{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2022:2DQHWT4GBOBHYY2L34MHAF7HGY","short_pith_number":"pith:2DQHWT4G","canonical_record":{"source":{"id":"2212.06538","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.LG","submitted_at":"2022-12-13T12:42:35Z","cross_cats_sorted":[],"title_canon_sha256":"c41573dd741bba5be126c369936eaea101077efaaba3c7252d50b7570e7b68c9","abstract_canon_sha256":"1de5804a9bc8a3678bff89849d07042a0002787c9ab05df8b7981c8f229280e9"},"schema_version":"1.0"},"canonical_sha256":"d0e07b4f860b827c634bdf187017e7362a749156538653cb8692f3f0da1e0cde","source":{"kind":"arxiv","id":"2212.06538","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2212.06538","created_at":"2026-07-05T05:24:51Z"},{"alias_kind":"arxiv_version","alias_value":"2212.06538v1","created_at":"2026-07-05T05:24:51Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2212.06538","created_at":"2026-07-05T05:24:51Z"},{"alias_kind":"pith_short_12","alias_value":"2DQHWT4GBOBH","created_at":"2026-07-05T05:24:51Z"},{"alias_kind":"pith_short_16","alias_value":"2DQHWT4GBOBHYY2L","created_at":"2026-07-05T05:24:51Z"},{"alias_kind":"pith_short_8","alias_value":"2DQHWT4G","created_at":"2026-07-05T05:24:51Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2022:2DQHWT4GBOBHYY2L34MHAF7HGY","target":"record","payload":{"canonical_record":{"source":{"id":"2212.06538","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.LG","submitted_at":"2022-12-13T12:42:35Z","cross_cats_sorted":[],"title_canon_sha256":"c41573dd741bba5be126c369936eaea101077efaaba3c7252d50b7570e7b68c9","abstract_canon_sha256":"1de5804a9bc8a3678bff89849d07042a0002787c9ab05df8b7981c8f229280e9"},"schema_version":"1.0"},"canonical_sha256":"d0e07b4f860b827c634bdf187017e7362a749156538653cb8692f3f0da1e0cde","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-05T05:24:51.623840Z","signature_b64":"BBwZRGWVNKVT/FQV1WMV5j/bS+Cx5yC1hxWO6gohobbfRupVx4kkRIukgvTu6kyOA5O0UfCGD0qp5lW7uZ2ZBg==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"d0e07b4f860b827c634bdf187017e7362a749156538653cb8692f3f0da1e0cde","last_reissued_at":"2026-07-05T05:24:51.623447Z","signature_status":"signed_v1","first_computed_at":"2026-07-05T05:24:51.623447Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"2212.06538","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":"2026-07-05T05:24:51Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"dhyKt4L+Xq8QtL6+4pSBg429+VT61EW251WHaTAE2B9Cj22s5aRId8LXOlVqokq7RT8u6kLdKvqCdIMOK4/7AQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-18T17:17:57.131635Z"},"content_sha256":"24e7f8b7c746d0b5c1d55b11cdf0213df17ef5835aec5c26034972d68ca31cb2","schema_version":"1.0","event_id":"sha256:24e7f8b7c746d0b5c1d55b11cdf0213df17ef5835aec5c26034972d68ca31cb2"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2022:2DQHWT4GBOBHYY2L34MHAF7HGY","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Leave Graphs Alone: Addressing Over-Squashing without Rewiring","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"cs.LG","authors_text":"Alessio Micheli, Domenico Tortorella","submitted_at":"2022-12-13T12:42:35Z","abstract_excerpt":"Recent works have investigated the role of graph bottlenecks in preventing long-range information propagation in message-passing graph neural networks, causing the so-called `over-squashing' phenomenon. As a remedy, graph rewiring mechanisms have been proposed as preprocessing steps. Graph Echo State Networks (GESNs) are a reservoir computing model for graphs, where node embeddings are recursively computed by an untrained message-passing function. In this paper, we show that GESNs can achieve a significantly better accuracy on six heterophilic node classification tasks without altering the gra"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2212.06538","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/2212.06538/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":"2026-07-05T05:24:51Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"0lGNMcJ4+kj+I/6Nf1wsZXA8WwuYlfr790uIM8uIENcH5All3e0uMVB8WC0UYRXxc2HY1gPiqa8EUk6Ys2vZAw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-18T17:17:57.132224Z"},"content_sha256":"c0a27f0c7b76314e74e1a24584cc6470f03ffe93c873caaace54f801c3314a17","schema_version":"1.0","event_id":"sha256:c0a27f0c7b76314e74e1a24584cc6470f03ffe93c873caaace54f801c3314a17"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/2DQHWT4GBOBHYY2L34MHAF7HGY/bundle.json","state_url":"https://pith.science