{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2026:5GPWEGEDWPIF2VTPXSPB62W76D","short_pith_number":"pith:5GPWEGED","canonical_record":{"source":{"id":"2605.30624","kind":"arxiv","version":1},"metadata":{"license":"http://creativecommons.org/licenses/by-nc-nd/4.0/","primary_cat":"physics.ed-ph","submitted_at":"2026-05-28T22:19:08Z","cross_cats_sorted":["physics.class-ph"],"title_canon_sha256":"c9de6401a276495d3652e4c376a58c3bb6204a6d2aa03097f1fbaa7cd1810d8a","abstract_canon_sha256":"5a61e4cd41b19edb473be1c56580e68e1911c3896abaabcf52563d3b752f2046"},"schema_version":"1.0"},"canonical_sha256":"e99f621883b3d05d566fbc9e1f6adff0edd67ae7560ee2d91160225f5fe9cd93","source":{"kind":"arxiv","id":"2605.30624","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2605.30624","created_at":"2026-06-01T01:03:04Z"},{"alias_kind":"arxiv_version","alias_value":"2605.30624v1","created_at":"2026-06-01T01:03:04Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2605.30624","created_at":"2026-06-01T01:03:04Z"},{"alias_kind":"pith_short_12","alias_value":"5GPWEGEDWPIF","created_at":"2026-06-01T01:03:04Z"},{"alias_kind":"pith_short_16","alias_value":"5GPWEGEDWPIF2VTP","created_at":"2026-06-01T01:03:04Z"},{"alias_kind":"pith_short_8","alias_value":"5GPWEGED","created_at":"2026-06-01T01:03:04Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2026:5GPWEGEDWPIF2VTPXSPB62W76D","target":"record","payload":{"canonical_record":{"source":{"id":"2605.30624","kind":"arxiv","version":1},"metadata":{"license":"http://creativecommons.org/licenses/by-nc-nd/4.0/","primary_cat":"physics.ed-ph","submitted_at":"2026-05-28T22:19:08Z","cross_cats_sorted":["physics.class-ph"],"title_canon_sha256":"c9de6401a276495d3652e4c376a58c3bb6204a6d2aa03097f1fbaa7cd1810d8a","abstract_canon_sha256":"5a61e4cd41b19edb473be1c56580e68e1911c3896abaabcf52563d3b752f2046"},"schema_version":"1.0"},"canonical_sha256":"e99f621883b3d05d566fbc9e1f6adff0edd67ae7560ee2d91160225f5fe9cd93","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-06-01T01:03:04.735593Z","signature_b64":"1d+y03xcCyef1KcAvVzrg2hErTZ4mvmhGUkGsj/d9oTtyezL9NZYVTG2U9bMj3+Q6cDd66butq31hj/egG8PBQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"e99f621883b3d05d566fbc9e1f6adff0edd67ae7560ee2d91160225f5fe9cd93","last_reissued_at":"2026-06-01T01:03:04.734863Z","signature_status":"signed_v1","first_computed_at":"2026-06-01T01:03:04.734863Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"2605.30624","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":"2026-06-01T01:03:04Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"lBU+BS85FQ7nT4HSnBoIAjhEWYzrKbRiI5D0CX/3QxX2moAqTSqY5BEUbiwFM6HKyFxd/WjPltGMZsx/hr6iBg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-07-29T04:31:46.166093Z"},"content_sha256":"ba28d7905454c8f4b0565d1b37007c439e54213d66f5ebffeee350a811bc7bcb","schema_version":"1.0","event_id":"sha256:ba28d7905454c8f4b0565d1b37007c439e54213d66f5ebffeee350a811bc7bcb"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2026:5GPWEGEDWPIF2VTPXSPB62W76D","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Constraints From Simulation Improve Experiential Outcomes in Laboratory Environment","license":"http://creativecommons.org/licenses/by-nc-nd/4.0/","headline":"","cross_cats":["physics.class-ph"],"primary_cat":"physics.ed-ph","authors_text":"D. A. Bonn, James Day, Jeff Bale, J. Ives","submitted_at":"2026-05-28T22:19:08Z","abstract_excerpt":"In a first-year physics inquiry lab, pairs of students were randomly assigned to study pendulum motion using either a physical apparatus or a computer simulation. The experiment required detecting a  ~1% difference in period between pendulums released at 10$^\\circ$ and 20$^\\circ$. This is the subtle failure of the small angle approximation and a goal that demands iteratively refined, high-precision measurements. Students using the simulation achieved significantly more reproducible timing measurements across all rounds of data collection and, by the third round, had also adopted more effective"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2605.30624","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":""},"integrity":{"clean":true,"summary":{"advisory":0,"critical":0,"by_detector":{},"informational":0},"endpoint":"/pith/2605.30624/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":"2026-06-01T01:03:04Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"K+krVlToyYzyCDab3YIM0r4gZV0x44+KZMpufQg+cowlPnlav9QUKR8aBSkC70aKV/imnbzq7g75AKx00A8sBA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-07-29T04:31:46.166505Z"},"content_sha256":"2592231f1ef35a6509e1aa7dc6205ac7ccc98633db2288e79296df63ce09c981","schema_version":"1.0","event_id":"sha256:2592231f1ef35a6509e1aa7dc6205ac7ccc98633db2288e79296df63ce09c981"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