{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2010:DECKK6F6756RFDUB2CLSZY7YLT","short_pith_number":"pith:DECKK6F6","canonical_record":{"source":{"id":"1011.2745","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.CO","submitted_at":"2010-11-11T19:56:22Z","cross_cats_sorted":[],"title_canon_sha256":"a9c62f5f1740cbc3da965919830e968b175879089cf0206d04d3a5a2f72f55ed","abstract_canon_sha256":"b9443cd46aeb400000158e492a979b3fe068e9c199568b5b2f65edd0c455a8e8"},"schema_version":"1.0"},"canonical_sha256":"1904a578beff7d128e81d0972ce3f85cd4c49304c56ddbcf52c5563d436dcb82","source":{"kind":"arxiv","id":"1011.2745","version":2},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1011.2745","created_at":"2026-05-18T02:04:48Z"},{"alias_kind":"arxiv_version","alias_value":"1011.2745v2","created_at":"2026-05-18T02:04:48Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1011.2745","created_at":"2026-05-18T02:04:48Z"},{"alias_kind":"pith_short_12","alias_value":"DECKK6F6756R","created_at":"2026-05-18T12:26:06Z"},{"alias_kind":"pith_short_16","alias_value":"DECKK6F6756RFDUB","created_at":"2026-05-18T12:26:06Z"},{"alias_kind":"pith_short_8","alias_value":"DECKK6F6","created_at":"2026-05-18T12:26:06Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2010:DECKK6F6756RFDUB2CLSZY7YLT","target":"record","payload":{"canonical_record":{"source":{"id":"1011.2745","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.CO","submitted_at":"2010-11-11T19:56:22Z","cross_cats_sorted":[],"title_canon_sha256":"a9c62f5f1740cbc3da965919830e968b175879089cf0206d04d3a5a2f72f55ed","abstract_canon_sha256":"b9443cd46aeb400000158e492a979b3fe068e9c199568b5b2f65edd0c455a8e8"},"schema_version":"1.0"},"canonical_sha256":"1904a578beff7d128e81d0972ce3f85cd4c49304c56ddbcf52c5563d436dcb82","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T02:04:48.611618Z","signature_b64":"Na4qymOzdimEAuXMQFMdJ08Uo2SDanrTZJKjFoWYPo79gHsjfS9DrwlW586X1Iwe81l99YPxVJFcRi1AgFNdBw==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"1904a578beff7d128e81d0972ce3f85cd4c49304c56ddbcf52c5563d436dcb82","last_reissued_at":"2026-05-18T02:04:48.610873Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T02:04:48.610873Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1011.2745","source_version":2,"attestation_state":"computed"},"signer":{"signer_id":"pith.science","signer_type":"pith_registry","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"created_at":"2026-05-18T02:04:48Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"vjPyf5Fza045/gFU5pLgj5Ov+caDFEcuZxLB5+lyoDgp1VkEI83r41BBmm/HOjk3qHY65yx5elKG/AdX4KNPCw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-27T13:27:52.131010Z"},"content_sha256":"a9a754c4e6a96880c14ce817e1496bf1e8c3dea7d7f27059f737d015a130d81e","schema_version":"1.0","event_id":"sha256:a9a754c4e6a96880c14ce817e1496bf1e8c3dea7d7f27059f737d015a130d81e"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2010:DECKK6F6756RFDUB2CLSZY7YLT","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Star formation trends in high-redshift galaxy surveys: the elephant or the tail?","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.CO","authors_text":"Carlos S. Frenk, Daniel P. Stark, Martin Stringer, Shaun Cole","submitted_at":"2010-11-11T19:56:22Z","abstract_excerpt":"Star formation rate and accummulated stellar mass are two fundamental physical quantities that describe the evolutionary state of a forming galaxy. Two recent attempts to determine the relationship between these quantities, by interpreting a sample of star-forming galaxies at redshift of z~4, have led to opposite conclusions. We use a model galaxy population to investigate possible causes for this discrepancy and conclude that minor errors in the conversion from observables to physical quantities can lead to major misrepresentation when applied without awareness of sample selection. We also