{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2017:BTTRMVQG6CL5OEUYEGJMQJH2YD","short_pith_number":"pith:BTTRMVQG","canonical_record":{"source":{"id":"1702.01544","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.optics","submitted_at":"2017-02-06T09:57:31Z","cross_cats_sorted":[],"title_canon_sha256":"e5f4f24e0a894963fc0c91493febbdeab525f7cccab5386f0fd11468e022242e","abstract_canon_sha256":"28a3d77c3bb60ebda313a648299d9870786011cd234aa8fd99e0870db7b76f0c"},"schema_version":"1.0"},"canonical_sha256":"0ce7165606f097d712982192c824fac0f49f2d2191a7b7eb3c4895f3b1c23cca","source":{"kind":"arxiv","id":"1702.01544","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1702.01544","created_at":"2026-05-18T00:51:23Z"},{"alias_kind":"arxiv_version","alias_value":"1702.01544v1","created_at":"2026-05-18T00:51:23Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1702.01544","created_at":"2026-05-18T00:51:23Z"},{"alias_kind":"pith_short_12","alias_value":"BTTRMVQG6CL5","created_at":"2026-05-18T12:31:08Z"},{"alias_kind":"pith_short_16","alias_value":"BTTRMVQG6CL5OEUY","created_at":"2026-05-18T12:31:08Z"},{"alias_kind":"pith_short_8","alias_value":"BTTRMVQG","created_at":"2026-05-18T12:31:08Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2017:BTTRMVQG6CL5OEUYEGJMQJH2YD","target":"record","payload":{"canonical_record":{"source":{"id":"1702.01544","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.optics","submitted_at":"2017-02-06T09:57:31Z","cross_cats_sorted":[],"title_canon_sha256":"e5f4f24e0a894963fc0c91493febbdeab525f7cccab5386f0fd11468e022242e","abstract_canon_sha256":"28a3d77c3bb60ebda313a648299d9870786011cd234aa8fd99e0870db7b76f0c"},"schema_version":"1.0"},"canonical_sha256":"0ce7165606f097d712982192c824fac0f49f2d2191a7b7eb3c4895f3b1c23cca","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T00:51:23.047032Z","signature_b64":"gnO2QRQl6w7ioL1vxsc4WpC5Y4JZ8uywoq34kBbHQOycQ7lk49ga7P+/vM5MV0ZxVfi0sC3wRlEA7i0cbzcHCQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"0ce7165606f097d712982192c824fac0f49f2d2191a7b7eb3c4895f3b1c23cca","last_reissued_at":"2026-05-18T00:51:23.046418Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T00:51:23.046418Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1702.01544","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":"2026-05-18T00:51:23Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"bxEKDI3UK4Rtnci1oVRCxW4Kvc/lDdlh9H89TApjPj7iy4MfyDLJ/eY0d0oh4Lc84lDKiFZfQHB4lVMudLhxCA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-07-02T18:26:48.539126Z"},"content_sha256":"1c8e2ba236b712994b74db55eb3c5558d7f06a6550b00a097cafc20cbfc132fa","schema_version":"1.0","event_id":"sha256:1c8e2ba236b712994b74db55eb3c5558d7f06a6550b00a097cafc20cbfc132fa"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2017:BTTRMVQG6CL5OEUYEGJMQJH2YD","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Microsphere solid state biolasers","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"physics.optics","authors_text":"Francisco M. Fernandes, Riccardo Sapienza, Soraya Caixeiro, Van Duong Ta","submitted_at":"2017-02-06T09:57:31Z","abstract_excerpt":"Microsphere solid-state biolasers made of biomaterials-bovine serum albumin, pectin and cellulose are demonstrated. The fabrication is simple, based on emulsion, and with green processing. A lasing threshold of 1 microJ/mm2 and Q factor of 3000 are measured. The lasers are biocompatible, do not interfere with cell growth and division."},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1702.01544","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":"2026-05-18T00:51:23Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"z4l23PIIelz7KKhzI4lxHDiBJdFMflu8SWUJTyIex2eF47SMqhlZTRlFpJTS5913oG3jFPS5/C2PF1ZCUrnZBw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-07-02T18:26:48.539482Z"},"content_sha256":"4757d4f69af57ff62ca6fee3162a82b3ede783f7169aed2e2cbddf94b5128b02","schema_version":"1.0","event_id":"sha256:4757d4f69af57ff62ca6fee3162a82b3ede783f7169aed2e2cbddf94b5128b02"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/BTTRMVQG6CL5OEUYEGJMQJH2YD/bundle.json","state_url":"https://pith.science/pith/BTTRMVQG6CL5OEUYEGJMQJH2YD/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/BTTRMVQG6CL5OEUYEGJMQJH2YD/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":"2026-07-02T18:26:48Z","links":{"resolver":"https://pith.science/pith/BTTRMVQG6CL5OEUYEGJMQJH2YD","bundle":"https://pith.science/pith/BTTRMVQG6CL5OEUYEGJMQJH2YD/bundle.json","state":"https://pith.science/pith/BTTRMVQG6CL5OEUYEGJMQJH2YD/state.json","well_known_bundle":"https://pith.science/.well-known/pith/BTTRMVQG6CL5OEUYEGJMQJH2YD/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2017:BTTRMVQG6CL5OEUYEGJMQJH2YD","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":"28a3d77c3bb60ebda313a648299d9870786011cd234aa8fd99e0870db7b76f0c","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.optics","submitted_at":"2017-02-06T09:57:31Z","title_canon_sha256":"e5f4f24e0a894963fc0c91493febbdeab525f7cccab5386f0fd11468e022242e"},"schema_version":"1.0","source":{"id":"1702.01544","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1702.01544","created_at":"2026-05-18T00:51:23Z"},{"alias_kind":"arxiv_version","alias_value":"1702.01544v1","created_at":"2026-05-18T00:51:23Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1702.01544","created_at":"2026-05-18T00:51:23Z"},{"alias_kind":"pith_short_12","alias_value":"BTTRMVQG6CL5","created_at":"2026-05-18T12:31:08Z"},{"alias_kind":"pith_short_16","alias_value":"BTTRMVQG6CL5OEUY","created_at":"2026-05-18T12:31:08Z"},{"alias_kind":"pith_short_8","alias_value":"BTTRMVQG","created_at":"2026-05-18T12:31:08Z"}],"graph_snapshots":[{"event_id":"sha256:4757d4f69af57ff62ca6fee3162a82b3ede783f7169aed2e2cbddf94b5128b02","target":"graph","created_at":"2026-05-18T00:51:23Z","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":"Microsphere solid-state biolasers made of biomaterials-bovine serum albumin, pectin and cellulose are demonstrated. The fabrication is simple, based on emulsion, and with green processing. A lasing threshold of 1 microJ/mm2 and Q factor of 3000 are measured. The lasers are biocompatible, do not interfere with cell growth and division.","authors_text":"Francisco M. Fernandes, Riccardo Sapienza, Soraya Caixeiro, Van Duong Ta","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.optics","submitted_at":"2017-02-06T09:57:31Z","title":"Microsphere solid state biolasers"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1702.01544","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":"sha256:1c8e2ba236b712994b74db55eb3c5558d7f06a6550b00a097cafc20cbfc132fa","target":"record","created_at":"2026-05-18T00:51:23Z","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":"28a3d77c3bb60ebda313a648299d9870786011cd234aa8fd99e0870db7b76f0c","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.optics","submitted_at":"2017-02-06T09:57:31Z","title_canon_sha256":"e5f4f24e0a894963fc0c91493febbdeab525f7cccab5386f0fd11468e022242e"},"schema_version":"1.0","source":{"id":"1702.01544","kind":"arxiv","version":1}},"canonical_sha256":"0ce7165606f097d712982192c824fac0f49f2d2191a7b7eb3c4895f3b1c23cca","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"0ce7165606f097d712982192c824fac0f49f2d2191a7b7eb3c4895f3b1c23cca","first_computed_at":"2026-05-18T00:51:23.046418Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T00:51:23.046418Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"gnO2QRQl6w7ioL1vxsc4WpC5Y4JZ8uywoq34kBbHQOycQ7lk49ga7P+/vM5MV0ZxVfi0sC3wRlEA7i0cbzcHCQ==","signature_status":"signed_v1","signed_at":"2026-05-18T00:51:23.047032Z","signed_message":"canonical_sha256_bytes"},"source_id":"1702.01544","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:1c8e2ba236b712994b74db55eb3c5558d7f06a6550b00a097cafc20cbfc132fa","sha256:4757d4f69af57ff62ca6fee3162a82b3ede783f7169aed2e2cbddf94b5128b02"],"state_sha256":"30446f87a8dea6633e46215fffe38de82cce1b13a88c94ac686719f053209e75"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"nW3VJtqocgW0Ys57ma8UHUx52wC68QPPT+LEkTlLxMqTYS3VjaSwhgY6pDhQx3M9g06N/WHYYz2G2jAWhHxuAg==","signed_message":"bundle_sha256_bytes","signed_at":"2026-07-02T18:26:48.541362Z","bundle_sha256":"30cbf435db3b0cca6f132f1bdca0ed42f8da0d9684acd41963243aee578a2a6c"}}