{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2025:Z3ZNZD35IGMFKOOY2CCVIJEDD6","short_pith_number":"pith:Z3ZNZD35","canonical_record":{"source":{"id":"2503.18617","kind":"arxiv","version":2},"metadata":{"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"astro-ph.IM","submitted_at":"2025-03-24T12:20:24Z","cross_cats_sorted":["astro-ph.SR","cs.LG"],"title_canon_sha256":"998ee3c7ad4e4d8b94a1dddb8b8ea13cee9a182223e4d270b78210dfe94c866b","abstract_canon_sha256":"4809a253688d02d48268d4d47ede3c54711eae5bd596c3f1a6190ca4beab6025"},"schema_version":"1.0"},"canonical_sha256":"cef2dc8f7d41985539d8d0855424831fae5769f0baf1554c3726741f5d628037","source":{"kind":"arxiv","id":"2503.18617","version":2},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2503.18617","created_at":"2026-07-05T11:17:44Z"},{"alias_kind":"arxiv_version","alias_value":"2503.18617v2","created_at":"2026-07-05T11:17:44Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2503.18617","created_at":"2026-07-05T11:17:44Z"},{"alias_kind":"pith_short_12","alias_value":"Z3ZNZD35IGMF","created_at":"2026-07-05T11:17:44Z"},{"alias_kind":"pith_short_16","alias_value":"Z3ZNZD35IGMFKOOY","created_at":"2026-07-05T11:17:44Z"},{"alias_kind":"pith_short_8","alias_value":"Z3ZNZD35","created_at":"2026-07-05T11:17:44Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2025:Z3ZNZD35IGMFKOOY2CCVIJEDD6","target":"record","payload":{"canonical_record":{"source":{"id":"2503.18617","kind":"arxiv","version":2},"metadata":{"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"astro-ph.IM","submitted_at":"2025-03-24T12:20:24Z","cross_cats_sorted":["astro-ph.SR","cs.LG"],"title_canon_sha256":"998ee3c7ad4e4d8b94a1dddb8b8ea13cee9a182223e4d270b78210dfe94c866b","abstract_canon_sha256":"4809a253688d02d48268d4d47ede3c54711eae5bd596c3f1a6190ca4beab6025"},"schema_version":"1.0"},"canonical_sha256":"cef2dc8f7d41985539d8d0855424831fae5769f0baf1554c3726741f5d628037","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-05T11:17:44.203254Z","signature_b64":"6+5OAIgiBkwaAXVSzUxirL+LpykA17Q6+ohJxVkSxQZAnenhaTrtzwhxEEzk+kJRTap72B/xBciOex7n7qoNBg==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"cef2dc8f7d41985539d8d0855424831fae5769f0baf1554c3726741f5d628037","last_reissued_at":"2026-07-05T11:17:44.202703Z","signature_status":"signed_v1","first_computed_at":"2026-07-05T11:17:44.202703Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"2503.18617","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":"2026-07-05T11:17:44Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"isVKo3UzL8DMyi6LbXKtpgGbAS9XWxe/VKOhjliQF2HL5zkIV+097uZLm16eB/UK3lAETbp5q/k6yN1ISPs9Aw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-23T10:48:13.327733Z"},"content_sha256":"81f09f53935cf78a325d26171d4ce575129a2d8443af0416834b626a1b009fe4","schema_version":"1.0","event_id":"sha256:81f09f53935cf78a325d26171d4ce575129a2d8443af0416834b626a1b009fe4"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2025:Z3ZNZD35IGMFKOOY2CCVIJEDD6","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Scaling Laws for Emulation of Stellar Spectra","license":"http://creativecommons.org/licenses/by/4.0/","headline":"","cross_cats":["astro-ph.SR","cs.LG"],"primary_cat":"astro-ph.IM","authors_text":"Tomasz R\\'o\\.za\\'nski, Yuan-Sen Ting","submitted_at":"2025-03-24T12:20:24Z","abstract_excerpt":"Neural network-based emulators for the inference of stellar parameters and elemental abundances represent an increasingly popular methodology in modern spectroscopic surveys. However, these approaches are often constrained by their emulation precision and domain transfer capabilities. Greater generalizability has previously been achieved only with significantly larger model architectures, as demonstrated by Transformer-based models in natural language processing. This observation aligns with neural scaling laws, where model performance predictably improves with increased model size, computatio"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2503.18617","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":""},"integrity":{"clean":true,"summary":{"advisory":0,"critical":0,"by_detector":{},"informational":0},"endpoint":"/pith/2503.18617/integrity.json","findings":[],"available":true,"detectors_run":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938"},"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":"2026-07-05T11:17:44Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"vqD9P5+ZndVgnil5ZkMYVgBw+gVBz8b1EaZpPWZZUry9e0zviU5Z790ciodUnesGO89AQumD7T2fHblgR65rCg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-23T10:48:13.328243Z"},"content_sha256":"7a38673efaeacbe36eb62bf7f27eb21963d8a4a964e44bc0f02faeafe198ce6f","schema_version":"1.0","event_id":"sha256:7a38673efaeacbe36eb62bf7f27eb21963d8a4a964e44bc0f02faeafe198ce6f"