{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2026:2LX4ELEBITC2F5FFNR4H42JYGZ","short_pith_number":"pith:2LX4ELEB","canonical_record":{"source":{"id":"2606.20694","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.class-ph","submitted_at":"2026-06-15T06:02:15Z","cross_cats_sorted":["physics.pop-ph"],"title_canon_sha256":"099e56594785f09bf9cbfa73fc9788b83c95ab1c8d0069fa653a714a958cf1c6","abstract_canon_sha256":"139163be482f4273de7aaed4dcdbcfd11261e95c1e55b9a8481431cf2518df8c"},"schema_version":"1.0"},"canonical_sha256":"d2efc22c8144c5a2f4a56c787e69383641efc18f45fb440d8dd6fe0bea278a56","source":{"kind":"arxiv","id":"2606.20694","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2606.20694","created_at":"2026-06-23T00:11:53Z"},{"alias_kind":"arxiv_version","alias_value":"2606.20694v1","created_at":"2026-06-23T00:11:53Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2606.20694","created_at":"2026-06-23T00:11:53Z"},{"alias_kind":"pith_short_12","alias_value":"2LX4ELEBITC2","created_at":"2026-06-23T00:11:53Z"},{"alias_kind":"pith_short_16","alias_value":"2LX4ELEBITC2F5FF","created_at":"2026-06-23T00:11:53Z"},{"alias_kind":"pith_short_8","alias_value":"2LX4ELEB","created_at":"2026-06-23T00:11:53Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2026:2LX4ELEBITC2F5FFNR4H42JYGZ","target":"record","payload":{"canonical_record":{"source":{"id":"2606.20694","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.class-ph","submitted_at":"2026-06-15T06:02:15Z","cross_cats_sorted":["physics.pop-ph"],"title_canon_sha256":"099e56594785f09bf9cbfa73fc9788b83c95ab1c8d0069fa653a714a958cf1c6","abstract_canon_sha256":"139163be482f4273de7aaed4dcdbcfd11261e95c1e55b9a8481431cf2518df8c"},"schema_version":"1.0"},"canonical_sha256":"d2efc22c8144c5a2f4a56c787e69383641efc18f45fb440d8dd6fe0bea278a56","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-06-23T00:11:53.871608Z","signature_b64":"hhNw3tSsnHtE//vsBJbcGhnwmNKe83DjRCAhVZP2RZzmWmrD9UbKl8FWZ6dJ9nvf6fZEoWJtJVKtFGCE9RjBAQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"d2efc22c8144c5a2f4a56c787e69383641efc18f45fb440d8dd6fe0bea278a56","last_reissued_at":"2026-06-23T00:11:53.871202Z","signature_status":"signed_v1","first_computed_at":"2026-06-23T00:11:53.871202Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"2606.20694","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":"2026-06-23T00:11:53Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"g0GFq/sFtQeT+uY4q/OSfiAaZjh6czgyWXuql22TCF9v0SPTDNCTwoCYUex/9L1vZ+aqhZKV52pQ6qnlpvxbAA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-07-31T16:19:12.872167Z"},"content_sha256":"9607f61f06fa48a854e2439a9ccae77fb7f627bcc62b7a1f6751bb117287ab3c","schema_version":"1.0","event_id":"sha256:9607f61f06fa48a854e2439a9ccae77fb7f627bcc62b7a1f6751bb117287ab3c"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2026:2LX4ELEBITC2F5FFNR4H42JYGZ","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"A tabletop demonstration of distributed friction: the spinning wine glass","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["physics.pop-ph"],"primary_cat":"physics.class-ph","authors_text":"Ruben Canora","submitted_at":"2026-06-15T06:02:15Z","abstract_excerpt":"When a wine glass is dragged on a table along a circular path, a spontaneous rotation about its vertical axis can develop even if the applied hand force does not directly introduce a yaw torque. This document provides a structured formal derivation of the governing equations that are responsible for this behavior. The analysis shows that the mechanism responsible for this effect is the redistribution of pressure onto the table when applying the force with your hand. This causes an uneven frictional force distribution which exerts a torque on the glass, causing it to spin."