{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2012:JTWGVBWJ4K5ZFPMLXR4LOUET2O","short_pith_number":"pith:JTWGVBWJ","canonical_record":{"source":{"id":"1210.3410","kind":"arxiv","version":2},"metadata":{"license":"http://creativecommons.org/licenses/by/3.0/","primary_cat":"physics.ed-ph","submitted_at":"2012-10-12T01:21:20Z","cross_cats_sorted":["physics.comp-ph"],"title_canon_sha256":"43b99c88915190060dd8abbcaddc23f3cf3a3116d8c9ca0ca3b86488c3110f0e","abstract_canon_sha256":"c2a99f8c6ac5788c7557421634870128c3a9a5a234a5d1e253beaedd77d176fe"},"schema_version":"1.0"},"canonical_sha256":"4cec6a86c9e2bb92bd8bbc78b75093d3a964f8095abae0e96a9df9df2a19ce8a","source":{"kind":"arxiv","id":"1210.3410","version":2},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1210.3410","created_at":"2026-05-18T03:09:20Z"},{"alias_kind":"arxiv_version","alias_value":"1210.3410v2","created_at":"2026-05-18T03:09:20Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1210.3410","created_at":"2026-05-18T03:09:20Z"},{"alias_kind":"pith_short_12","alias_value":"JTWGVBWJ4K5Z","created_at":"2026-05-18T12:27:11Z"},{"alias_kind":"pith_short_16","alias_value":"JTWGVBWJ4K5ZFPML","created_at":"2026-05-18T12:27:11Z"},{"alias_kind":"pith_short_8","alias_value":"JTWGVBWJ","created_at":"2026-05-18T12:27:11Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2012:JTWGVBWJ4K5ZFPMLXR4LOUET2O","target":"record","payload":{"canonical_record":{"source":{"id":"1210.3410","kind":"arxiv","version":2},"metadata":{"license":"http://creativecommons.org/licenses/by/3.0/","primary_cat":"physics.ed-ph","submitted_at":"2012-10-12T01:21:20Z","cross_cats_sorted":["physics.comp-ph"],"title_canon_sha256":"43b99c88915190060dd8abbcaddc23f3cf3a3116d8c9ca0ca3b86488c3110f0e","abstract_canon_sha256":"c2a99f8c6ac5788c7557421634870128c3a9a5a234a5d1e253beaedd77d176fe"},"schema_version":"1.0"},"canonical_sha256":"4cec6a86c9e2bb92bd8bbc78b75093d3a964f8095abae0e96a9df9df2a19ce8a","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T03:09:20.094252Z","signature_b64":"X5wOQUHIY4raBVPm+CbA1g40sSQFcFc1HhSOup5v/h2htzvoWlGdCdHx/ORU4ORpxJWiPRK/+tYpxn7huu2PCw==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"4cec6a86c9e2bb92bd8bbc78b75093d3a964f8095abae0e96a9df9df2a19ce8a","last_reissued_at":"2026-05-18T03:09:20.093538Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T03:09:20.093538Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1210.3410","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":"2026-05-18T03:09:20Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"lNzAfpWrBCYfp3g4hkj2SCp0gDup53FERcs+f+WJix51UzzoOn25PXiPyu9Nv/RAkQ9WNn2QreABXZjvKa8zCA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-07T07:33:34.274293Z"},"content_sha256":"3cf4e4a3f01a7ba2c0b7e8718756d4dc334dd3abbaf229a49092b3d374084f23","schema_version":"1.0","event_id":"sha256:3cf4e4a3f01a7ba2c0b7e8718756d4dc334dd3abbaf229a49092b3d374084f23"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2012:JTWGVBWJ4K5ZFPMLXR4LOUET2O","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Computer Models Design for Teaching and Learning using Easy Java Simulation","license":"http://creativecommons.org/licenses/by/3.0/","headline":"","cross_cats":["physics.comp-ph"],"primary_cat":"physics.ed-ph","authors_text":"Ai Phing Lim, Chee Wah Ong, Chew Ling Lim, Ee-Peow Lim, Giam Hwee Jimmy Goh, Kenneth Y. T. LimI, Khoon Song Aloysius Goh, Loo Kang Lawrence Wee, Matthew Ong, Soo Kok Ng, Sze Yee LyeYE, Tat Leong Lee, Wee Leng Joshua Yeo, Weiming Xu","submitted_at":"2012-10-12T01:21:20Z","abstract_excerpt":"We are teachers who have benefited from the Open Source Physics (Brown, 2012; Christian, 2010; Esquembre, 2012) community's work and we would like to share some of the computer models and lesson packages that we have designed and implemented in five schools grade 11 to 12 classes. In a ground-up teacher-leadership (MOE, 2010) approach, we came together to learn, advancing the professionalism (MOE, 2009) of physics educators and improve students' learning experiences through suitable blend (Jaakkola, 2012) of real equipment and computer models where appropriate . We will share computer models