{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2016:DFDGWCVEN2NZYO526YFKDAKSHS","short_pith_number":"pith:DFDGWCVE","canonical_record":{"source":{"id":"1611.02517","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.IM","submitted_at":"2016-11-08T13:50:57Z","cross_cats_sorted":["astro-ph.GA"],"title_canon_sha256":"9bc9338596e40130e8b8500d4c6b1f697a9cbba88a7b1f1a4c97e1a6763f5b90","abstract_canon_sha256":"2464eed5f8061ac63381a7ff673a302cb687dfd931815f2b6646cc27fef37dc9"},"schema_version":"1.0"},"canonical_sha256":"19466b0aa46e9b9c3bbaf60aa181523ca2130ad554a1986382abea1750a02bdd","source":{"kind":"arxiv","id":"1611.02517","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1611.02517","created_at":"2026-05-18T00:53:06Z"},{"alias_kind":"arxiv_version","alias_value":"1611.02517v1","created_at":"2026-05-18T00:53:06Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1611.02517","created_at":"2026-05-18T00:53:06Z"},{"alias_kind":"pith_short_12","alias_value":"DFDGWCVEN2NZ","created_at":"2026-05-18T12:30:12Z"},{"alias_kind":"pith_short_16","alias_value":"DFDGWCVEN2NZYO52","created_at":"2026-05-18T12:30:12Z"},{"alias_kind":"pith_short_8","alias_value":"DFDGWCVE","created_at":"2026-05-18T12:30:12Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2016:DFDGWCVEN2NZYO526YFKDAKSHS","target":"record","payload":{"canonical_record":{"source":{"id":"1611.02517","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.IM","submitted_at":"2016-11-08T13:50:57Z","cross_cats_sorted":["astro-ph.GA"],"title_canon_sha256":"9bc9338596e40130e8b8500d4c6b1f697a9cbba88a7b1f1a4c97e1a6763f5b90","abstract_canon_sha256":"2464eed5f8061ac63381a7ff673a302cb687dfd931815f2b6646cc27fef37dc9"},"schema_version":"1.0"},"canonical_sha256":"19466b0aa46e9b9c3bbaf60aa181523ca2130ad554a1986382abea1750a02bdd","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T00:53:06.902726Z","signature_b64":"9K6x8lo5vCQoiSwu07amAm7MVHWi4p5+IEwiXWjufZwxYOzud5VuPJp8uqm6Ary96w1Ez2C+tq8JBPQfVRsdDg==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"19466b0aa46e9b9c3bbaf60aa181523ca2130ad554a1986382abea1750a02bdd","last_reissued_at":"2026-05-18T00:53:06.902380Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T00:53:06.902380Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1611.02517","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":"2026-05-18T00:53:06Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"3lDkErhKYJaPTjpJlhDdJDvo0XMF6m7bibHUabCqyzwWVYOv06CcAhctg8+eCuE4qXS2ZebbOK/CXZLRckvNAw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-25T11:00:22.814362Z"},"content_sha256":"f3711d1dd3b675d951f9d52d60054614be4068774970a9e3758529cf41edcf87","schema_version":"1.0","event_id":"sha256:f3711d1dd3b675d951f9d52d60054614be4068774970a9e3758529cf41edcf87"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2016:DFDGWCVEN2NZYO526YFKDAKSHS","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Visualising three-dimensional volumetric data with an arbitrary coordinate system","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["astro-ph.GA"],"primary_cat":"astro-ph.IM","authors_text":"Rhys Taylor","submitted_at":"2016-11-08T13:50:57Z","abstract_excerpt":"Astronomical data does not always use Cartesian coordinates. Both all-sky observational data and simulations of rotationally symmetric systems, such as accretion and protoplanetary discs, may use spherical polar or other coordinate systems. Standard displays rely on Cartesian coordinates, but converting non-Cartesian data into Cartesian format causes distortion of the data and loss of detail. I here demonstrate a method using standard techniques from computer graphics that avoids these problems with 3D data in arbitrary coordinate systems. The method adds minimum computational cost to the disp"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1611.02517","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":"2026-05-18T00:53:06Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"FbMz1UQq/3GPwWPkuxyEO2cneEs4yvZhL6vklKaCwQWG1s3zgl+fOMAJ1hcM6RR8uVROQLjWXJB9D2aetSuxCw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-25T11:00:22.815052Z"},"content_sha256":"0b444b7cd948f4cf699c73336180f4897f58c3105073a431fde2e4bea1ab800a","schema_version":"1.0","event_id":"sha256:0b444b7cd948f4cf699c73336180f4897f58c3105073a431fde2e4bea1ab800a"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/DFDGWCVEN2NZYO526YFKDAKSHS/bundle.json","state_url":"https://pith.science/pith/DFDGWCVEN2NZYO526YFKDAKSHS/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/DFDGWCVEN2NZYO526YFKDAKSHS/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":"2026-05-25T11:00:22Z","links":{"resolver":"https://pith.science/pith/DFDGWCVEN2NZYO526YFKDAKSHS","bundle":"https://pith.science/pith/DFDGWCVEN2NZYO526YFKDAKSHS/bundle.json","state":"https://pith.science/pith/DFDGWCVEN2NZYO526YFKDAKSHS/state.json","well_known_bundle":"https://pith.science/.well-known/pith/DFDGWCVEN2NZYO526YFKDAKSHS/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2016:DFDGWCVEN2NZYO526YFKDAKSHS","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":"2464eed5f8061ac63381a7ff673a302cb687dfd931815f2b6646cc27fef37dc9","cross_cats_sorted":["astro-ph.GA"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.IM","submitted_at":"2016-11-08T13:50:57Z","title_canon_sha256":"9bc9338596e40130e8b8500d4c6b1f697a9cbba88a7b1f1a4c97e1a6763f5b90"},"schema_version":"1.0","source":{"id":"1611.02517","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1611.02517","created_at":"2026-05-18T00:53:06Z"},{"alias_kind":"arxiv_version","alias_value":"1611.02517v1","created_at":"2026-05-18T00:53:06Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1611.02517","created_at":"2026-05-18T00:53:06Z"},{"alias_kind":"pith_short_12","alias_value":"DFDGWCVEN2NZ","created_at":"2026-05-18T12:30:12Z"},{"alias_kind":"pith_short_16","alias_value":"DFDGWCVEN2NZYO52","created_at":"2026-05-18T12:30:12Z"},{"alias_kind":"pith_short_8","alias_value":"DFDGWCVE","created_at":"2026-05-18T12:30:12Z"}],"graph_snapshots":[{"event_id":"sha256:0b444b7cd948f4cf699c73336180f4897f58c3105073a431fde2e4bea1ab800a","target":"graph","created_at":"2026-05-18T00:53:06Z","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":"Astronomical data does not always use Cartesian coordinates. Both all-sky observational data and simulations of rotationally symmetric systems, such as accretion and protoplanetary discs, may use spherical polar or other coordinate systems. Standard displays rely on Cartesian coordinates, but converting non-Cartesian data into Cartesian format causes distortion of the data and loss of detail. I here demonstrate a method using standard techniques from computer graphics that avoids these problems with 3D data in arbitrary coordinate systems. The method adds minimum computational cost to the disp","authors_text":"Rhys Taylor","cross_cats":["astro-ph.GA"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.IM","submitted_at":"2016-11-08T13:50:57Z","title":"Visualising three-dimensional volumetric data with an arbitrary coordinate system"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1611.02517","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:f3711d1dd3b675d951f9d52d60054614be4068774970a9e3758529cf41edcf87","target":"record","created_at":"2026-05-18T00:53:06Z","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":"2464eed5f8061ac63381a7ff673a302cb687dfd931815f2b6646cc27fef37dc9","cross_cats_sorted":["astro-ph.GA"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.IM","submitted_at":"2016-11-08T13:50:57Z","title_canon_sha256":"9bc9338596e40130e8b8500d4c6b1f697a9cbba88a7b1f1a4c97e1a6763f5b90"},"schema_version":"1.0","source":{"id":"1611.02517","kind":"arxiv","version":1}},"canonical_sha256":"19466b0aa46e9b9c3bbaf60aa181523ca2130ad554a1986382abea1750a02bdd","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"19466b0aa46e9b9c3bbaf60aa181523ca2130ad554a1986382abea1750a02bdd","first_computed_at":"2026-05-18T00:53:06.902380Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T00:53:06.902380Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"9K6x8lo5vCQoiSwu07amAm7MVHWi4p5+IEwiXWjufZwxYOzud5VuPJp8uqm6Ary96w1Ez2C+tq8JBPQfVRsdDg==","signature_status":"signed_v1","signed_at":"2026-05-18T00:53:06.902726Z","signed_message":"canonical_sha256_bytes"},"source_id":"1611.02517","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:f3711d1dd3b675d951f9d52d60054614be4068774970a9e3758529cf41edcf87","sha256:0b444b7cd948f4cf699c73336180f4897f58c3105073a431fde2e4bea1ab800a"],"state_sha256":"3f63773e9ce5fb9fac7af2d38009898ffd93f44c2cbaf3a596a8da4908182daa"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"BU2qpMK8zcZvEbddE/SRhb9ud5Pf4MAq+AA6HZtDdQKGDIlztTyYYse8hXaHslxvEG0y/nzrz1TgYB3flMDAAA==","signed_message":"bundle_sha256_bytes","signed_at":"2026-05-25T11:00:22.819098Z","bundle_sha256":"414927d576ef52a5eae8b4bcadbc32578f7faf8367212e017d8e32ef5a12d369"}}