{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2019:BH7OOWBF2IUSVGLUN7OHJ53A46","short_pith_number":"pith:BH7OOWBF","canonical_record":{"source":{"id":"1902.08356","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.EP","submitted_at":"2019-02-22T04:11:40Z","cross_cats_sorted":[],"title_canon_sha256":"6dc0941b6b0364052f7b9d271f672eb9db9580fb2f41c6d52d612d5f12e525ae","abstract_canon_sha256":"d4768318153a79ab017d7a0f2e20888362af22a146b4c7873f16705b897080e6"},"schema_version":"1.0"},"canonical_sha256":"09fee75825d2292a99746fdc74f760e799fcc93d848f02bef8f2952c80b8d32f","source":{"kind":"arxiv","id":"1902.08356","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1902.08356","created_at":"2026-05-17T23:49:01Z"},{"alias_kind":"arxiv_version","alias_value":"1902.08356v1","created_at":"2026-05-17T23:49:01Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1902.08356","created_at":"2026-05-17T23:49:01Z"},{"alias_kind":"pith_short_12","alias_value":"BH7OOWBF2IUS","created_at":"2026-05-18T12:33:12Z"},{"alias_kind":"pith_short_16","alias_value":"BH7OOWBF2IUSVGLU","created_at":"2026-05-18T12:33:12Z"},{"alias_kind":"pith_short_8","alias_value":"BH7OOWBF","created_at":"2026-05-18T12:33:12Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2019:BH7OOWBF2IUSVGLUN7OHJ53A46","target":"record","payload":{"canonical_record":{"source":{"id":"1902.08356","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.EP","submitted_at":"2019-02-22T04:11:40Z","cross_cats_sorted":[],"title_canon_sha256":"6dc0941b6b0364052f7b9d271f672eb9db9580fb2f41c6d52d612d5f12e525ae","abstract_canon_sha256":"d4768318153a79ab017d7a0f2e20888362af22a146b4c7873f16705b897080e6"},"schema_version":"1.0"},"canonical_sha256":"09fee75825d2292a99746fdc74f760e799fcc93d848f02bef8f2952c80b8d32f","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-17T23:49:01.848830Z","signature_b64":"eNQXMHo0xpPlTvf6o+bhJYAj/sEvr1QnDVA7cnTdOYsNGJRzzCuEdq4Ic7b9nHB3SEUyyt7gAnMod1PKBdCiDw==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"09fee75825d2292a99746fdc74f760e799fcc93d848f02bef8f2952c80b8d32f","last_reissued_at":"2026-05-17T23:49:01.848434Z","signature_status":"signed_v1","first_computed_at":"2026-05-17T23:49:01.848434Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1902.08356","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":"2026-05-17T23:49:01Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"y7gdtRAouIzFUoOT1eRK5fbux4J99BRhDxK6+FpsovkEMoDkdpMtQsTR7gJi/pDtUYtxB2TUATeQqELVnQz3Ag==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-11T14:35:21.710920Z"},"content_sha256":"f31a5c9b154aa3cd8da1f476673b4c99eb0e6b3f39c5f01f3591a66c6059771f","schema_version":"1.0","event_id":"sha256:f31a5c9b154aa3cd8da1f476673b4c99eb0e6b3f39c5f01f3591a66c6059771f"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2019:BH7OOWBF2IUSVGLUN7OHJ53A46","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Tensile Strength of Porous Dust Aggregates","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.EP","authors_text":"Akimasa Kataoka, Hidekazu Tanaka, Misako Tatsuuma","submitted_at":"2019-02-22T04:11:40Z","abstract_excerpt":"Comets are thought to have information about the formation process of our solar system. Recently, detailed information about comet 67P/Churyumov-Gerasimenko has been found by a spacecraft mission Rosetta. It is remarkable that its tensile strength was estimated. In this paper, we measure and formulate the tensile strength of porous dust aggregates using numerical simulations, motivated by porous dust aggregation model of planetesimal formation. We perform three-dimensional numerical simulations using a monomer interaction model with periodic boundary condition. We stretch out a dust aggregate "},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1902.08356","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":"2026-05-17T23:49:01Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"Iv6kDDY0aPT7SiqiQ2BE5422oVGHH8sydtrZpyq2cMZm/XAPf72KB+AXXQOi/kxZU91M15Qrla1EJt5UGZvJDw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-11T14:35:21.711269Z"},"content_sha256":"b88747fc066a7f3e10e14a40f1a6c1db8cc558020e8811610fa7e32e42e15f82","schema_version":"1.0","event_id":"sha256:b88747fc066a7f3e10e14a40f1a6c1db8cc558020e8811610fa7e32e42e15f82"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/BH7OOWBF2IUSVGLUN7OHJ53A46/bundle.json","state_url":"https://pith.science