{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2026:FJX4TI5XIN4WSF7JOGAXSP4TDJ","short_pith_number":"pith:FJX4TI5X","canonical_record":{"source":{"id":"2606.03990","kind":"arxiv","version":1},"metadata":{"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"cs.LG","submitted_at":"2026-06-02T17:59:52Z","cross_cats_sorted":["cs.CL","cs.CV"],"title_canon_sha256":"f366f85512782bdb24fbe995ed8c0cf9521761c768f9604dc70f35434b8c7590","abstract_canon_sha256":"dc70262262d062af1fb3e0e1fab0d2c19f82095f4da1b81ee545501e81fc9de1"},"schema_version":"1.0"},"canonical_sha256":"2a6fc9a3b743796917e97181793f931a63dac4a2e6d42e4b6d4e7cb365476ee2","source":{"kind":"arxiv","id":"2606.03990","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2606.03990","created_at":"2026-06-03T02:06:08Z"},{"alias_kind":"arxiv_version","alias_value":"2606.03990v1","created_at":"2026-06-03T02:06:08Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2606.03990","created_at":"2026-06-03T02:06:08Z"},{"alias_kind":"pith_short_12","alias_value":"FJX4TI5XIN4W","created_at":"2026-06-03T02:06:08Z"},{"alias_kind":"pith_short_16","alias_value":"FJX4TI5XIN4WSF7J","created_at":"2026-06-03T02:06:08Z"},{"alias_kind":"pith_short_8","alias_value":"FJX4TI5X","created_at":"2026-06-03T02:06:08Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2026:FJX4TI5XIN4WSF7JOGAXSP4TDJ","target":"record","payload":{"canonical_record":{"source":{"id":"2606.03990","kind":"arxiv","version":1},"metadata":{"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"cs.LG","submitted_at":"2026-06-02T17:59:52Z","cross_cats_sorted":["cs.CL","cs.CV"],"title_canon_sha256":"f366f85512782bdb24fbe995ed8c0cf9521761c768f9604dc70f35434b8c7590","abstract_canon_sha256":"dc70262262d062af1fb3e0e1fab0d2c19f82095f4da1b81ee545501e81fc9de1"},"schema_version":"1.0"},"canonical_sha256":"2a6fc9a3b743796917e97181793f931a63dac4a2e6d42e4b6d4e7cb365476ee2","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-06-03T02:06:08.909912Z","signature_b64":"Y7yfwX3zQ1h5Qct9HShri3Ulvap3bo7gjFuU+REctZvZfMc1fzZB5gRb/EJP55FhdPJZrnMSTpCI7RE+gJs/Dw==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"2a6fc9a3b743796917e97181793f931a63dac4a2e6d42e4b6d4e7cb365476ee2","last_reissued_at":"2026-06-03T02:06:08.909460Z","signature_status":"signed_v1","first_computed_at":"2026-06-03T02:06:08.909460Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"2606.03990","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":"2026-06-03T02:06:08Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"QBAwH/6AIfSwo+JdUCQGdWVM6AMSQloaTHSLDkYDd+p1KZSAbmSU/VHly9z+uCQ4gXPibeefduXeu1fiPhiGDA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-29T20:57:25.908293Z"},"content_sha256":"c17f935a46006b77ab508752fd54c6e0c216b1a2d02c9be0328fdf545c829616","schema_version":"1.0","event_id":"sha256:c17f935a46006b77ab508752fd54c6e0c216b1a2d02c9be0328fdf545c829616"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2026:FJX4TI5XIN4WSF7JOGAXSP4TDJ","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Neuron Populations Exhibit Divergent Selectivity with Scale","license":"http://creativecommons.org/licenses/by/4.0/","headline":"","cross_cats":["cs.CL","cs.CV"],"primary_cat":"cs.LG","authors_text":"Alexei A. Efros, Amil Dravid, Yasaman Bahri, Yossi Gandelsman","submitted_at":"2026-06-02T17:59:52Z","abstract_excerpt":"We investigate whether neuron populations within neural networks evolve predictably with scale, extending scaling laws beyond macroscopic observables such as loss. To probe this question, we study Rosetta Neurons, a previously characterized class of neurons whose activation patterns are similar across independently trained models (Dravid et al., 2023). In separate analyses of language models up to 30B parameters and vision models up to 5B parameters, we observe that the population of Rosetta Neurons follows a sublinear power law in model size, growing in absolute number but occupying a shrinki"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2606.03990","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/2606.03990/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":"2026-06-03T02:06:08Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"VWt7uOsB8ka3ryD9TDC8xVSSvOVCqptY77E/inFHJRuXXPPNN7b62YW7V3tWWsscdmptAr7FLgSTfzx3o6wwBw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-29T20:57:25.908688Z"},"content_sha256":"4bcef02078d20438febafc11d88f39eed16792a2d93b95dc99c518362f2640a7","schema_version":"1.0","event_id":"sha256:4bcef02078d20438febafc11d88f39eed16792a2d93b95dc99c518362f2640a7"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/FJX4TI5XIN4WSF7JOGAXSP4TDJ/bundle.json","state_url