/5GPWEGEDWPIF2VTPXSPB62W76D/bundle.json","state_url":"https://pith.science/pith/5GPWEGEDWPIF2VTPXSPB62W76D/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/5GPWEGEDWPIF2VTPXSPB62W76D/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":"2026-07-29T04:31:46Z","links":{"resolver":"https://pith.science/pith/5GPWEGEDWPIF2VTPXSPB62W76D","bundle":"https://pith.science/pith/5GPWEGEDWPIF2VTPXSPB62W76D/bundle.json","state":"https://pith.science/pith/5GPWEGEDWPIF2VTPXSPB62W76D/state.json","well_known_bundle":"https://pith.science/.well-known/pith/5GPWEGEDWPIF2VTPXSPB62W76D/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2026:5GPWEGEDWPIF2VTPXSPB62W76D","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":"5a61e4cd41b19edb473be1c56580e68e1911c3896abaabcf52563d3b752f2046","cross_cats_sorted":["physics.class-ph"],"license":"http://creativecommons.org/licenses/by-nc-nd/4.0/","primary_cat":"physics.ed-ph","submitted_at":"2026-05-28T22:19:08Z","title_canon_sha256":"c9de6401a276495d3652e4c376a58c3bb6204a6d2aa03097f1fbaa7cd1810d8a"},"schema_version":"1.0","source":{"id":"2605.30624","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2605.30624","created_at":"2026-06-01T01:03:04Z"},{"alias_kind":"arxiv_version","alias_value":"2605.30624v1","created_at":"2026-06-01T01:03:04Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2605.30624","created_at":"2026-06-01T01:03:04Z"},{"alias_kind":"pith_short_12","alias_value":"5GPWEGEDWPIF","created_at":"2026-06-01T01:03:04Z"},{"alias_kind":"pith_short_16","alias_value":"5GPWEGEDWPIF2VTP","created_at":"2026-06-01T01:03:04Z"},{"alias_kind":"pith_short_8","alias_value":"5GPWEGED","created_at":"2026-06-01T01:03:04Z"}],"graph_snapshots":[{"event_id":"sha256:2592231f1ef35a6509e1aa7dc6205ac7ccc98633db2288e79296df63ce09c981","target":"graph","created_at":"2026-06-01T01:03:04Z","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/2605.30624/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"In a first-year physics inquiry lab, pairs of students were randomly assigned to study pendulum motion using either a physical apparatus or a computer simulation. The experiment required detecting a  ~1% difference in period between pendulums released at 10$^\\circ$ and 20$^\\circ$. This is the subtle failure of the small angle approximation and a goal that demands iteratively refined, high-precision measurements. Students using the simulation achieved significantly more reproducible timing measurements across all rounds of data collection and, by the third round, had also adopted more effective","authors_text":"D. A. Bonn, James Day, Jeff Bale, J. Ives","cross_cats":["physics.class-ph"],"headline":"","license":"http://creativecommons.org/licenses/by-nc-nd/4.0/","primary_cat":"physics.ed-ph","submitted_at":"2026-05-28T22:19:08Z","title":"Constraints From Simulation Improve Experiential Outcomes in Laboratory Environment"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2605.30624","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:ba28d7905454c8f4b0565d1b37007c439e54213d66f5ebffeee350a811bc7bcb","target":"record","created_at":"2026-06-01T01:03:04Z","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":"5a61e4cd41b19edb473be1c56580e68e1911c3896abaabcf52563d3b752f2046","cross_cats_sorted":["physics.class-ph"],"license":"http://creativecommons.org/licenses/by-nc-nd/4.0/","primary_cat":"physics.ed-ph","submitted_at":"2026-05-28T22:19:08Z","title_canon_sha256":"c9de6401a276495d3652e4c376a58c3bb6204a6d2aa03097f1fbaa7cd1810d8a"},"schema_version":"1.0","source":{"id":"2605.30624","kind":"arxiv","version":1}},"canonical_sha256":"e99f621883b3d05d566fbc9e1f6adff0edd67ae7560ee2d91160225f5fe9cd93","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"e99f621883b3d05d566fbc9e1f6adff0edd67ae7560ee2d91160225f5fe9cd93","first_computed_at":"2026-06-01T01:03:04.734863Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-06-01T01:03:04.734863Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"1d+y03xcCyef1KcAvVzrg2hErTZ4mvmhGUkGsj/d9oTtyezL9NZYVTG2U9bMj3+Q6cDd66butq31hj/egG8PBQ==","signature_status":"signed_v1","signed_at":"2026-06-01T01:03:04.735593Z","signed_message":"canonical_sha256_bytes"},"source_id":"2605.30624","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:ba28d7905454c8f4b0565d1b37007c439e54213d66f5ebffeee350a811bc7bcb","sha256:2592231f1ef35a6509e1aa7dc6205ac7ccc98633db2288e79296df63ce09c981"],"state_sha256":"6943006aad6d16ea6736f5062519b4c135ceec83244f953ed5e0a52152596ee0"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"zP2BmhIZu9gMEHG3Jkpx7T8cTC+WMZmEbncvaMSdbnBcR0/5ABiBFgBx5pbTiVBWY2PjoCKB9eiiyxSPjbeACw==","signed_message":"bundle_sha256_bytes","signed_at":"2026-07-29T04:31:46.169038Z","bundle_sha256":"6ad1fac096fb4d72c797582fcceb80bafd8513c96c65a6fc25b3644c866bcafb"}}