{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2014:SJ6HGXKJDJE7A5FW2RVJKSFEDW","short_pith_number":"pith:SJ6HGXKJ","canonical_record":{"source":{"id":"1406.6691","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.IM","submitted_at":"2014-06-25T20:00:16Z","cross_cats_sorted":[],"title_canon_sha256":"0393a51aa45e325e0b2e6ffbbe31e572fb2328cf2061798868bd6b9c47a9ae5a","abstract_canon_sha256":"8df7b1b35b742483ce146e8f4605d44e71c18bcc645c4cd238ca042773724b37"},"schema_version":"1.0"},"canonical_sha256":"927c735d491a49f074b6d46a9548a41db2f556cd12ad7247d939cc0ddc806cb7","source":{"kind":"arxiv","id":"1406.6691","version":2},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1406.6691","created_at":"2026-05-18T02:26:31Z"},{"alias_kind":"arxiv_version","alias_value":"1406.6691v2","created_at":"2026-05-18T02:26:31Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1406.6691","created_at":"2026-05-18T02:26:31Z"},{"alias_kind":"pith_short_12","alias_value":"SJ6HGXKJDJE7","created_at":"2026-05-18T12:28:49Z"},{"alias_kind":"pith_short_16","alias_value":"SJ6HGXKJDJE7A5FW","created_at":"2026-05-18T12:28:49Z"},{"alias_kind":"pith_short_8","alias_value":"SJ6HGXKJ","created_at":"2026-05-18T12:28:49Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2014:SJ6HGXKJDJE7A5FW2RVJKSFEDW","target":"record","payload":{"canonical_record":{"source":{"id":"1406.6691","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.IM","submitted_at":"2014-06-25T20:00:16Z","cross_cats_sorted":[],"title_canon_sha256":"0393a51aa45e325e0b2e6ffbbe31e572fb2328cf2061798868bd6b9c47a9ae5a","abstract_canon_sha256":"8df7b1b35b742483ce146e8f4605d44e71c18bcc645c4cd238ca042773724b37"},"schema_version":"1.0"},"canonical_sha256":"927c735d491a49f074b6d46a9548a41db2f556cd12ad7247d939cc0ddc806cb7","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T02:26:31.730499Z","signature_b64":"MYrOyUZBelrwk8xpmQVIpIPocQzcDoNm/51OQlB+HP7dtbucNxMYjZhl4DEIjhyH4pxxQmfKfUHyFv08bxlDBw==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"927c735d491a49f074b6d46a9548a41db2f556cd12ad7247d939cc0ddc806cb7","last_reissued_at":"2026-05-18T02:26:31.730114Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T02:26:31.730114Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1406.6691","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":"2026-05-18T02:26:31Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"iNKYB98eZa34+yywgXnxeDSl5fRallnyG+sRFhYa1oOKoz07rv2te9ZYLtijKANxn+OydVoC0fiVS7I/O6tLCA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-02T03:20:51.264384Z"},"content_sha256":"6f6d3468354ab019a3b691ee0cabee64219240d64c5585ddf568507af246b02c","schema_version":"1.0","event_id":"sha256:6f6d3468354ab019a3b691ee0cabee64219240d64c5585ddf568507af246b02c"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2014:SJ6HGXKJDJE7A5FW2RVJKSFEDW","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"VADER: A Flexible, Robust, Open-Source Code for Simulating Viscous Thin Accretion Disks","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.IM","authors_text":"John C. Forbes, Mark R. Krumholz","submitted_at":"2014-06-25T20:00:16Z","abstract_excerpt":"The evolution of thin axisymmetric viscous accretion disks is a classic problem in astrophysics. While models based on this simplified geometry provide only approximations to the true processes of instability-driven mass and angular momentum transport, their simplicity makes them invaluable tools for both semi-analytic modeling and simulations of long-term evolution where two- or three-dimensional calculations are too computationally costly. Despite the utility of these models, the only publicly-available frameworks for simulating them are rather specialized and non-general. Here we describe a"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1406.6691","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":"2026-05-18T02:26:31Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"1ILKX9Vv9m166XH2u3lUo0OZd017fgcIUuXrFU0pXcBmmZxPU0odPaPcHtIK3VG+gtSUVNofmSiMe1EJdFlNCQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-02T03:20:51.265088Z"},"content_sha256":"cb9ace1de180f132af81684bd55518f7add81bca37fc1e459bf7317555ab8d5e","schema_version":"1.0","event_id":"sha256:cb9ace1de180f132af81684bd55518f7add81bca37fc1e459bf7317555ab8d5e"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/SJ6HGXKJDJE7A5FW2RVJKSFEDW/bundle.json","state_url":"https://pith.science/pith