{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2025:D2GGXAHLY5HNNOK5PHAHF33IOR","short_pith_number":"pith:D2GGXAHL","canonical_record":{"source":{"id":"2511.06401","kind":"arxiv","version":3},"metadata":{"license":"http://creativecommons.org/licenses/by-nc-sa/4.0/","primary_cat":"physics.bio-ph","submitted_at":"2025-11-09T14:23:44Z","cross_cats_sorted":["physics.comp-ph","quant-ph"],"title_canon_sha256":"19cbb9abb4c92ff641d45ee8e266896d7ea93a58247a30812160f275c2fcdfbc","abstract_canon_sha256":"0fabc80bf7e4acd01e8446a4d97a026592b7dcc9e3c3cad20321e39343876df7"},"schema_version":"1.0"},"canonical_sha256":"1e8c6b80ebc74ed6b95d79c072ef68747e4b22bec13c09a9fb00165d574e0dc4","source":{"kind":"arxiv","id":"2511.06401","version":3},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2511.06401","created_at":"2026-06-12T01:09:15Z"},{"alias_kind":"arxiv_version","alias_value":"2511.06401v3","created_at":"2026-06-12T01:09:15Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2511.06401","created_at":"2026-06-12T01:09:15Z"},{"alias_kind":"pith_short_12","alias_value":"D2GGXAHLY5HN","created_at":"2026-06-12T01:09:15Z"},{"alias_kind":"pith_short_16","alias_value":"D2GGXAHLY5HNNOK5","created_at":"2026-06-12T01:09:15Z"},{"alias_kind":"pith_short_8","alias_value":"D2GGXAHL","created_at":"2026-06-12T01:09:15Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2025:D2GGXAHLY5HNNOK5PHAHF33IOR","target":"record","payload":{"canonical_record":{"source":{"id":"2511.06401","kind":"arxiv","version":3},"metadata":{"license":"http://creativecommons.org/licenses/by-nc-sa/4.0/","primary_cat":"physics.bio-ph","submitted_at":"2025-11-09T14:23:44Z","cross_cats_sorted":["physics.comp-ph","quant-ph"],"title_canon_sha256":"19cbb9abb4c92ff641d45ee8e266896d7ea93a58247a30812160f275c2fcdfbc","abstract_canon_sha256":"0fabc80bf7e4acd01e8446a4d97a026592b7dcc9e3c3cad20321e39343876df7"},"schema_version":"1.0"},"canonical_sha256":"1e8c6b80ebc74ed6b95d79c072ef68747e4b22bec13c09a9fb00165d574e0dc4","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-06-12T01:09:15.936047Z","signature_b64":"zVmA2tyvpFoVsuoPlVbeIZZkUNnjdtaAqZtC1DQfdhJJUb6lL4/ag3EVkxJYRZXKFpifg670qSesJ9jf6lA/CQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"1e8c6b80ebc74ed6b95d79c072ef68747e4b22bec13c09a9fb00165d574e0dc4","last_reissued_at":"2026-06-12T01:09:15.934949Z","signature_status":"signed_v1","first_computed_at":"2026-06-12T01:09:15.934949Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"2511.06401","source_version":3,"attestation_state":"computed"},"signer":{"signer_id":"pith.science","signer_type":"pith_registry","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"created_at":"2026-06-12T01:09:15Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"P6iswWEjZYUvL6utA6L6y88YWrciKVw1fY6sOkeyu+jcawNZv8bIfe+FpBsOwezQE0Yos0XS46lmkmoZMn2vCw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-21T07:48:18.701419Z"},"content_sha256":"a1ce7e790852761a19ef9ba90bb9eb71b36700f396f43700af82f606c165078d","schema_version":"1.0","event_id":"sha256:a1ce7e790852761a19ef9ba90bb9eb71b36700f396f43700af82f606c165078d"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2025:D2GGXAHLY5HNNOK5PHAHF33IOR","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Metabolic quantum limit to the information capacity of magnetoencephalography","license":"http://creativecommons.org/licenses/by-nc-sa/4.0/","headline":"","cross_cats":["physics.comp-ph","quant-ph"],"primary_cat":"physics.bio-ph","authors_text":"E. Gkoudinakis, I. K. Kominis, S. Li","submitted_at":"2025-11-09T14:23:44Z","abstract_excerpt":"Magnetoencephalography measures the magnetic fields generated by neural currents using quantum sensors such as superconducting quantum interference devices and atomic magnetometers. Here we combine the energy resolution limit of magnetic sensing with the metabolic power available to neural currents to derive a technology-independent bound on the information capacity of MEG. The bound factorizes into geometry, metabolism, and Planck's constant, and gives an estimated maximum information rate of 2.2~Mbit/s for representative human-brain parameters. Further, we show that the externally