t"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1210.3410","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":"2026-05-18T03:09:20Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"U0G+ucuR7Rwy3PhZ1ulrdW8gEV3jIQNdrjgkZf8OsaVIBtgZjXjgt1lNquw4TxJKCVSKbLzaCkuNb1HboTTzBQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-07T07:33:34.274863Z"},"content_sha256":"b6967354765b9367b0e7d438972e31745b8bb814e2e4e86dd028470dee5a38ca","schema_version":"1.0","event_id":"sha256:b6967354765b9367b0e7d438972e31745b8bb814e2e4e86dd028470dee5a38ca"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/JTWGVBWJ4K5ZFPMLXR4LOUET2O/bundle.json","state_url":"https://pith.science/pith/JTWGVBWJ4K5ZFPMLXR4LOUET2O/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/JTWGVBWJ4K5ZFPMLXR4LOUET2O/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":"2026-06-07T07:33:34Z","links":{"resolver":"https://pith.science/pith/JTWGVBWJ4K5ZFPMLXR4LOUET2O","bundle":"https://pith.science/pith/JTWGVBWJ4K5ZFPMLXR4LOUET2O/bundle.json","state":"https://pith.science/pith/JTWGVBWJ4K5ZFPMLXR4LOUET2O/state.json","well_known_bundle":"https://pith.science/.well-known/pith/JTWGVBWJ4K5ZFPMLXR4LOUET2O/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2012:JTWGVBWJ4K5ZFPMLXR4LOUET2O","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":"c2a99f8c6ac5788c7557421634870128c3a9a5a234a5d1e253beaedd77d176fe","cross_cats_sorted":["physics.comp-ph"],"license":"http://creativecommons.org/licenses/by/3.0/","primary_cat":"physics.ed-ph","submitted_at":"2012-10-12T01:21:20Z","title_canon_sha256":"43b99c88915190060dd8abbcaddc23f3cf3a3116d8c9ca0ca3b86488c3110f0e"},"schema_version":"1.0","source":{"id":"1210.3410","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1210.3410","created_at":"2026-05-18T03:09:20Z"},{"alias_kind":"arxiv_version","alias_value":"1210.3410v2","created_at":"2026-05-18T03:09:20Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1210.3410","created_at":"2026-05-18T03:09:20Z"},{"alias_kind":"pith_short_12","alias_value":"JTWGVBWJ4K5Z","created_at":"2026-05-18T12:27:11Z"},{"alias_kind":"pith_short_16","alias_value":"JTWGVBWJ4K5ZFPML","created_at":"2026-05-18T12:27:11Z"},{"alias_kind":"pith_short_8","alias_value":"JTWGVBWJ","created_at":"2026-05-18T12:27:11Z"}],"graph_snapshots":[{"event_id":"sha256:b6967354765b9367b0e7d438972e31745b8bb814e2e4e86dd028470dee5a38ca","target":"graph","created_at":"2026-05-18T03:09:20Z","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":"We are teachers who have benefited from the Open Source Physics (Brown, 2012; Christian, 2010; Esquembre, 2012) community's work and we would like to share some of the computer models and lesson packages that we have designed and implemented in five schools grade 11 to 12 classes. In a ground-up teacher-leadership (MOE, 2010) approach, we came together to learn, advancing the professionalism (MOE, 2009) of physics educators and improve students' learning experiences through suitable blend (Jaakkola, 2012) of real equipment and computer models where appropriate . We will share computer models t","authors_text":"Ai Phing Lim, Chee Wah Ong, Chew Ling Lim, Ee-Peow Lim, Giam Hwee Jimmy Goh, Kenneth Y. T. LimI, Khoon Song Aloysius Goh, Loo Kang Lawrence Wee, Matthew Ong, Soo Kok Ng, Sze Yee LyeYE, Tat Leong Lee, Wee Leng Joshua Yeo, Weiming Xu","cross_cats":["physics.comp-ph"],"headline":"","license":"http://creativecommons.org/licenses/by/3.0/","primary_cat":"physics.ed-ph","submitted_at":"2012-10-12T01:21:20Z","title":"Computer Models Design for Teaching and Learning using Easy Java Simulation"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1210.3410","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":"sha256:3cf4e4a3f01a7ba2c0b7e8718756d4dc334dd3abbaf229a49092b3d374084f23","target":"record","created_at":"2026-05-18T03:09:20Z","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":"c2a99f8c6ac5788c7557421634870128c3a9a5a234a5d1e253beaedd77d176fe","cross_cats_sorted":["physics.comp-ph"],"license":"http://creativecommons.org/licenses/by/3.0/","primary_cat":"physics.ed-ph","submitted_at":"2012-10-12T01:21:20Z","title_canon_sha256":"43b99c88915190060dd8abbcaddc23f3cf3a3116d8c9ca0ca3b86488c3110f0e"},"schema_version":"1.0","source":{"id":"1210.3410","kind":"arxiv","version":2}},"canonical_sha256":"4cec6a86c9e2bb92bd8bbc78b75093d3a964f8095abae0e96a9df9df2a19ce8a","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"4cec6a86c9e2bb92bd8bbc78b75093d3a964f8095abae0e96a9df9df2a19ce8a","first_computed_at":"2026-05-18T03:09:20.093538Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T03:09:20.093538Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"X5wOQUHIY4raBVPm+CbA1g40sSQFcFc1HhSOup5v/h2htzvoWlGdCdHx/ORU4ORpxJWiPRK/+tYpxn7huu2PCw==","signature_status":"signed_v1","signed_at":"2026-05-18T03:09:20.094252Z","signed_message":"canonical_sha256_bytes"},"source_id":"1210.3410","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:3cf4e4a3f01a7ba2c0b7e8718756d4dc334dd3abbaf229a49092b3d374084f23","sha256:b6967354765b9367b0e7d438972e31745b8bb814e2e4e86dd028470dee5a38ca"],"state_sha256":"c679c109b96e81570a974f1342245a877418437310f3d9d0cbe708e8a2a206bf"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"IqUOkiDtZrO+WLTFQYsk0FtetIUxIyKfVI0YDUfWp7fiE+8UJBoDfSCwtV7C9Br4q/qsuVg540isal+U2stTAw==","signed_message":"bundle_sha256_bytes","signed_at":"2026-06-07T07:33:34.277732Z","bundle_sha256":"4ded6570e4041d081249db4e2946f97a93de0e7f90379eac90813ed47f4dd19a"}}