{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2013:ED6BY2PYXXU5BCBSJMSWX6CD6K","short_pith_number":"pith:ED6BY2PY","canonical_record":{"source":{"id":"1310.6896","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.CO","submitted_at":"2013-10-25T12:46:57Z","cross_cats_sorted":["astro-ph.GA"],"title_canon_sha256":"06dcd37e724d863c53a74895238b33b68ff27d7f475f907cc562c58ddc7b405d","abstract_canon_sha256":"3a3f6d41f8cb3b9a4afe6bbe88a8bc08d99d011372b7c1628b2a7b6786988e4e"},"schema_version":"1.0"},"canonical_sha256":"20fc1c69f8bde9d088324b256bf843f2a76168fe650ca4000f71597abe90b694","source":{"kind":"arxiv","id":"1310.6896","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1310.6896","created_at":"2026-05-18T01:27:54Z"},{"alias_kind":"arxiv_version","alias_value":"1310.6896v1","created_at":"2026-05-18T01:27:54Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1310.6896","created_at":"2026-05-18T01:27:54Z"},{"alias_kind":"pith_short_12","alias_value":"ED6BY2PYXXU5","created_at":"2026-05-18T12:27:43Z"},{"alias_kind":"pith_short_16","alias_value":"ED6BY2PYXXU5BCBS","created_at":"2026-05-18T12:27:43Z"},{"alias_kind":"pith_short_8","alias_value":"ED6BY2PY","created_at":"2026-05-18T12:27:43Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2013:ED6BY2PYXXU5BCBSJMSWX6CD6K","target":"record","payload":{"canonical_record":{"source":{"id":"1310.6896","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.CO","submitted_at":"2013-10-25T12:46:57Z","cross_cats_sorted":["astro-ph.GA"],"title_canon_sha256":"06dcd37e724d863c53a74895238b33b68ff27d7f475f907cc562c58ddc7b405d","abstract_canon_sha256":"3a3f6d41f8cb3b9a4afe6bbe88a8bc08d99d011372b7c1628b2a7b6786988e4e"},"schema_version":"1.0"},"canonical_sha256":"20fc1c69f8bde9d088324b256bf843f2a76168fe650ca4000f71597abe90b694","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T01:27:54.971179Z","signature_b64":"IvyONYOAdiG20G6yUoVZn87h1jNPpgh32xjoOBZd8tPXZvucsr0OzTsRlgpBBovBmmtAAWLjatkd6K+k1aIBDw==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"20fc1c69f8bde9d088324b256bf843f2a76168fe650ca4000f71597abe90b694","last_reissued_at":"2026-05-18T01:27:54.970399Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T01:27:54.970399Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1310.6896","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":"2026-05-18T01:27:54Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"RNQm70XXcOijOkPYgHC/4qud5UKc82sIcUPhH2vwpIK9AXTPaNcRD52H4gPGeiQ+khWt9sRJV06nM+AHXah6BA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-31T06:13:21.498955Z"},"content_sha256":"f26e7ad697df435574ef9c27d1d9a0a52f009f0b540913c5d0953bc771241704","schema_version":"1.0","event_id":"sha256:f26e7ad697df435574ef9c27d1d9a0a52f009f0b540913c5d0953bc771241704"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2013:ED6BY2PYXXU5BCBSJMSWX6CD6K","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Binary Satellite Galaxies","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["astro-ph.GA"],"primary_cat":"astro-ph.CO","authors_text":"Jarah Evslin","submitted_at":"2013-10-25T12:46:57Z","abstract_excerpt":"Suggestions have appeared in the literature that the following five pairs of Milky Way and Andromeda satellite galaxies are gravitationally bound: Draco and Ursa Minor, Leo IV and V, Andromeda I and III, NGC 147 and 185, and the Magellanic clouds. Under the assumption that a given pair is gravitationally bound, the Virial theorem provides an estimate of its total mass and so its instantaneous tidal radius. For all of these pairs except for the Magellanic clouds the resulting total mass is 2 to 4 orders of magnitude higher than that within the half light radius. Furthermore in the case of each "},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1310.6896","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":"2026-05-18T01:27:54Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"Yllj1B2wUrvsYG93yfnkb3/9HMFHSefxLkh9xE93NKBHkJP/jn+XwKYqwOpEBH6FtFLZupaZB/ro3LlpS/aaAQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-31T06:13:21.499304Z"},"content_sha256":"9b844af4d2d5a5a626ccc8b1954ed96a6be97e7f03e818f124b117cfa02f678d","schema_version":"1.0","event_id":"sha256:9b844af4d2d5a5a626ccc8b1954ed96a6be97e7f03e818f124b117cfa02f678d"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/ED6BY2PYXXU5BCBSJMSWX6CD6K/bundle.json","state_url":"https://pith.science/pith/ED6BY2PYXXU