{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2020:LYVKJASXJCE2LH7ICVAV3MRFOB","short_pith_number":"pith:LYVKJASX","canonical_record":{"source":{"id":"2002.08268","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2020-02-19T16:26:08Z","cross_cats_sorted":["astro-ph.GA"],"title_canon_sha256":"52618e5c5ef5f58a5c89dd5c4a53b49e6e40683ed4e5e287ae8bdc07f7022243","abstract_canon_sha256":"d83e63bf1ed67e5f4ffbe0f929dd119f34e991c4d1b13ad79e0776f76306a1e6"},"schema_version":"1.0"},"canonical_sha256":"5e2aa482574889a59fe815415db225704633adaaf7403ace5f951fc74f4e057a","source":{"kind":"arxiv","id":"2002.08268","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2002.08268","created_at":"2026-07-05T00:45:23Z"},{"alias_kind":"arxiv_version","alias_value":"2002.08268v1","created_at":"2026-07-05T00:45:23Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2002.08268","created_at":"2026-07-05T00:45:23Z"},{"alias_kind":"pith_short_12","alias_value":"LYVKJASXJCE2","created_at":"2026-07-05T00:45:23Z"},{"alias_kind":"pith_short_16","alias_value":"LYVKJASXJCE2LH7I","created_at":"2026-07-05T00:45:23Z"},{"alias_kind":"pith_short_8","alias_value":"LYVKJASX","created_at":"2026-07-05T00:45:23Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2020:LYVKJASXJCE2LH7ICVAV3MRFOB","target":"record","payload":{"canonical_record":{"source":{"id":"2002.08268","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2020-02-19T16:26:08Z","cross_cats_sorted":["astro-ph.GA"],"title_canon_sha256":"52618e5c5ef5f58a5c89dd5c4a53b49e6e40683ed4e5e287ae8bdc07f7022243","abstract_canon_sha256":"d83e63bf1ed67e5f4ffbe0f929dd119f34e991c4d1b13ad79e0776f76306a1e6"},"schema_version":"1.0"},"canonical_sha256":"5e2aa482574889a59fe815415db225704633adaaf7403ace5f951fc74f4e057a","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-05T00:45:23.832781Z","signature_b64":"9TijnskYVftQYPptQ06EBDNb1z1ii49FlxDT4p8/4EmqOUzcqtErRaEd3d1+zsikJRcfnN5hsjI9MvoEaHWhCg==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"5e2aa482574889a59fe815415db225704633adaaf7403ace5f951fc74f4e057a","last_reissued_at":"2026-07-05T00:45:23.832345Z","signature_status":"signed_v1","first_computed_at":"2026-07-05T00:45:23.832345Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"2002.08268","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":"2026-07-05T00:45:23Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"IkyDij2S7cJIIEAdCOT+USorhC42Z1s3mMgjn7VlrvtpxhbibpHeJ+mGb6guRZrOTbMutil6zMloXFWKkmq7Dg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-07-07T15:50:36.880695Z"},"content_sha256":"33712c07dd4c0de021c433f08bb729ee78a5438f1593b40400c85102d56eba1e","schema_version":"1.0","event_id":"sha256:33712c07dd4c0de021c433f08bb729ee78a5438f1593b40400c85102d56eba1e"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2020:LYVKJASXJCE2LH7ICVAV3MRFOB","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Wind nebulae and supernova remnants of very massive stars","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["astro-ph.GA"],"primary_cat":"astro-ph.SR","authors_text":"3) ((1) Institut fuer Physik und Astronomie, Data Facility (MPCDF), D. M.-A. Meyer (1), Garching, Germany), Germany (2) Max Planck Computing, Germany (3) DESY, M. Petrov (2), M. Pohl (1, Potsdam, Universitaet Potsdam, Zeuthen","submitted_at":"2020-02-19T16:26:08Z","abstract_excerpt":"A very small fraction of (runaway) massive stars have masses exceeding $60$-$70\\, \\rm M_{\\odot}$ and are predicted to evolve as Luminous-Blue-Variable and Wolf-Rayet stars before ending their lives as core-collapse supernovae. Our 2D axisymmetric hydrodynamical simulations explore how a fast wind ($2000\\, \\rm km\\, \\rm s^{-1}$) and high mass-loss rate ($10^{-5}\\, \\rm M_{\\odot}\\, \\rm yr^{-1}$) can impact the morphology of the circumstellar medium. It is shaped as 100 pc-scale wind nebula which can be pierced by the driving star when it supersonically moves with velocity $20$-$40\\, \\rm km\\, \\rm s"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2002.08268","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/2002.08268/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":"2026-07-05T00:45:23Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"mAJ3Do1nkL5y9dbwyjtHF2UlXGPuWOraWwox8hixLuc2ACYuPsKlpzRIN/5tX34KDd3moq0CZDhJQyNWTCqmBg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-07-07T15:50:36.881068Z"},"content_sha256":"679350645c77141341daf9ef6b6e7bbd0a5c1e5a36eda19ceeedc03cdf02ccd9","schema_version":"1.0","event_id":"sha256:679350645c77141341daf9ef6b6e7bbd0a5c1e5a36eda19ceeedc03cdf02ccd9"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/LYVKJASXJCE2LH7ICVAV3MRFOB/bundle.json","state_url":"https://pith.science