/SJ6HGXKJDJE7A5FW2RVJKSFEDW/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/SJ6HGXKJDJE7A5FW2RVJKSFEDW/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":"2026-06-02T03:20:51Z","links":{"resolver":"https://pith.science/pith/SJ6HGXKJDJE7A5FW2RVJKSFEDW","bundle":"https://pith.science/pith/SJ6HGXKJDJE7A5FW2RVJKSFEDW/bundle.json","state":"https://pith.science/pith/SJ6HGXKJDJE7A5FW2RVJKSFEDW/state.json","well_known_bundle":"https://pith.science/.well-known/pith/SJ6HGXKJDJE7A5FW2RVJKSFEDW/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2014:SJ6HGXKJDJE7A5FW2RVJKSFEDW","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":"8df7b1b35b742483ce146e8f4605d44e71c18bcc645c4cd238ca042773724b37","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.IM","submitted_at":"2014-06-25T20:00:16Z","title_canon_sha256":"0393a51aa45e325e0b2e6ffbbe31e572fb2328cf2061798868bd6b9c47a9ae5a"},"schema_version":"1.0","source":{"id":"1406.6691","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1406.6691","created_at":"2026-05-18T02:26:31Z"},{"alias_kind":"arxiv_version","alias_value":"1406.6691v2","created_at":"2026-05-18T02:26:31Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1406.6691","created_at":"2026-05-18T02:26:31Z"},{"alias_kind":"pith_short_12","alias_value":"SJ6HGXKJDJE7","created_at":"2026-05-18T12:28:49Z"},{"alias_kind":"pith_short_16","alias_value":"SJ6HGXKJDJE7A5FW","created_at":"2026-05-18T12:28:49Z"},{"alias_kind":"pith_short_8","alias_value":"SJ6HGXKJ","created_at":"2026-05-18T12:28:49Z"}],"graph_snapshots":[{"event_id":"sha256:cb9ace1de180f132af81684bd55518f7add81bca37fc1e459bf7317555ab8d5e","target":"graph","created_at":"2026-05-18T02:26:31Z","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":"The evolution of thin axisymmetric viscous accretion disks is a classic problem in astrophysics. While models based on this simplified geometry provide only approximations to the true processes of instability-driven mass and angular momentum transport, their simplicity makes them invaluable tools for both semi-analytic modeling and simulations of long-term evolution where two- or three-dimensional calculations are too computationally costly. Despite the utility of these models, the only publicly-available frameworks for simulating them are rather specialized and non-general. Here we describe a","authors_text":"John C. Forbes, Mark R. Krumholz","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.IM","submitted_at":"2014-06-25T20:00:16Z","title":"VADER: A Flexible, Robust, Open-Source Code for Simulating Viscous Thin Accretion Disks"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1406.6691","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":"sha256:6f6d3468354ab019a3b691ee0cabee64219240d64c5585ddf568507af246b02c","target":"record","created_at":"2026-05-18T02:26:31Z","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":"8df7b1b35b742483ce146e8f4605d44e71c18bcc645c4cd238ca042773724b37","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.IM","submitted_at":"2014-06-25T20:00:16Z","title_canon_sha256":"0393a51aa45e325e0b2e6ffbbe31e572fb2328cf2061798868bd6b9c47a9ae5a"},"schema_version":"1.0","source":{"id":"1406.6691","kind":"arxiv","version":2}},"canonical_sha256":"927c735d491a49f074b6d46a9548a41db2f556cd12ad7247d939cc0ddc806cb7","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"927c735d491a49f074b6d46a9548a41db2f556cd12ad7247d939cc0ddc806cb7","first_computed_at":"2026-05-18T02:26:31.730114Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T02:26:31.730114Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"MYrOyUZBelrwk8xpmQVIpIPocQzcDoNm/51OQlB+HP7dtbucNxMYjZhl4DEIjhyH4pxxQmfKfUHyFv08bxlDBw==","signature_status":"signed_v1","signed_at":"2026-05-18T02:26:31.730499Z","signed_message":"canonical_sha256_bytes"},"source_id":"1406.6691","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:6f6d3468354ab019a3b691ee0cabee64219240d64c5585ddf568507af246b02c","sha256:cb9ace1de180f132af81684bd55518f7add81bca37fc1e459bf7317555ab8d5e"],"state_sha256":"85f1659dd790922188075e9ed243e6b91f55eff3647f0501d3165947e0a51787"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"/gElkjGyujLmzP5w/orMyMT+8JQeI1lSlHPQcng0bsEWm5vqLeFURLfLXhv09ALYl/r/AHcvzbVM8KIHZDgdBA==","signed_message":"bundle_sha256_bytes","signed_at":"2026-06-02T03:20:51.267002Z","bundle_sha256":"7a0cf771cf08763fbf509d8730f534ad5ab1b824638f0d0344465b7890a8f06e"}}