5BCBSJMSWX6CD6K/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/ED6BY2PYXXU5BCBSJMSWX6CD6K/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":"2026-05-31T06:13:21Z","links":{"resolver":"https://pith.science/pith/ED6BY2PYXXU5BCBSJMSWX6CD6K","bundle":"https://pith.science/pith/ED6BY2PYXXU5BCBSJMSWX6CD6K/bundle.json","state":"https://pith.science/pith/ED6BY2PYXXU5BCBSJMSWX6CD6K/state.json","well_known_bundle":"https://pith.science/.well-known/pith/ED6BY2PYXXU5BCBSJMSWX6CD6K/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2013:ED6BY2PYXXU5BCBSJMSWX6CD6K","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":"3a3f6d41f8cb3b9a4afe6bbe88a8bc08d99d011372b7c1628b2a7b6786988e4e","cross_cats_sorted":["astro-ph.GA"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.CO","submitted_at":"2013-10-25T12:46:57Z","title_canon_sha256":"06dcd37e724d863c53a74895238b33b68ff27d7f475f907cc562c58ddc7b405d"},"schema_version":"1.0","source":{"id":"1310.6896","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1310.6896","created_at":"2026-05-18T01:27:54Z"},{"alias_kind":"arxiv_version","alias_value":"1310.6896v1","created_at":"2026-05-18T01:27:54Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1310.6896","created_at":"2026-05-18T01:27:54Z"},{"alias_kind":"pith_short_12","alias_value":"ED6BY2PYXXU5","created_at":"2026-05-18T12:27:43Z"},{"alias_kind":"pith_short_16","alias_value":"ED6BY2PYXXU5BCBS","created_at":"2026-05-18T12:27:43Z"},{"alias_kind":"pith_short_8","alias_value":"ED6BY2PY","created_at":"2026-05-18T12:27:43Z"}],"graph_snapshots":[{"event_id":"sha256:9b844af4d2d5a5a626ccc8b1954ed96a6be97e7f03e818f124b117cfa02f678d","target":"graph","created_at":"2026-05-18T01:27:54Z","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":"Suggestions have appeared in the literature that the following five pairs of Milky Way and Andromeda satellite galaxies are gravitationally bound: Draco and Ursa Minor, Leo IV and V, Andromeda I and III, NGC 147 and 185, and the Magellanic clouds. Under the assumption that a given pair is gravitationally bound, the Virial theorem provides an estimate of its total mass and so its instantaneous tidal radius. For all of these pairs except for the Magellanic clouds the resulting total mass is 2 to 4 orders of magnitude higher than that within the half light radius. Furthermore in the case of each ","authors_text":"Jarah Evslin","cross_cats":["astro-ph.GA"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.CO","submitted_at":"2013-10-25T12:46:57Z","title":"Binary Satellite Galaxies"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1310.6896","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:f26e7ad697df435574ef9c27d1d9a0a52f009f0b540913c5d0953bc771241704","target":"record","created_at":"2026-05-18T01:27:54Z","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":"3a3f6d41f8cb3b9a4afe6bbe88a8bc08d99d011372b7c1628b2a7b6786988e4e","cross_cats_sorted":["astro-ph.GA"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.CO","submitted_at":"2013-10-25T12:46:57Z","title_canon_sha256":"06dcd37e724d863c53a74895238b33b68ff27d7f475f907cc562c58ddc7b405d"},"schema_version":"1.0","source":{"id":"1310.6896","kind":"arxiv","version":1}},"canonical_sha256":"20fc1c69f8bde9d088324b256bf843f2a76168fe650ca4000f71597abe90b694","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"20fc1c69f8bde9d088324b256bf843f2a76168fe650ca4000f71597abe90b694","first_computed_at":"2026-05-18T01:27:54.970399Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T01:27:54.970399Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"IvyONYOAdiG20G6yUoVZn87h1jNPpgh32xjoOBZd8tPXZvucsr0OzTsRlgpBBovBmmtAAWLjatkd6K+k1aIBDw==","signature_status":"signed_v1","signed_at":"2026-05-18T01:27:54.971179Z","signed_message":"canonical_sha256_bytes"},"source_id":"1310.6896","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:f26e7ad697df435574ef9c27d1d9a0a52f009f0b540913c5d0953bc771241704","sha256:9b844af4d2d5a5a626ccc8b1954ed96a6be97e7f03e818f124b117cfa02f678d"],"state_sha256":"3c1a85f8fc47b57d98b75578c983270defc020a8f0abdead886919684079780f"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"Oj8wH8KkwOYlgU6OG+a/lD1tWvbTFPricZiOE0OdDBZCMJNEP9Mmspz9Ngt+iBqQSZNXN+FDQQGuDUUp/JGTBA==","signed_message":"bundle_sha256_bytes","signed_at":"2026-05-31T06:13:21.501657Z","bundle_sha256":"4ab5d34210fd4456a677f2097730c2fc58c785566068a2ae56a6b3b29f0de196"}}