/pith/LYVKJASXJCE2LH7ICVAV3MRFOB/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/LYVKJASXJCE2LH7ICVAV3MRFOB/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":"2026-07-07T15:50:36Z","links":{"resolver":"https://pith.science/pith/LYVKJASXJCE2LH7ICVAV3MRFOB","bundle":"https://pith.science/pith/LYVKJASXJCE2LH7ICVAV3MRFOB/bundle.json","state":"https://pith.science/pith/LYVKJASXJCE2LH7ICVAV3MRFOB/state.json","well_known_bundle":"https://pith.science/.well-known/pith/LYVKJASXJCE2LH7ICVAV3MRFOB/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2020:LYVKJASXJCE2LH7ICVAV3MRFOB","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":"d83e63bf1ed67e5f4ffbe0f929dd119f34e991c4d1b13ad79e0776f76306a1e6","cross_cats_sorted":["astro-ph.GA"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2020-02-19T16:26:08Z","title_canon_sha256":"52618e5c5ef5f58a5c89dd5c4a53b49e6e40683ed4e5e287ae8bdc07f7022243"},"schema_version":"1.0","source":{"id":"2002.08268","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2002.08268","created_at":"2026-07-05T00:45:23Z"},{"alias_kind":"arxiv_version","alias_value":"2002.08268v1","created_at":"2026-07-05T00:45:23Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2002.08268","created_at":"2026-07-05T00:45:23Z"},{"alias_kind":"pith_short_12","alias_value":"LYVKJASXJCE2","created_at":"2026-07-05T00:45:23Z"},{"alias_kind":"pith_short_16","alias_value":"LYVKJASXJCE2LH7I","created_at":"2026-07-05T00:45:23Z"},{"alias_kind":"pith_short_8","alias_value":"LYVKJASX","created_at":"2026-07-05T00:45:23Z"}],"graph_snapshots":[{"event_id":"sha256:679350645c77141341daf9ef6b6e7bbd0a5c1e5a36eda19ceeedc03cdf02ccd9","target":"graph","created_at":"2026-07-05T00:45:23Z","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/2002.08268/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"A very small fraction of (runaway) massive stars have masses exceeding $60$-$70\\, \\rm M_{\\odot}$ and are predicted to evolve as Luminous-Blue-Variable and Wolf-Rayet stars before ending their lives as core-collapse supernovae. Our 2D axisymmetric hydrodynamical simulations explore how a fast wind ($2000\\, \\rm km\\, \\rm s^{-1}$) and high mass-loss rate ($10^{-5}\\, \\rm M_{\\odot}\\, \\rm yr^{-1}$) can impact the morphology of the circumstellar medium. It is shaped as 100 pc-scale wind nebula which can be pierced by the driving star when it supersonically moves with velocity $20$-$40\\, \\rm km\\, \\rm s","authors_text":"3) ((1) Institut fuer Physik und Astronomie, Data Facility (MPCDF), D. M.-A. Meyer (1), Garching, Germany), Germany (2) Max Planck Computing, Germany (3) DESY, M. Petrov (2), M. Pohl (1, Potsdam, Universitaet Potsdam, Zeuthen","cross_cats":["astro-ph.GA"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2020-02-19T16:26:08Z","title":"Wind nebulae and supernova remnants of very massive stars"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2002.08268","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":"sha256:33712c07dd4c0de021c433f08bb729ee78a5438f1593b40400c85102d56eba1e","target":"record","created_at":"2026-07-05T00:45:23Z","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":"d83e63bf1ed67e5f4ffbe0f929dd119f34e991c4d1b13ad79e0776f76306a1e6","cross_cats_sorted":["astro-ph.GA"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2020-02-19T16:26:08Z","title_canon_sha256":"52618e5c5ef5f58a5c89dd5c4a53b49e6e40683ed4e5e287ae8bdc07f7022243"},"schema_version":"1.0","source":{"id":"2002.08268","kind":"arxiv","version":1}},"canonical_sha256":"5e2aa482574889a59fe815415db225704633adaaf7403ace5f951fc74f4e057a","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"5e2aa482574889a59fe815415db225704633adaaf7403ace5f951fc74f4e057a","first_computed_at":"2026-07-05T00:45:23.832345Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T00:45:23.832345Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"9TijnskYVftQYPptQ06EBDNb1z1ii49FlxDT4p8/4EmqOUzcqtErRaEd3d1+zsikJRcfnN5hsjI9MvoEaHWhCg==","signature_status":"signed_v1","signed_at":"2026-07-05T00:45:23.832781Z","signed_message":"canonical_sha256_bytes"},"source_id":"2002.08268","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:33712c07dd4c0de021c433f08bb729ee78a5438f1593b40400c85102d56eba1e","sha256:679350645c77141341daf9ef6b6e7bbd0a5c1e5a36eda19ceeedc03cdf02ccd9"],"state_sha256":"f89e6d64cc78ed24f970b0c1f4a611daff912ea2dfd8a34a827ddf3a19158bfd"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"OQ4UX1ZAuzhGbtMvTQQtJ3V4sBey1D/LNQ7YsbMwve5hhEhphOC2hBsj0UsAkGKhwb+lNB48mcayOa4TaOPSAQ==","signed_message":"bundle_sha256_bytes","signed_at":"2026-07-07T15:50:36.883075Z","bundle_sha256":"814f9f4b78027bcb0aaf88237873dad51669fbd1cb9b49aede7a9cdbe9d1846f"}}