{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2011:2WW6UX7ZY2FEKCE7J3XDC6WMZ4","short_pith_number":"pith:2WW6UX7Z","canonical_record":{"source":{"id":"1104.2839","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2011-04-14T17:16:37Z","cross_cats_sorted":[],"title_canon_sha256":"2f58a2fe3fd543eb1c52f915bf774418fda12dd5cc07805aa971a3e33db6302c","abstract_canon_sha256":"ba6904533a85357681c7d52ae9392f5cea0a1cac6e5e0873c92ffaffd2b9e6fd"},"schema_version":"1.0"},"canonical_sha256":"d5adea5ff9c68a45089f4eee317acccf31bf6fbd318d4a6a7e74c20e9b6114e6","source":{"kind":"arxiv","id":"1104.2839","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1104.2839","created_at":"2026-05-18T02:02:28Z"},{"alias_kind":"arxiv_version","alias_value":"1104.2839v1","created_at":"2026-05-18T02:02:28Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1104.2839","created_at":"2026-05-18T02:02:28Z"},{"alias_kind":"pith_short_12","alias_value":"2WW6UX7ZY2FE","created_at":"2026-05-18T12:26:18Z"},{"alias_kind":"pith_short_16","alias_value":"2WW6UX7ZY2FEKCE7","created_at":"2026-05-18T12:26:18Z"},{"alias_kind":"pith_short_8","alias_value":"2WW6UX7Z","created_at":"2026-05-18T12:26:18Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2011:2WW6UX7ZY2FEKCE7J3XDC6WMZ4","target":"record","payload":{"canonical_record":{"source":{"id":"1104.2839","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2011-04-14T17:16:37Z","cross_cats_sorted":[],"title_canon_sha256":"2f58a2fe3fd543eb1c52f915bf774418fda12dd5cc07805aa971a3e33db6302c","abstract_canon_sha256":"ba6904533a85357681c7d52ae9392f5cea0a1cac6e5e0873c92ffaffd2b9e6fd"},"schema_version":"1.0"},"canonical_sha256":"d5adea5ff9c68a45089f4eee317acccf31bf6fbd318d4a6a7e74c20e9b6114e6","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T02:02:28.795248Z","signature_b64":"Nx/zyIAlMsRLoVSpOCsKmc7tBYkrFzx6z3eNOqW7BUeenmCQn6Toq6qNyUqid7eqidhOVi1+CMvzy1B706HGDQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"d5adea5ff9c68a45089f4eee317acccf31bf6fbd318d4a6a7e74c20e9b6114e6","last_reissued_at":"2026-05-18T02:02:28.794453Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T02:02:28.794453Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1104.2839","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":"2026-05-18T02:02:28Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"TbwPX8/vQRsel++VQgpYNuBRUf4NVi7ZlB7tI0Zrf8mzcUTf6229FrTj9fyiNeEwohRE1i8UxEyLhbRmvOZqBw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-30T20:22:26.592869Z"},"content_sha256":"00309bfdcb40d7aa03e607cf700a095a2c7c3e80d41cee6c3e900d9248e453c6","schema_version":"1.0","event_id":"sha256:00309bfdcb40d7aa03e607cf700a095a2c7c3e80d41cee6c3e900d9248e453c6"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2011:2WW6UX7ZY2FEKCE7J3XDC6WMZ4","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Extracting science from surveys of our Galaxy","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.GA","authors_text":"James Binney","submitted_at":"2011-04-14T17:16:37Z","abstract_excerpt":"Our knowledge of the Galaxy is being revolutionised by a series of photometric, spectroscopic and astrometric surveys. Already an enormous body of data is available from completed surveys, and data of ever increasing quality and richness will accrue at least until the end of this decade. To extract science from these surveys we need a class of models that can give probability density functions in the space of the observables of a survey -- we should not attempt to \"invert\" the data from the space of observables into the physical space of the Galaxy. Currently just one class of model has the re"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1104.2839","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":"2026-05-18T02:02:28Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"73tkfewRv3anK/4MNzvKL4W9yuG+jMDFiw8j8dfE1VEc3j9QFUVoD/RhI/zGHzHcY4oDDFOF9Op/kDzUzMBwDw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-30T20:22:26.593533Z"},"content_sha256":"1300d85075c364eca7848e44113b4ddba9d26e42b5dc3da9528b6fafb72b1d41","schema_version":"1.0","event_id":"sha256:1300d85075c364eca7848e44113b4ddba9d26e42b5dc3da9528b6fafb72b1d41"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/2WW6UX7ZY2FEKCE7J3XDC6WMZ4/bundle.json","state_url":"https://pith.science