-05-18T12:26:39Z"},{"alias_kind":"pith_short_8","alias_value":"PBRTLYNF","created_at":"2026-05-18T12:26:39Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2011:PBRTLYNFQ64LXKQVWK2C2TAUQT","target":"record","payload":{"canonical_record":{"source":{"id":"1104.0053","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mtrl-sci","submitted_at":"2011-04-01T00:42:00Z","cross_cats_sorted":[],"title_canon_sha256":"818f8f2ace0cd197615ade41441f0e870747441f250037ab2b772969f8df2eed","abstract_canon_sha256":"1dd0dd197df7c16f2fb17265dec38a138621327ecba2c7b83b4bccfb602db017"},"schema_version":"1.0"},"canonical_sha256":"786335e1a587b8bbaa15b2b42d4c1484debc652a848586b46929eaa30660844d","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T04:09:54.594159Z","signature_b64":"Dp1rrYmZnxGfcctgLATZ32msIj3NEYifgaAnbyN+GEpeZIOtwbLmfIhjLnnwGHzGssQt9t7PDnxxVX6/RYtqBw==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"786335e1a587b8bbaa15b2b42d4c1484debc652a848586b46929eaa30660844d","last_reissued_at":"2026-05-18T04:09:54.593531Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T04:09:54.593531Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1104.0053","source_version":1,"attestation_state":"computed"},"signer":{"signer_id":"pith.science","signer_type":"pith_registry","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"created_at":"2026-05-18T04:09:54Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"szE09vCQyJtKgNSlZ37uuT8IAR1NTN8Oteq88Aq+FD3nyd4rU5okzVCKSUR5Se2kGvLXEmjLzETAJpduiFyrAQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-01T02:57:08.518589Z"},"content_sha256":"a54a9f1085e5047e001110bc6e86e5dab98e397a2f1b44899803998964026243","schema_version":"1.0","event_id":"sha256:a54a9f1085e5047e001110bc6e86e5dab98e397a2f1b44899803998964026243"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2011:PBRTLYNFQ64LXKQVWK2C2TAUQT","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Efficient Photon Upconverters with Ionic Liquids","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"cond-mat.mtrl-sci","authors_text":"Yoichi Murakami","submitted_at":"2011-04-01T00:42:00Z","abstract_excerpt":"This paper presents the development and characterization of photon upconverters fabricated with ionic liquids (ILs), which are novel fluids that are recently drawing attention due to their unique properties, such as negligible vapor pressures and high thermal stabilities. The upconverters in this study are based on triplet-triplet annihilation (TTA) between excited polycyclic aromatic molecules, and TTA requires a fluidic media to allow for the molecules to collide with each other for energy transfer. This process, TTA-based photon upconversion (TTA-UC), was therefore mainly accomplished with "},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1104.0053","kind":"arxiv","version":1},"verdict":{"id":null,"model_set":{},"created_at":null,"strongest_claim":"","one_line_summary":"","pipeline_version":null,"weakest_assumption":"","pith_extraction_headline":""},"references":{"count":0,"sample":[],"resolved_work":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57","internal_anchors":0},"formal_canon":{"evidence_count":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"author_claims":{"count":0,"strong_count":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"builder_version":"pith-number-builder-2026-05-17-v1"},"verdict_id":null},"signer":{"signer_id":"pith.science","signer_type":"pith_registry","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"created_at":"2026-05-18T04:09:54Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"8hGAZVwPpGLuIiYpysZwmv4NYXACvqdURWrDQtIrNha6jv/Nl58Fz1OMmC+VsNQBN8mgzOG+wAIU+wQLiND7Bg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-01T02:57:08.518946Z"},"content_sha256":"0794d87b6a75c6588742be826cd44d22782e6ecc07ae100cbf8c29bab0ac52c5","schema_version":"1.0","event_id":"sha256:0794d87b6a75c6588742be826cd44d22782e6ecc07ae100cbf8c29bab0ac52c5"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/PBRTLYNFQ64LXKQVWK2C2TAUQT/bundle.json","state_url":"https://pith.science/pith/PBRTLYNFQ64LXKQVWK2C2TAUQT/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/PBRTLYNFQ64LXKQVWK2C2TAUQT/bundle.json","status":"primary"}],"public_keys":[{"key_id":"pith-v1-2026-05","algorithm":"ed25519","format":"raw","public_key_b64":"stVStoiQhXFxp4s2pdzPNoqVNBMojDU/fJ2db5S3CbM=","public_key_hex":"b2d552b68890857171a78b36a5dccf368a953413288c353f7c9d9d6f94b709b3","fingerprint_sha256_b32_first128bits":"RVFV5Z2OI2J3ZUO7ERDEBCYNKS","fingerprint_sha256_hex":"8d4b5ee74e4693bcd1df2446408b0d54","rotates_at":null,"url":"https://pith.science/pith-signing-key.json","notes":"Pith uses this Ed25519 key to sign canonical record SHA-256 digests. Verify with: ed25519_verify(public_key, message=canonical_sha256_bytes, signature=base64decode(signature_b64))."