{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2026:X67MHDBYSKCVB7IPT23ZLJHJ6G","short_pith_number":"pith:X67MHDBY","canonical_record":{"source":{"id":"2608.17497","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"eess.SP","submitted_at":"2026-08-18T08:24:26Z","cross_cats_sorted":[],"title_canon_sha256":"a8a1c7ca9351f4b9de324c0af42b33ad386283aa1660a27ed887c879b12f7665","abstract_canon_sha256":"f6357105b401f13fa848716e26a663932384933a0cd836ebd2873c1306a76b54"},"schema_version":"1.0"},"canonical_sha256":"bfbec38c38928550fd0f9eb795a4e9f18038994c29a31a242ae3dcd8dea996e1","source":{"kind":"arxiv","id":"2608.17497","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2608.17497","created_at":"2026-08-19T01:31:14Z"},{"alias_kind":"arxiv_version","alias_value":"2608.17497v1","created_at":"2026-08-19T01:31:14Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2608.17497","created_at":"2026-08-19T01:31:14Z"},{"alias_kind":"pith_short_12","alias_value":"X67MHDBYSKCV","created_at":"2026-08-19T01:31:14Z"},{"alias_kind":"pith_short_16","alias_value":"X67MHDBYSKCVB7IP","created_at":"2026-08-19T01:31:14Z"},{"alias_kind":"pith_short_8","alias_value":"X67MHDBY","created_at":"2026-08-19T01:31:14Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2026:X67MHDBYSKCVB7IPT23ZLJHJ6G","target":"record","payload":{"canonical_record":{"source":{"id":"2608.17497","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"eess.SP","submitted_at":"2026-08-18T08:24:26Z","cross_cats_sorted":[],"title_canon_sha256":"a8a1c7ca9351f4b9de324c0af42b33ad386283aa1660a27ed887c879b12f7665","abstract_canon_sha256":"f6357105b401f13fa848716e26a663932384933a0cd836ebd2873c1306a76b54"},"schema_version":"1.0"},"canonical_sha256":"bfbec38c38928550fd0f9eb795a4e9f18038994c29a31a242ae3dcd8dea996e1","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-08-19T01:31:14.183044Z","signature_b64":"TAfhiUBhvV2TsA19pouBMEyCes5ek07qYweSL5iyaLU3HdGEcCi84d6vXurHRJgSEl2JEQxih8nV1iWL54HQBg==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"bfbec38c38928550fd0f9eb795a4e9f18038994c29a31a242ae3dcd8dea996e1","last_reissued_at":"2026-08-19T01:31:14.180387Z","signature_status":"signed_v1","first_computed_at":"2026-08-19T01:31:14.180387Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"2608.17497","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":"2026-08-19T01:31:14Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"rC7zTUi4FizBF262aUMqrcFV+TDr4JvgAW1ZtAPqHKYjf6y7A4gLZiG7uu8Obdo0B73Hvm9LDNx4RuzV9NnNAg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-23T01:52:54.441906Z"},"content_sha256":"e07c98b947a7cc948e730d677a7747424b3285c36c84787fb8d1bee02c52d1a0","schema_version":"1.0","event_id":"sha256:e07c98b947a7cc948e730d677a7747424b3285c36c84787fb8d1bee02c52d1a0"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2026:X67MHDBYSKCVB7IPT23ZLJHJ6G","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Channel Modeling for Phase-Based Ranging","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"eess.SP","authors_text":"Markus Gardill, Till Droemmer","submitted_at":"2026-08-18T08:24:26Z","abstract_excerpt":"This paper presents a Python-based simulation framework for the physical layer of Bluetooth Channel Sounding in accordance with Bluetooth Core Specification v6.2. The simulator implements Mode 3 phase-based ranging across 72 active tones in the 2.4 GHz ISM band and supports multiple propagation conditions, including free-space, static multipath, and IEEE 802.15.4a stochastic multipath channels. In addition, it models relevant hardware and interference effects such as phase noise, phase ramp, carrier frequency offset, IQ imbalance, ADC quantization, and narrowband interference from co-located W"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2608.17497","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/2608.17497/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":"2026-08-19T01:31:14Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"59HXkzwualwN88c7d2iFtwGDKnLSEjcd/veW/81YmlCDdPIFtnQMn+fuwbXK/JnlQYynIazhNbewP9Q9yLjXCw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-23T01:52:54.442510Z"},"content_sha256":"9bed09c8b9a6cc4802021daf7195aebe34976cf216b27cf16805cfbfc3bece02","schema_version":"1.0","event_id":"sha256:9bed09c8b9a6cc4802021daf7195aebe34976cf216b27cf16805cfbfc3bece02"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/X67MHDBYSKCVB7IPT23ZLJHJ6G/bundle.json","state_url":"https://pith.science