/pith/2WW6UX7ZY2FEKCE7J3XDC6WMZ4/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/2WW6UX7ZY2FEKCE7J3XDC6WMZ4/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":"2026-05-30T20:22:26Z","links":{"resolver":"https://pith.science/pith/2WW6UX7ZY2FEKCE7J3XDC6WMZ4","bundle":"https://pith.science/pith/2WW6UX7ZY2FEKCE7J3XDC6WMZ4/bundle.json","state":"https://pith.science/pith/2WW6UX7ZY2FEKCE7J3XDC6WMZ4/state.json","well_known_bundle":"https://pith.science/.well-known/pith/2WW6UX7ZY2FEKCE7J3XDC6WMZ4/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2011:2WW6UX7ZY2FEKCE7J3XDC6WMZ4","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":"ba6904533a85357681c7d52ae9392f5cea0a1cac6e5e0873c92ffaffd2b9e6fd","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2011-04-14T17:16:37Z","title_canon_sha256":"2f58a2fe3fd543eb1c52f915bf774418fda12dd5cc07805aa971a3e33db6302c"},"schema_version":"1.0","source":{"id":"1104.2839","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1104.2839","created_at":"2026-05-18T02:02:28Z"},{"alias_kind":"arxiv_version","alias_value":"1104.2839v1","created_at":"2026-05-18T02:02:28Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1104.2839","created_at":"2026-05-18T02:02:28Z"},{"alias_kind":"pith_short_12","alias_value":"2WW6UX7ZY2FE","created_at":"2026-05-18T12:26:18Z"},{"alias_kind":"pith_short_16","alias_value":"2WW6UX7ZY2FEKCE7","created_at":"2026-05-18T12:26:18Z"},{"alias_kind":"pith_short_8","alias_value":"2WW6UX7Z","created_at":"2026-05-18T12:26:18Z"}],"graph_snapshots":[{"event_id":"sha256:1300d85075c364eca7848e44113b4ddba9d26e42b5dc3da9528b6fafb72b1d41","target":"graph","created_at":"2026-05-18T02:02:28Z","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":"Our knowledge of the Galaxy is being revolutionised by a series of photometric, spectroscopic and astrometric surveys. Already an enormous body of data is available from completed surveys, and data of ever increasing quality and richness will accrue at least until the end of this decade. To extract science from these surveys we need a class of models that can give probability density functions in the space of the observables of a survey -- we should not attempt to \"invert\" the data from the space of observables into the physical space of the Galaxy. Currently just one class of model has the re","authors_text":"James Binney","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2011-04-14T17:16:37Z","title":"Extracting science from surveys of our Galaxy"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1104.2839","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":"sha256:00309bfdcb40d7aa03e607cf700a095a2c7c3e80d41cee6c3e900d9248e453c6","target":"record","created_at":"2026-05-18T02:02:28Z","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":"ba6904533a85357681c7d52ae9392f5cea0a1cac6e5e0873c92ffaffd2b9e6fd","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2011-04-14T17:16:37Z","title_canon_sha256":"2f58a2fe3fd543eb1c52f915bf774418fda12dd5cc07805aa971a3e33db6302c"},"schema_version":"1.0","source":{"id":"1104.2839","kind":"arxiv","version":1}},"canonical_sha256":"d5adea5ff9c68a45089f4eee317acccf31bf6fbd318d4a6a7e74c20e9b6114e6","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"d5adea5ff9c68a45089f4eee317acccf31bf6fbd318d4a6a7e74c20e9b6114e6","first_computed_at":"2026-05-18T02:02:28.794453Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T02:02:28.794453Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"Nx/zyIAlMsRLoVSpOCsKmc7tBYkrFzx6z3eNOqW7BUeenmCQn6Toq6qNyUqid7eqidhOVi1+CMvzy1B706HGDQ==","signature_status":"signed_v1","signed_at":"2026-05-18T02:02:28.795248Z","signed_message":"canonical_sha256_bytes"},"source_id":"1104.2839","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:00309bfdcb40d7aa03e607cf700a095a2c7c3e80d41cee6c3e900d9248e453c6","sha256:1300d85075c364eca7848e44113b4ddba9d26e42b5dc3da9528b6fafb72b1d41"],"state_sha256":"edd6d68ceba6972308fbedb570b19109c3a6c9e36badab0324609eff75612f98"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"8pVsTMTAlO49bnz7Tc4OmflfX//uRU1sL7FHRNFY0o6utg2zwFC9T35LTsn2rwwrNG1VnqyV13o8SvDUAJhTCQ==","signed_message":"bundle_sha256_bytes","signed_at":"2026-05-30T20:22:26.596872Z","bundle_sha256":"0249b4982cbd50cc83ee27cc62d5d4155aafb1560e4cac172064323f20a57342"}}