in"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1011.2745","kind":"arxiv","version":2},"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":"2026-05-18T02:04:48Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"8E466enFlx5tveTx3DPOGc+BpOaJXb+ZQZzjJ8+lWxEvMMN5KmTo2X/Qhvo7Fae8Hja3bbdbJzALIvR6QtO3Aw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-27T13:27:52.131365Z"},"content_sha256":"fa67d74d4ece97edf25a58d5aaeff64be0d318a0ffba82619de9b8042e214503","schema_version":"1.0","event_id":"sha256:fa67d74d4ece97edf25a58d5aaeff64be0d318a0ffba82619de9b8042e214503"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/DECKK6F6756RFDUB2CLSZY7YLT/bundle.json","state_url":"https://pith.science/pith/DECKK6F6756RFDUB2CLSZY7YLT/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/DECKK6F6756RFDUB2CLSZY7YLT/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":"2026-06-27T13:27:52Z","links":{"resolver":"https://pith.science/pith/DECKK6F6756RFDUB2CLSZY7YLT","bundle":"https://pith.science/pith/DECKK6F6756RFDUB2CLSZY7YLT/bundle.json","state":"https://pith.science/pith/DECKK6F6756RFDUB2CLSZY7YLT/state.json","well_known_bundle":"https://pith.science/.well-known/pith/DECKK6F6756RFDUB2CLSZY7YLT/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2010:DECKK6F6756RFDUB2CLSZY7YLT","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":"b9443cd46aeb400000158e492a979b3fe068e9c199568b5b2f65edd0c455a8e8","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.CO","submitted_at":"2010-11-11T19:56:22Z","title_canon_sha256":"a9c62f5f1740cbc3da965919830e968b175879089cf0206d04d3a5a2f72f55ed"},"schema_version":"1.0","source":{"id":"1011.2745","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1011.2745","created_at":"2026-05-18T02:04:48Z"},{"alias_kind":"arxiv_version","alias_value":"1011.2745v2","created_at":"2026-05-18T02:04:48Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1011.2745","created_at":"2026-05-18T02:04:48Z"},{"alias_kind":"pith_short_12","alias_value":"DECKK6F6756R","created_at":"2026-05-18T12:26:06Z"},{"alias_kind":"pith_short_16","alias_value":"DECKK6F6756RFDUB","created_at":"2026-05-18T12:26:06Z"},{"alias_kind":"pith_short_8","alias_value":"DECKK6F6","created_at":"2026-05-18T12:26:06Z"}],"graph_snapshots":[{"event_id":"sha256:fa67d74d4ece97edf25a58d5aaeff64be0d318a0ffba82619de9b8042e214503","target":"graph","created_at":"2026-05-18T02:04:48Z","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":"Star formation rate and accummulated stellar mass are two fundamental physical quantities that describe the evolutionary state of a forming galaxy. Two recent attempts to determine the relationship between these quantities, by interpreting a sample of star-forming galaxies at redshift of z~4, have led to opposite conclusions. We use a model galaxy population to investigate possible causes for this discrepancy and conclude that minor errors in the conversion from observables to physical quantities can lead to major misrepresentation when applied without awareness of sample selection. We also in","authors_text":"Carlos S. Frenk, Daniel P. Stark, Martin Stringer, Shaun Cole","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.CO","submitted_at":"2010-11-11T19:56:22Z","title":"Star formation trends in high-redshift galaxy surveys: the elephant or the tail?"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1011.2745","kind":"arxiv","version":2},"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:a9a754c4e6a96880c14ce817e1496bf1e8c3dea7d7f27059f737d015a130d81e","target":"record","created_at":"2026-05-18T02:04:48Z","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":"b9443cd46aeb400000158e492a979b3fe068e9c199568b5b2f65edd0c455a8e8","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.CO","submitted_at":"2010-11-11T19:56:22Z","title_canon_sha256":"a9c62f5f1740cbc3da965919830e968b175879089cf0206d04d3a5a2f72f55ed"},"schema_version":"1.0","source":{"id":"1011.2745","kind":"arxiv","version":2}},"canonical_sha256":"1904a578beff7d128e81d0972ce3f85cd4c49304c56ddbcf52c5563d436dcb82","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"1904a578beff7d128e81d0972ce3f85cd4c49304c56ddbcf52c5563d436dcb82","first_computed_at":"2026-05-18T02:04:48.610873Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T02:04:48.610873Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"Na4qymOzdimEAuXMQFMdJ08Uo2SDanrTZJKjFoWYPo79gHsjfS9DrwlW586X1Iwe81l99YPxVJFcRi1AgFNdBw==","signature_status":"signed_v1","signed_at":"2026-05-18T02:04:48.611618Z","signed_message":"canonical_sha256_bytes"},"source_id":"1011.2745","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:a9a754c4e6a96880c14ce817e1496bf1e8c3dea7d7f27059f737d015a130d81e","sha256:fa67d74d4ece97edf25a58d5aaeff64be0d318a0ffba82619de9b8042e214503"],"state_sha256":"9356ffe8d52345e9b9276a40312d3ba021dbed3f8e699b64139da923b6c38a0c"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"4U5iFuEYfpb0q+IUVlHGAWNs+V7loY+SToHhpWzZp179oedHJK8j5nqZAobznAXuEQRcaHW9+c+smwBOmi8/DQ==","signed_message":"bundle_sha256_bytes","signed_at":"2026-06-27T13:27:52.133285Z","bundle_sha256":"f79b9cf63fe1892d203b90e756d0d9ae6053c67edb7ee5cbe08d35073fad006f"}}