measurable"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2511.06401","kind":"arxiv","version":3},"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/2511.06401/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":"2026-06-12T01:09:15Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"kRPQWEvmX5/5G7Jxiqz/wCPcsWBI/INxFYlDQYKQVsudL60n1knmavDDDuIzUUitHiPYbnAJCxkFRBCOId3uBQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-21T07:48:18.702391Z"},"content_sha256":"02b7397d67aa55c3cdb588f85a5895de3377f19036f3ab5ca8fdb4cc7f34b61e","schema_version":"1.0","event_id":"sha256:02b7397d67aa55c3cdb588f85a5895de3377f19036f3ab5ca8fdb4cc7f34b61e"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/D2GGXAHLY5HNNOK5PHAHF33IOR/bundle.json","state_url":"https://pith.science/pith/D2GGXAHLY5HNNOK5PHAHF33IOR/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/D2GGXAHLY5HNNOK5PHAHF33IOR/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":"2026-08-21T07:48:18Z","links":{"resolver":"https://pith.science/pith/D2GGXAHLY5HNNOK5PHAHF33IOR","bundle":"https://pith.science/pith/D2GGXAHLY5HNNOK5PHAHF33IOR/bundle.json","state":"https://pith.science/pith/D2GGXAHLY5HNNOK5PHAHF33IOR/state.json","well_known_bundle":"https://pith.science/.well-known/pith/D2GGXAHLY5HNNOK5PHAHF33IOR/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2025:D2GGXAHLY5HNNOK5PHAHF33IOR","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":"0fabc80bf7e4acd01e8446a4d97a026592b7dcc9e3c3cad20321e39343876df7","cross_cats_sorted":["physics.comp-ph","quant-ph"],"license":"http://creativecommons.org/licenses/by-nc-sa/4.0/","primary_cat":"physics.bio-ph","submitted_at":"2025-11-09T14:23:44Z","title_canon_sha256":"19cbb9abb4c92ff641d45ee8e266896d7ea93a58247a30812160f275c2fcdfbc"},"schema_version":"1.0","source":{"id":"2511.06401","kind":"arxiv","version":3}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2511.06401","created_at":"2026-06-12T01:09:15Z"},{"alias_kind":"arxiv_version","alias_value":"2511.06401v3","created_at":"2026-06-12T01:09:15Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2511.06401","created_at":"2026-06-12T01:09:15Z"},{"alias_kind":"pith_short_12","alias_value":"D2GGXAHLY5HN","created_at":"2026-06-12T01:09:15Z"},{"alias_kind":"pith_short_16","alias_value":"D2GGXAHLY5HNNOK5","created_at":"2026-06-12T01:09:15Z"},{"alias_kind":"pith_short_8","alias_value":"D2GGXAHL","created_at":"2026-06-12T01:09:15Z"}],"graph_snapshots":[{"event_id":"sha256:02b7397d67aa55c3cdb588f85a5895de3377f19036f3ab5ca8fdb4cc7f34b61e","target":"graph","created_at":"2026-06-12T01:09:15Z","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/2511.06401/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"Magnetoencephalography measures the magnetic fields generated by neural currents using quantum sensors such as superconducting quantum interference devices and atomic magnetometers. Here we combine the energy resolution limit of magnetic sensing with the metabolic power available to neural currents to derive a technology-independent bound on the information capacity of MEG. The bound factorizes into geometry, metabolism, and Planck's constant, and gives an estimated maximum information rate of 2.2~Mbit/s for representative human-brain parameters. Further, we show that the externally measurable","authors_text":"E. Gkoudinakis, I. K. Kominis, S. Li","cross_cats":["physics.comp-ph","quant-ph"],"headline":"","license":"http://creativecommons.org/licenses/by-nc-sa/4.0/","primary_cat":"physics.bio-ph","submitted_at":"2025-11-09T14:23:44Z","title":"Metabolic quantum limit to the information capacity of magnetoencephalography"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2511.06401","kind":"arxiv","version":3},"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:a1ce7e790852761a19ef9ba90bb9eb71b36700f396f43700af82f606c165078d","target":"record","created_at":"2026-06-12T01:09:15Z","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":"0fabc80bf7e4acd01e8446a4d97a026592b7dcc9e3c3cad20321e39343876df7","cross_cats_sorted":["physics.comp-ph","quant-ph"],"license":"http://creativecommons.org/licenses/by-nc-sa/4.0/","primary_cat":"physics.bio-ph","submitted_at":"2025-11-09T14:23:44Z","title_canon_sha256":"19cbb9abb4c92ff641d45ee8e266896d7ea93a58247a30812160f275c2fcdfbc"},"schema_version":"1.0","source":{"id":"2511.06401","kind":"arxiv","version":3}},"canonical_sha256":"1e8c6b80ebc74ed6b95d79c072ef68747e4b22bec13c09a9fb00165d574e0dc4","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"1e8c6b80ebc74ed6b95d79c072ef68747e4b22bec13c09a9fb00165d574e0dc4","first_computed_at":"2026-06-12T01:09:15.934949Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-06-12T01:09:15.934949Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"zVmA2tyvpFoVsuoPlVbeIZZkUNnjdtaAqZtC1DQfdhJJUb6lL4/ag3EVkxJYRZXKFpifg670qSesJ9jf6lA/CQ==","signature_status":"signed_v1","signed_at":"2026-06-12T01:09:15.936047Z","signed_message":"canonical_sha256_bytes"},"source_id":"2511.06401","source_kind":"arxiv","source_version":3}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:a1ce7e790852761a19ef9ba90bb9eb71b36700f396f43700af82f606c165078d","sha256:02b7397d67aa55c3cdb588f85a5895de3377f19036f3ab5ca8fdb4cc7f34b61e"],"state_sha256":"31fe45a75fc2d53136766612f5166d925772e6e946b6432fbed9af70b650fbaa"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"KTmGeuaNHjekWohmYIKNFm7J0OXeLJB1qAhnH5c4Fnz9qv+NMmbzUA2ZGFLRDsCK4ODOKefGMSqtU5Lh+o2BBA==","signed_message":"bundle_sha256_bytes","signed_at":"2026-08-21T07:48:18.708813Z","bundle_sha256":"3ce6e0c7086ab2244cb8719f8981899fbf0d93e42a5953abd28d78e303256624"}}