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/Z3ZNZD35IGMFKOOY2CCVIJEDD6/bundle.json","state_url":"https://pith.science/pith/Z3ZNZD35IGMFKOOY2CCVIJEDD6/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/Z3ZNZD35IGMFKOOY2CCVIJEDD6/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":"2026-08-23T10:48:13Z","links":{"resolver":"https://pith.science/pith/Z3ZNZD35IGMFKOOY2CCVIJEDD6","bundle":"https://pith.science/pith/Z3ZNZD35IGMFKOOY2CCVIJEDD6/bundle.json","state":"https://pith.science/pith/Z3ZNZD35IGMFKOOY2CCVIJEDD6/state.json","well_known_bundle":"https://pith.science/.well-known/pith/Z3ZNZD35IGMFKOOY2CCVIJEDD6/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2025:Z3ZNZD35IGMFKOOY2CCVIJEDD6","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":"4809a253688d02d48268d4d47ede3c54711eae5bd596c3f1a6190ca4beab6025","cross_cats_sorted":["astro-ph.SR","cs.LG"],"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"astro-ph.IM","submitted_at":"2025-03-24T12:20:24Z","title_canon_sha256":"998ee3c7ad4e4d8b94a1dddb8b8ea13cee9a182223e4d270b78210dfe94c866b"},"schema_version":"1.0","source":{"id":"2503.18617","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2503.18617","created_at":"2026-07-05T11:17:44Z"},{"alias_kind":"arxiv_version","alias_value":"2503.18617v2","created_at":"2026-07-05T11:17:44Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2503.18617","created_at":"2026-07-05T11:17:44Z"},{"alias_kind":"pith_short_12","alias_value":"Z3ZNZD35IGMF","created_at":"2026-07-05T11:17:44Z"},{"alias_kind":"pith_short_16","alias_value":"Z3ZNZD35IGMFKOOY","created_at":"2026-07-05T11:17:44Z"},{"alias_kind":"pith_short_8","alias_value":"Z3ZNZD35","created_at":"2026-07-05T11:17:44Z"}],"graph_snapshots":[{"event_id":"sha256:7a38673efaeacbe36eb62bf7f27eb21963d8a4a964e44bc0f02faeafe198ce6f","target":"graph","created_at":"2026-07-05T11:17:44Z","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"},"integrity":{"available":true,"clean":true,"detectors_run":[],"endpoint":"/pith/2503.18617/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"Neural network-based emulators for the inference of stellar parameters and elemental abundances represent an increasingly popular methodology in modern spectroscopic surveys. However, these approaches are often constrained by their emulation precision and domain transfer capabilities. Greater generalizability has previously been achieved only with significantly larger model architectures, as demonstrated by Transformer-based models in natural language processing. This observation aligns with neural scaling laws, where model performance predictably improves with increased model size, computatio","authors_text":"Tomasz R\\'o\\.za\\'nski, Yuan-Sen Ting","cross_cats":["astro-ph.SR","cs.LG"],"headline":"","license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"astro-ph.IM","submitted_at":"2025-03-24T12:20:24Z","title":"Scaling Laws for Emulation of Stellar Spectra"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2503.18617","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":"sha256:81f09f53935cf78a325d26171d4ce575129a2d8443af0416834b626a1b009fe4","target":"record","created_at":"2026-07-05T11:17:44Z","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":"4809a253688d02d48268d4d47ede3c54711eae5bd596c3f1a6190ca4beab6025","cross_cats_sorted":["astro-ph.SR","cs.LG"],"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"astro-ph.IM","submitted_at":"2025-03-24T12:20:24Z","title_canon_sha256":"998ee3c7ad4e4d8b94a1dddb8b8ea13cee9a182223e4d270b78210dfe94c866b"},"schema_version":"1.0","source":{"id":"2503.18617","kind":"arxiv","version":2}},"canonical_sha256":"cef2dc8f7d41985539d8d0855424831fae5769f0baf1554c3726741f5d628037","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"cef2dc8f7d41985539d8d0855424831fae5769f0baf1554c3726741f5d628037","first_computed_at":"2026-07-05T11:17:44.202703Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T11:17:44.202703Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"6+5OAIgiBkwaAXVSzUxirL+LpykA17Q6+ohJxVkSxQZAnenhaTrtzwhxEEzk+kJRTap72B/xBciOex7n7qoNBg==","signature_status":"signed_v1","signed_at":"2026-07-05T11:17:44.203254Z","signed_message":"canonical_sha256_bytes"},"source_id":"2503.18617","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:81f09f53935cf78a325d26171d4ce575129a2d8443af0416834b626a1b009fe4","sha256:7a38673efaeacbe36eb62bf7f27eb21963d8a4a964e44bc0f02faeafe198ce6f"],"state_sha256":"61fd6392013fa3d4d1271c2aa203f06399950b4dac38e03123f20819797d0e49"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"LdTTCnBkqWh3QONHa7qxzpyHhLOSZdRxCteGUvZGGQ+cqV1/pDiuWmUpj2+4vaLWFmtU1PlxAurtIawQuX1bAA==","signed_message":"bundle_sha256_bytes","signed_at":"2026-08-23T10:48:13.333780Z","bundle_sha256":"55d8b90f2a27b1c4a3a46d1726247bdd83b3fe34571da9e5b37bd5fa36562b7f"}}