/pith/2DQHWT4GBOBHYY2L34MHAF7HGY/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/2DQHWT4GBOBHYY2L34MHAF7HGY/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":"2026-08-18T17:17:57Z","links":{"resolver":"https://pith.science/pith/2DQHWT4GBOBHYY2L34MHAF7HGY","bundle":"https://pith.science/pith/2DQHWT4GBOBHYY2L34MHAF7HGY/bundle.json","state":"https://pith.science/pith/2DQHWT4GBOBHYY2L34MHAF7HGY/state.json","well_known_bundle":"https://pith.science/.well-known/pith/2DQHWT4GBOBHYY2L34MHAF7HGY/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2022:2DQHWT4GBOBHYY2L34MHAF7HGY","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":"1de5804a9bc8a3678bff89849d07042a0002787c9ab05df8b7981c8f229280e9","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.LG","submitted_at":"2022-12-13T12:42:35Z","title_canon_sha256":"c41573dd741bba5be126c369936eaea101077efaaba3c7252d50b7570e7b68c9"},"schema_version":"1.0","source":{"id":"2212.06538","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2212.06538","created_at":"2026-07-05T05:24:51Z"},{"alias_kind":"arxiv_version","alias_value":"2212.06538v1","created_at":"2026-07-05T05:24:51Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2212.06538","created_at":"2026-07-05T05:24:51Z"},{"alias_kind":"pith_short_12","alias_value":"2DQHWT4GBOBH","created_at":"2026-07-05T05:24:51Z"},{"alias_kind":"pith_short_16","alias_value":"2DQHWT4GBOBHYY2L","created_at":"2026-07-05T05:24:51Z"},{"alias_kind":"pith_short_8","alias_value":"2DQHWT4G","created_at":"2026-07-05T05:24:51Z"}],"graph_snapshots":[{"event_id":"sha256:c0a27f0c7b76314e74e1a24584cc6470f03ffe93c873caaace54f801c3314a17","target":"graph","created_at":"2026-07-05T05:24:51Z","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/2212.06538/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"Recent works have investigated the role of graph bottlenecks in preventing long-range information propagation in message-passing graph neural networks, causing the so-called `over-squashing' phenomenon. As a remedy, graph rewiring mechanisms have been proposed as preprocessing steps. Graph Echo State Networks (GESNs) are a reservoir computing model for graphs, where node embeddings are recursively computed by an untrained message-passing function. In this paper, we show that GESNs can achieve a significantly better accuracy on six heterophilic node classification tasks without altering the gra","authors_text":"Alessio Micheli, Domenico Tortorella","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.LG","submitted_at":"2022-12-13T12:42:35Z","title":"Leave Graphs Alone: Addressing Over-Squashing without Rewiring"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2212.06538","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":"sha256:24e7f8b7c746d0b5c1d55b11cdf0213df17ef5835aec5c26034972d68ca31cb2","target":"record","created_at":"2026-07-05T05:24:51Z","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":"1de5804a9bc8a3678bff89849d07042a0002787c9ab05df8b7981c8f229280e9","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.LG","submitted_at":"2022-12-13T12:42:35Z","title_canon_sha256":"c41573dd741bba5be126c369936eaea101077efaaba3c7252d50b7570e7b68c9"},"schema_version":"1.0","source":{"id":"2212.06538","kind":"arxiv","version":1}},"canonical_sha256":"d0e07b4f860b827c634bdf187017e7362a749156538653cb8692f3f0da1e0cde","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"d0e07b4f860b827c634bdf187017e7362a749156538653cb8692f3f0da1e0cde","first_computed_at":"2026-07-05T05:24:51.623447Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T05:24:51.623447Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"BBwZRGWVNKVT/FQV1WMV5j/bS+Cx5yC1hxWO6gohobbfRupVx4kkRIukgvTu6kyOA5O0UfCGD0qp5lW7uZ2ZBg==","signature_status":"signed_v1","signed_at":"2026-07-05T05:24:51.623840Z","signed_message":"canonical_sha256_bytes"},"source_id":"2212.06538","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:24e7f8b7c746d0b5c1d55b11cdf0213df17ef5835aec5c26034972d68ca31cb2","sha256:c0a27f0c7b76314e74e1a24584cc6470f03ffe93c873caaace54f801c3314a17"],"state_sha256":"13f3a09540eca845db3802489bbfde5b7bdfd111cd260022cab5f4629e70d5fa"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"y6Ff5Ub9sGs8ua6H6TurbeR1JiFn2Pup55wCjvf1xlQJbZXpbjJx+ZfM7sGtHhawyXNvvX2GAIHacTetsy13AQ==","signed_message":"bundle_sha256_bytes","signed_at":"2026-08-18T17:17:57.138818Z","bundle_sha256":"54b1c32e8fa23904d0f0ab5af0290068b12546a67445cff1b8ddd0c81a48eb18"}}