":"https://pith.science/pith/FJX4TI5XIN4WSF7JOGAXSP4TDJ/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/FJX4TI5XIN4WSF7JOGAXSP4TDJ/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":"2026-06-29T20:57:25Z","links":{"resolver":"https://pith.science/pith/FJX4TI5XIN4WSF7JOGAXSP4TDJ","bundle":"https://pith.science/pith/FJX4TI5XIN4WSF7JOGAXSP4TDJ/bundle.json","state":"https://pith.science/pith/FJX4TI5XIN4WSF7JOGAXSP4TDJ/state.json","well_known_bundle":"https://pith.science/.well-known/pith/FJX4TI5XIN4WSF7JOGAXSP4TDJ/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2026:FJX4TI5XIN4WSF7JOGAXSP4TDJ","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":"dc70262262d062af1fb3e0e1fab0d2c19f82095f4da1b81ee545501e81fc9de1","cross_cats_sorted":["cs.CL","cs.CV"],"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"cs.LG","submitted_at":"2026-06-02T17:59:52Z","title_canon_sha256":"f366f85512782bdb24fbe995ed8c0cf9521761c768f9604dc70f35434b8c7590"},"schema_version":"1.0","source":{"id":"2606.03990","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2606.03990","created_at":"2026-06-03T02:06:08Z"},{"alias_kind":"arxiv_version","alias_value":"2606.03990v1","created_at":"2026-06-03T02:06:08Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2606.03990","created_at":"2026-06-03T02:06:08Z"},{"alias_kind":"pith_short_12","alias_value":"FJX4TI5XIN4W","created_at":"2026-06-03T02:06:08Z"},{"alias_kind":"pith_short_16","alias_value":"FJX4TI5XIN4WSF7J","created_at":"2026-06-03T02:06:08Z"},{"alias_kind":"pith_short_8","alias_value":"FJX4TI5X","created_at":"2026-06-03T02:06:08Z"}],"graph_snapshots":[{"event_id":"sha256:4bcef02078d20438febafc11d88f39eed16792a2d93b95dc99c518362f2640a7","target":"graph","created_at":"2026-06-03T02:06:08Z","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/2606.03990/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"We investigate whether neuron populations within neural networks evolve predictably with scale, extending scaling laws beyond macroscopic observables such as loss. To probe this question, we study Rosetta Neurons, a previously characterized class of neurons whose activation patterns are similar across independently trained models (Dravid et al., 2023). In separate analyses of language models up to 30B parameters and vision models up to 5B parameters, we observe that the population of Rosetta Neurons follows a sublinear power law in model size, growing in absolute number but occupying a shrinki","authors_text":"Alexei A. Efros, Amil Dravid, Yasaman Bahri, Yossi Gandelsman","cross_cats":["cs.CL","cs.CV"],"headline":"","license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"cs.LG","submitted_at":"2026-06-02T17:59:52Z","title":"Neuron Populations Exhibit Divergent Selectivity with Scale"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2606.03990","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:c17f935a46006b77ab508752fd54c6e0c216b1a2d02c9be0328fdf545c829616","target":"record","created_at":"2026-06-03T02:06:08Z","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":"dc70262262d062af1fb3e0e1fab0d2c19f82095f4da1b81ee545501e81fc9de1","cross_cats_sorted":["cs.CL","cs.CV"],"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"cs.LG","submitted_at":"2026-06-02T17:59:52Z","title_canon_sha256":"f366f85512782bdb24fbe995ed8c0cf9521761c768f9604dc70f35434b8c7590"},"schema_version":"1.0","source":{"id":"2606.03990","kind":"arxiv","version":1}},"canonical_sha256":"2a6fc9a3b743796917e97181793f931a63dac4a2e6d42e4b6d4e7cb365476ee2","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"2a6fc9a3b743796917e97181793f931a63dac4a2e6d42e4b6d4e7cb365476ee2","first_computed_at":"2026-06-03T02:06:08.909460Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-06-03T02:06:08.909460Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"Y7yfwX3zQ1h5Qct9HShri3Ulvap3bo7gjFuU+REctZvZfMc1fzZB5gRb/EJP55FhdPJZrnMSTpCI7RE+gJs/Dw==","signature_status":"signed_v1","signed_at":"2026-06-03T02:06:08.909912Z","signed_message":"canonical_sha256_bytes"},"source_id":"2606.03990","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:c17f935a46006b77ab508752fd54c6e0c216b1a2d02c9be0328fdf545c829616","sha256:4bcef02078d20438febafc11d88f39eed16792a2d93b95dc99c518362f2640a7"],"state_sha256":"013bf7606713b045a32d3cafc87ed7794fe6506971831fd236c7ba86696bbe9d"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"XYWBTinAMIi80MEwePwsjdUUTYug39GZG8Vs9zmJIMgwVdW7PFMqbEt9WjCK0K0Vkn7VEDtDkGlSUqwYmWMxBg==","signed_message":"bundle_sha256_bytes","signed_at":"2026-06-29T20:57:25.910673Z","bundle_sha256":"8b753ac5a50b4713032cbffceb3a11f4d680c6ed15885eeb780e476c0d4b1adf"}}