{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2014:F5GJJRIXLWZQZTP5RRIW3XXWB4","short_pith_number":"pith:F5GJJRIX","canonical_record":{"source":{"id":"1501.00017","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.CO","submitted_at":"2014-12-30T21:01:26Z","cross_cats_sorted":["hep-ph","hep-th"],"title_canon_sha256":"6472a3c6f3977ccd5253f8228e32eb4a4a22bf600d5683f9dc16ad38b8cb7031","abstract_canon_sha256":"773b73abcb9ddbdffcacde2fcfe4db80b8c41709c7d58af89c5c7cf2f5e5b286"},"schema_version":"1.0"},"canonical_sha256":"2f4c94c5175db30ccdfd8c516ddef60f104c2874166a358585d81baf221137fd","source":{"kind":"arxiv","id":"1501.00017","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1501.00017","created_at":"2026-05-18T02:03:34Z"},{"alias_kind":"arxiv_version","alias_value":"1501.00017v1","created_at":"2026-05-18T02:03:34Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1501.00017","created_at":"2026-05-18T02:03:34Z"},{"alias_kind":"pith_short_12","alias_value":"F5GJJRIXLWZQ","created_at":"2026-05-18T12:28:28Z"},{"alias_kind":"pith_short_16","alias_value":"F5GJJRIXLWZQZTP5","created_at":"2026-05-18T12:28:28Z"},{"alias_kind":"pith_short_8","alias_value":"F5GJJRIX","created_at":"2026-05-18T12:28:28Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2014:F5GJJRIXLWZQZTP5RRIW3XXWB4","target":"record","payload":{"canonical_record":{"source":{"id":"1501.00017","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.CO","submitted_at":"2014-12-30T21:01:26Z","cross_cats_sorted":["hep-ph","hep-th"],"title_canon_sha256":"6472a3c6f3977ccd5253f8228e32eb4a4a22bf600d5683f9dc16ad38b8cb7031","abstract_canon_sha256":"773b73abcb9ddbdffcacde2fcfe4db80b8c41709c7d58af89c5c7cf2f5e5b286"},"schema_version":"1.0"},"canonical_sha256":"2f4c94c5175db30ccdfd8c516ddef60f104c2874166a358585d81baf221137fd","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T02:03:34.834082Z","signature_b64":"R2QY4HikM+CX1xA+/bu3rvLzAvFWWc897g5eUnvwoTZR9lHnQov2jK9YxaAfJPznFG9oQtHgtR+UbCy2QEKsCQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"2f4c94c5175db30ccdfd8c516ddef60f104c2874166a358585d81baf221137fd","last_reissued_at":"2026-05-18T02:03:34.833280Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T02:03:34.833280Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1501.00017","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":"2026-05-18T02:03:34Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"ejr3ot/inSMKRr0zmtkVw/HnxCvLrLXuDfm8ZAF9HdmyE6ztba668y4D7FfCK0VuJgU6a04Ow74Oc8zRigP+Cg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-02T11:51:43.392512Z"},"content_sha256":"906a28f82e321aa454fae731e637d8ff34ca01911caa7acba5d95710cc63a616","schema_version":"1.0","event_id":"sha256:906a28f82e321aa454fae731e637d8ff34ca01911caa7acba5d95710cc63a616"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2014:F5GJJRIXLWZQZTP5RRIW3XXWB4","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Supermassive Black Holes from Ultra-Strongly Self-Interacting Dark Matter","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["hep-ph","hep-th"],"primary_cat":"astro-ph.CO","authors_text":"David N. Spergel, Jason Pollack, Paul J. Steinhardt","submitted_at":"2014-12-30T21:01:26Z","abstract_excerpt":"We consider the cosmological consequences if a small fraction ($f\\lesssim 0.1$) of the dark matter is ultra-strongly self-interacting, with an elastic self-interaction cross-section per unit mass $\\sigma\\gg1\\ \\mathrm{cm^{2}/g}$. This possibility evades all current constraints that assume that the self-interacting component makes up the majority of the dark matter. Nevertheless, even a small fraction of ultra-strongly self-interacting dark matter (uSIDM) can have observable consequences on astrophysical scales. In particular, the uSIDM subcomponent can undergo gravothermal collapse and form see"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1501.00017","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":"2026-05-18T02:03:34Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"yMQNWT+wRhKea5oGnJvyTn7Vcqd3M0+EHRYjmkUq7ZupWOTotvRbR03wliS87Ix8pDuHNMU6umR52R+QixjkBA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-02T11:51:43.393195Z"},"content_sha256":"697e600f2c5bc70c3d596652a8e0b02ae993c4c1ed2cbd49aaa3b077b97aaa9a","schema_version":"1.0","event_id":"sha256:697e600f2c5bc70c3d596652a8e0b02ae993c4c1ed2cbd49aaa3b077b97aaa9a"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/F5GJJRIXLWZQZTP5RRIW3XXWB4/bundle.json","state_url":"https://pith.science/pith/F5GJJRIXLWZQZTP5RRIW3XXWB4/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/F5GJJRIXLWZQZTP5RRIW3XXWB4/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":"2026-06-02T11:51:43Z","links":{"resolver":"https://pith.science/pith/F5GJJRIXLWZQZTP5RRIW3XXWB4","bundle":"https://pith.science/pith/F5GJJRIXLWZQZTP5RRIW3XXWB4/bundle.json","state":"https://pith.science/pith/F5GJJRIXLWZQZTP5RRIW3XXWB4/state.json","well_known_bundle":"https://pith.science/.well-known/pith/F5GJJRIXLWZQZTP5RRIW3XXWB4/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2014:F5GJJRIXLWZQZTP5RRIW3XXWB4","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":"773b73abcb9ddbdffcacde2fcfe4db80b8c41709c7d58af89c5c7cf2f5e5b286","cross_cats_sorted":["hep-ph","hep-th"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.CO","submitted_at":"2014-12-30T21:01:26Z","title_canon_sha256":"6472a3c6f3977ccd5253f8228e32eb4a4a22bf600d5683f9dc16ad38b8cb7031"},"schema_version":"1.0","source":{"id":"1501.00017","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1501.00017","created_at":"2026-05-18T02:03:34Z"},{"alias_kind":"arxiv_version","alias_value":"1501.00017v1","created_at":"2026-05-18T02:03:34Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1501.00017","created_at":"2026-05-18T02:03:34Z"},{"alias_kind":"pith_short_12","alias_value":"F5GJJRIXLWZQ","created_at":"2026-05-18T12:28:28Z"},{"alias_kind":"pith_short_16","alias_value":"F5GJJRIXLWZQZTP5","created_at":"2026-05-18T12:28:28Z"},{"alias_kind":"pith_short_8","alias_value":"F5GJJRIX","created_at":"2026-05-18T12:28:28Z"}],"graph_snapshots":[{"event_id":"sha256:697e600f2c5bc70c3d596652a8e0b02ae993c4c1ed2cbd49aaa3b077b97aaa9a","target":"graph","created_at":"2026-05-18T02:03:34Z","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":"We consider the cosmological consequences if a small fraction ($f\\lesssim 0.1$) of the dark matter is ultra-strongly self-interacting, with an elastic self-interaction cross-section per unit mass $\\sigma\\gg1\\ \\mathrm{cm^{2}/g}$. This possibility evades all current constraints that assume that the self-interacting component makes up the majority of the dark matter. Nevertheless, even a small fraction of ultra-strongly self-interacting dark matter (uSIDM) can have observable consequences on astrophysical scales. In particular, the uSIDM subcomponent can undergo gravothermal collapse and form see","authors_text":"David N. Spergel, Jason Pollack, Paul J. Steinhardt","cross_cats":["hep-ph","hep-th"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.CO","submitted_at":"2014-12-30T21:01:26Z","title":"Supermassive Black Holes from Ultra-Strongly Self-Interacting Dark Matter"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1501.00017","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":"sha256:906a28f82e321aa454fae731e637d8ff34ca01911caa7acba5d95710cc63a616","target":"record","created_at":"2026-05-18T02:03:34Z","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":"773b73abcb9ddbdffcacde2fcfe4db80b8c41709c7d58af89c5c7cf2f5e5b286","cross_cats_sorted":["hep-ph","hep-th"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.CO","submitted_at":"2014-12-30T21:01:26Z","title_canon_sha256":"6472a3c6f3977ccd5253f8228e32eb4a4a22bf600d5683f9dc16ad38b8cb7031"},"schema_version":"1.0","source":{"id":"1501.00017","kind":"arxiv","version":1}},"canonical_sha256":"2f4c94c5175db30ccdfd8c516ddef60f104c2874166a358585d81baf221137fd","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"2f4c94c5175db30ccdfd8c516ddef60f104c2874166a358585d81baf221137fd","first_computed_at":"2026-05-18T02:03:34.833280Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T02:03:34.833280Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"R2QY4HikM+CX1xA+/bu3rvLzAvFWWc897g5eUnvwoTZR9lHnQov2jK9YxaAfJPznFG9oQtHgtR+UbCy2QEKsCQ==","signature_status":"signed_v1","signed_at":"2026-05-18T02:03:34.834082Z","signed_message":"canonical_sha256_bytes"},"source_id":"1501.00017","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:906a28f82e321aa454fae731e637d8ff34ca01911caa7acba5d95710cc63a616","sha256:697e600f2c5bc70c3d596652a8e0b02ae993c4c1ed2cbd49aaa3b077b97aaa9a"],"state_sha256":"6b9825866b8c805625e3b3f7502c69512cf4b76be7bf39374e74e56133482ecb"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"cmwdQQXrO46ERj7khXPnlg2Jn0/uiWU5Xz+I7VMR2psIIQ5eAVjppz4jyeN1BW8g0qifaYMYDhNnAq9d4tPhDg==","signed_message":"bundle_sha256_bytes","signed_at":"2026-06-02T11:51:43.395607Z","bundle_sha256":"d99ee5d7e39ddde316ec85097cb2eef3c95a9e660fa76f34b51a4bdeff474855"}}