}],"merge_version":"pith-open-graph-merge-v1","built_at":"2026-06-01T02:57:08Z","links":{"resolver":"https://pith.science/pith/PBRTLYNFQ64LXKQVWK2C2TAUQT","bundle":"https://pith.science/pith/PBRTLYNFQ64LXKQVWK2C2TAUQT/bundle.json","state":"https://pith.science/pith/PBRTLYNFQ64LXKQVWK2C2TAUQT/state.json","well_known_bundle":"https://pith.science/.well-known/pith/PBRTLYNFQ64LXKQVWK2C2TAUQT/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2011:PBRTLYNFQ64LXKQVWK2C2TAUQT","merge_version":"pith-open-graph-merge-v1","event_count":2,"valid_event_count":2,"invalid_event_count":0,"equivocation_count":0,"current":{"canonical_record":{"metadata":{"abstract_canon_sha256":"1dd0dd197df7c16f2fb17265dec38a138621327ecba2c7b83b4bccfb602db017","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mtrl-sci","submitted_at":"2011-04-01T00:42:00Z","title_canon_sha256":"818f8f2ace0cd197615ade41441f0e870747441f250037ab2b772969f8df2eed"},"schema_version":"1.0","source":{"id":"1104.0053","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1104.0053","created_at":"2026-05-18T04:09:54Z"},{"alias_kind":"arxiv_version","alias_value":"1104.0053v1","created_at":"2026-05-18T04:09:54Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1104.0053","created_at":"2026-05-18T04:09:54Z"},{"alias_kind":"pith_short_12","alias_value":"PBRTLYNFQ64L","created_at":"2026-05-18T12:26:39Z"},{"alias_kind":"pith_short_16","alias_value":"PBRTLYNFQ64LXKQV","created_at":"2026-05-18T12:26:39Z"},{"alias_kind":"pith_short_8","alias_value":"PBRTLYNF","created_at":"2026-05-18T12:26:39Z"}],"graph_snapshots":[{"event_id":"sha256:0794d87b6a75c6588742be826cd44d22782e6ecc07ae100cbf8c29bab0ac52c5","target":"graph","created_at":"2026-05-18T04:09:54Z","signer":{"key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signer_id":"pith.science","signer_type":"pith_registry"},"payload":{"graph_snapshot":{"author_claims":{"count":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57","strong_count":0},"builder_version":"pith-number-builder-2026-05-17-v1","claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"formal_canon":{"evidence_count":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"paper":{"abstract_excerpt":"This paper presents the development and characterization of photon upconverters fabricated with ionic liquids (ILs), which are novel fluids that are recently drawing attention due to their unique properties, such as negligible vapor pressures and high thermal stabilities. The upconverters in this study are based on triplet-triplet annihilation (TTA) between excited polycyclic aromatic molecules, and TTA requires a fluidic media to allow for the molecules to collide with each other for energy transfer. This process, TTA-based photon upconversion (TTA-UC), was therefore mainly accomplished with ","authors_text":"Yoichi Murakami","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mtrl-sci","submitted_at":"2011-04-01T00:42:00Z","title":"Efficient Photon Upconverters with Ionic Liquids"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1104.0053","kind":"arxiv","version":1},"verdict":{"created_at":null,"id":null,"model_set":{},"one_line_summary":"","pipeline_version":null,"pith_extraction_headline":"","strongest_claim":"","weakest_assumption":""}},"verdict_id":null}}],"author_attestations":[],"timestamp_anchors":[],"storage_attestations":[],"citation_signatures":[],"replication_records":[],"corrections":[],"mirror_hints":[],"record_created":{"event_id":"sha256:a54a9f1085e5047e001110bc6e86e5dab98e397a2f1b44899803998964026243","target":"record","created_at":"2026-05-18T04:09:54Z","signer":{"key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signer_id":"pith.science","signer_type":"pith_registry"},"payload":{"attestation_state":"computed","canonical_record":{"metadata":{"abstract_canon_sha256":"1dd0dd197df7c16f2fb17265dec38a138621327ecba2c7b83b4bccfb602db017","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mtrl-sci","submitted_at":"2011-04-01T00:42:00Z","title_canon_sha256":"818f8f2ace0cd197615ade41441f0e870747441f250037ab2b772969f8df2eed"},"schema_version":"1.0","source":{"id":"1104.0053","kind":"arxiv","version":1}},"canonical_sha256":"786335e1a587b8bbaa15b2b42d4c1484debc652a848586b46929eaa30660844d","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"786335e1a587b8bbaa15b2b42d4c1484debc652a848586b46929eaa30660844d","first_computed_at":"2026-05-18T04:09:54.593531Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T04:09:54.593531Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"Dp1rrYmZnxGfcctgLATZ32msIj3NEYifgaAnbyN+GEpeZIOtwbLmfIhjLnnwGHzGssQt9t7PDnxxVX6/RYtqBw==","signature_status":"signed_v1","signed_at":"2026-05-18T04:09:54.594159Z","signed_message":"canonical_sha256_bytes"},"source_id":"1104.0053","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:a54a9f1085e5047e001110bc6e86e5dab98e397a2f1b44899803998964026243","sha256:0794d87b6a75c6588742be826cd44d22782e6ecc07ae100cbf8c29bab0ac52c5"],"state_sha256":"3b9b8c7690aaf6f2c1d2afe77b2baaec6c925a8a7320f88017c65c86b16cbb69"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"+NPJfg60/Iywc+rvcQun4zt328VKAA82qMqHn1kSuo7TfBWL138Cn2dvTW9QN4lt8HYkuUJWsUW9zNdX5COTCQ==","signed_message":"bundle_sha256_bytes","signed_at":"2026-06-01T02:57:08.521460Z","bundle_sha256":"b0257f9038c711b63b829ce1a121158c6e07c04961c38f89975be0bbe449fbad"}}