/pith/X67MHDBYSKCVB7IPT23ZLJHJ6G/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/X67MHDBYSKCVB7IPT23ZLJHJ6G/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":"2026-08-23T01:52:54Z","links":{"resolver":"https://pith.science/pith/X67MHDBYSKCVB7IPT23ZLJHJ6G","bundle":"https://pith.science/pith/X67MHDBYSKCVB7IPT23ZLJHJ6G/bundle.json","state":"https://pith.science/pith/X67MHDBYSKCVB7IPT23ZLJHJ6G/state.json","well_known_bundle":"https://pith.science/.well-known/pith/X67MHDBYSKCVB7IPT23ZLJHJ6G/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2026:X67MHDBYSKCVB7IPT23ZLJHJ6G","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":"f6357105b401f13fa848716e26a663932384933a0cd836ebd2873c1306a76b54","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"eess.SP","submitted_at":"2026-08-18T08:24:26Z","title_canon_sha256":"a8a1c7ca9351f4b9de324c0af42b33ad386283aa1660a27ed887c879b12f7665"},"schema_version":"1.0","source":{"id":"2608.17497","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2608.17497","created_at":"2026-08-19T01:31:14Z"},{"alias_kind":"arxiv_version","alias_value":"2608.17497v1","created_at":"2026-08-19T01:31:14Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2608.17497","created_at":"2026-08-19T01:31:14Z"},{"alias_kind":"pith_short_12","alias_value":"X67MHDBYSKCV","created_at":"2026-08-19T01:31:14Z"},{"alias_kind":"pith_short_16","alias_value":"X67MHDBYSKCVB7IP","created_at":"2026-08-19T01:31:14Z"},{"alias_kind":"pith_short_8","alias_value":"X67MHDBY","created_at":"2026-08-19T01:31:14Z"}],"graph_snapshots":[{"event_id":"sha256:9bed09c8b9a6cc4802021daf7195aebe34976cf216b27cf16805cfbfc3bece02","target":"graph","created_at":"2026-08-19T01:31:14Z","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/2608.17497/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"This paper presents a Python-based simulation framework for the physical layer of Bluetooth Channel Sounding in accordance with Bluetooth Core Specification v6.2. The simulator implements Mode 3 phase-based ranging across 72 active tones in the 2.4 GHz ISM band and supports multiple propagation conditions, including free-space, static multipath, and IEEE 802.15.4a stochastic multipath channels. In addition, it models relevant hardware and interference effects such as phase noise, phase ramp, carrier frequency offset, IQ imbalance, ADC quantization, and narrowband interference from co-located W","authors_text":"Markus Gardill, Till Droemmer","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"eess.SP","submitted_at":"2026-08-18T08:24:26Z","title":"Channel Modeling for Phase-Based Ranging"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2608.17497","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:e07c98b947a7cc948e730d677a7747424b3285c36c84787fb8d1bee02c52d1a0","target":"record","created_at":"2026-08-19T01:31:14Z","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":"f6357105b401f13fa848716e26a663932384933a0cd836ebd2873c1306a76b54","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"eess.SP","submitted_at":"2026-08-18T08:24:26Z","title_canon_sha256":"a8a1c7ca9351f4b9de324c0af42b33ad386283aa1660a27ed887c879b12f7665"},"schema_version":"1.0","source":{"id":"2608.17497","kind":"arxiv","version":1}},"canonical_sha256":"bfbec38c38928550fd0f9eb795a4e9f18038994c29a31a242ae3dcd8dea996e1","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"bfbec38c38928550fd0f9eb795a4e9f18038994c29a31a242ae3dcd8dea996e1","first_computed_at":"2026-08-19T01:31:14.180387Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-08-19T01:31:14.180387Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"TAfhiUBhvV2TsA19pouBMEyCes5ek07qYweSL5iyaLU3HdGEcCi84d6vXurHRJgSEl2JEQxih8nV1iWL54HQBg==","signature_status":"signed_v1","signed_at":"2026-08-19T01:31:14.183044Z","signed_message":"canonical_sha256_bytes"},"source_id":"2608.17497","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:e07c98b947a7cc948e730d677a7747424b3285c36c84787fb8d1bee02c52d1a0","sha256:9bed09c8b9a6cc4802021daf7195aebe34976cf216b27cf16805cfbfc3bece02"],"state_sha256":"56c5326712bd8e1ca5384799b326858bd9e60f2b816c87161936b35e9853033b"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"p+O+nGqc2O/b7F+SRWPgTUBB5IXN9gNYizDOdQKl4mYAHbOnDI+PRia6CyJwKD23oLnApTTpwwDScx79Ob2NBA==","signed_message":"bundle_sha256_bytes","signed_at":"2026-08-23T01:52:54.447716Z","bundle_sha256":"b6e2142f5aa5a0ab416b1276ca28a40377899aea3d2d416cdd26ca75dae20eca"}}