/pith/BH7OOWBF2IUSVGLUN7OHJ53A46/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/BH7OOWBF2IUSVGLUN7OHJ53A46/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":"2026-06-11T14:35:21Z","links":{"resolver":"https://pith.science/pith/BH7OOWBF2IUSVGLUN7OHJ53A46","bundle":"https://pith.science/pith/BH7OOWBF2IUSVGLUN7OHJ53A46/bundle.json","state":"https://pith.science/pith/BH7OOWBF2IUSVGLUN7OHJ53A46/state.json","well_known_bundle":"https://pith.science/.well-known/pith/BH7OOWBF2IUSVGLUN7OHJ53A46/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2019:BH7OOWBF2IUSVGLUN7OHJ53A46","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":"d4768318153a79ab017d7a0f2e20888362af22a146b4c7873f16705b897080e6","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.EP","submitted_at":"2019-02-22T04:11:40Z","title_canon_sha256":"6dc0941b6b0364052f7b9d271f672eb9db9580fb2f41c6d52d612d5f12e525ae"},"schema_version":"1.0","source":{"id":"1902.08356","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1902.08356","created_at":"2026-05-17T23:49:01Z"},{"alias_kind":"arxiv_version","alias_value":"1902.08356v1","created_at":"2026-05-17T23:49:01Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1902.08356","created_at":"2026-05-17T23:49:01Z"},{"alias_kind":"pith_short_12","alias_value":"BH7OOWBF2IUS","created_at":"2026-05-18T12:33:12Z"},{"alias_kind":"pith_short_16","alias_value":"BH7OOWBF2IUSVGLU","created_at":"2026-05-18T12:33:12Z"},{"alias_kind":"pith_short_8","alias_value":"BH7OOWBF","created_at":"2026-05-18T12:33:12Z"}],"graph_snapshots":[{"event_id":"sha256:b88747fc066a7f3e10e14a40f1a6c1db8cc558020e8811610fa7e32e42e15f82","target":"graph","created_at":"2026-05-17T23:49:01Z","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":"Comets are thought to have information about the formation process of our solar system. Recently, detailed information about comet 67P/Churyumov-Gerasimenko has been found by a spacecraft mission Rosetta. It is remarkable that its tensile strength was estimated. In this paper, we measure and formulate the tensile strength of porous dust aggregates using numerical simulations, motivated by porous dust aggregation model of planetesimal formation. We perform three-dimensional numerical simulations using a monomer interaction model with periodic boundary condition. We stretch out a dust aggregate ","authors_text":"Akimasa Kataoka, Hidekazu Tanaka, Misako Tatsuuma","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.EP","submitted_at":"2019-02-22T04:11:40Z","title":"Tensile Strength of Porous Dust Aggregates"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1902.08356","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:f31a5c9b154aa3cd8da1f476673b4c99eb0e6b3f39c5f01f3591a66c6059771f","target":"record","created_at":"2026-05-17T23:49:01Z","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":"d4768318153a79ab017d7a0f2e20888362af22a146b4c7873f16705b897080e6","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.EP","submitted_at":"2019-02-22T04:11:40Z","title_canon_sha256":"6dc0941b6b0364052f7b9d271f672eb9db9580fb2f41c6d52d612d5f12e525ae"},"schema_version":"1.0","source":{"id":"1902.08356","kind":"arxiv","version":1}},"canonical_sha256":"09fee75825d2292a99746fdc74f760e799fcc93d848f02bef8f2952c80b8d32f","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"09fee75825d2292a99746fdc74f760e799fcc93d848f02bef8f2952c80b8d32f","first_computed_at":"2026-05-17T23:49:01.848434Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-17T23:49:01.848434Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"eNQXMHo0xpPlTvf6o+bhJYAj/sEvr1QnDVA7cnTdOYsNGJRzzCuEdq4Ic7b9nHB3SEUyyt7gAnMod1PKBdCiDw==","signature_status":"signed_v1","signed_at":"2026-05-17T23:49:01.848830Z","signed_message":"canonical_sha256_bytes"},"source_id":"1902.08356","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:f31a5c9b154aa3cd8da1f476673b4c99eb0e6b3f39c5f01f3591a66c6059771f","sha256:b88747fc066a7f3e10e14a40f1a6c1db8cc558020e8811610fa7e32e42e15f82"],"state_sha256":"22469e12ba5c6f8a4a5ce64a6a53a43cb1f8f7fce0ea2394ba785a959bddc42c"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"uGN71n9RNVaTtgYov1kKq+QVgueOKT0G7sKH0h3d4Iu/TJqFa4A+/xPcc5OIi6aIkbBt2LaZo2RaOE6xw3BrBQ==","signed_message":"bundle_sha256_bytes","signed_at":"2026-06-11T14:35:21.713364Z","bundle_sha256":"fb3532ba88193e67ef640f2966d38670820cf3a45c2cbb5a64b97bb85c9eb9f6"}}