},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2606.20694","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/2606.20694/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":"2026-06-23T00:11:53Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"MNG8u4vl3RAbSKFT4vUIlFwpCR5PDtozgZ3hopIDp5E/AI792o+OXsG+Jz4jUoXURYafpmINJB1VYzvEJz53Dg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-07-31T16:19:12.872494Z"},"content_sha256":"d3cbebd23ce49c40ee2aeb1eed27452801646561873be6c4873ef1edb28b3004","schema_version":"1.0","event_id":"sha256:d3cbebd23ce49c40ee2aeb1eed27452801646561873be6c4873ef1edb28b3004"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/2LX4ELEBITC2F5FFNR4H42JYGZ/bundle.json","state_url":"https://pith.science/pith/2LX4ELEBITC2F5FFNR4H42JYGZ/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/2LX4ELEBITC2F5FFNR4H42JYGZ/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":"2026-07-31T16:19:12Z","links":{"resolver":"https://pith.science/pith/2LX4ELEBITC2F5FFNR4H42JYGZ","bundle":"https://pith.science/pith/2LX4ELEBITC2F5FFNR4H42JYGZ/bundle.json","state":"https://pith.science/pith/2LX4ELEBITC2F5FFNR4H42JYGZ/state.json","well_known_bundle":"https://pith.science/.well-known/pith/2LX4ELEBITC2F5FFNR4H42JYGZ/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2026:2LX4ELEBITC2F5FFNR4H42JYGZ","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":"139163be482f4273de7aaed4dcdbcfd11261e95c1e55b9a8481431cf2518df8c","cross_cats_sorted":["physics.pop-ph"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.class-ph","submitted_at":"2026-06-15T06:02:15Z","title_canon_sha256":"099e56594785f09bf9cbfa73fc9788b83c95ab1c8d0069fa653a714a958cf1c6"},"schema_version":"1.0","source":{"id":"2606.20694","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2606.20694","created_at":"2026-06-23T00:11:53Z"},{"alias_kind":"arxiv_version","alias_value":"2606.20694v1","created_at":"2026-06-23T00:11:53Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2606.20694","created_at":"2026-06-23T00:11:53Z"},{"alias_kind":"pith_short_12","alias_value":"2LX4ELEBITC2","created_at":"2026-06-23T00:11:53Z"},{"alias_kind":"pith_short_16","alias_value":"2LX4ELEBITC2F5FF","created_at":"2026-06-23T00:11:53Z"},{"alias_kind":"pith_short_8","alias_value":"2LX4ELEB","created_at":"2026-06-23T00:11:53Z"}],"graph_snapshots":[{"event_id":"sha256:d3cbebd23ce49c40ee2aeb1eed27452801646561873be6c4873ef1edb28b3004","target":"graph","created_at":"2026-06-23T00:11:53Z","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/2606.20694/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"When a wine glass is dragged on a table along a circular path, a spontaneous rotation about its vertical axis can develop even if the applied hand force does not directly introduce a yaw torque. This document provides a structured formal derivation of the governing equations that are responsible for this behavior. The analysis shows that the mechanism responsible for this effect is the redistribution of pressure onto the table when applying the force with your hand. This causes an uneven frictional force distribution which exerts a torque on the glass, causing it to spin.","authors_text":"Ruben Canora","cross_cats":["physics.pop-ph"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.class-ph","submitted_at":"2026-06-15T06:02:15Z","title":"A tabletop demonstration of distributed friction: the spinning wine glass"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2606.20694","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":"sha256:9607f61f06fa48a854e2439a9ccae77fb7f627bcc62b7a1f6751bb117287ab3c","target":"record","created_at":"2026-06-23T00:11:53Z","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":"139163be482f4273de7aaed4dcdbcfd11261e95c1e55b9a8481431cf2518df8c","cross_cats_sorted":["physics.pop-ph"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.class-ph","submitted_at":"2026-06-15T06:02:15Z","title_canon_sha256":"099e56594785f09bf9cbfa73fc9788b83c95ab1c8d0069fa653a714a958cf1c6"},"schema_version":"1.0","source":{"id":"2606.20694","kind":"arxiv","version":1}},"canonical_sha256":"d2efc22c8144c5a2f4a56c787e69383641efc18f45fb440d8dd6fe0bea278a56","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"d2efc22c8144c5a2f4a56c787e69383641efc18f45fb440d8dd6fe0bea278a56","first_computed_at":"2026-06-23T00:11:53.871202Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-06-23T00:11:53.871202Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"hhNw3tSsnHtE//vsBJbcGhnwmNKe83DjRCAhVZP2RZzmWmrD9UbKl8FWZ6dJ9nvf6fZEoWJtJVKtFGCE9RjBAQ==","signature_status":"signed_v1","signed_at":"2026-06-23T00:11:53.871608Z","signed_message":"canonical_sha256_bytes"},"source_id":"2606.20694","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:9607f61f06fa48a854e2439a9ccae77fb7f627bcc62b7a1f6751bb117287ab3c","sha256:d3cbebd23ce49c40ee2aeb1eed27452801646561873be6c4873ef1edb28b3004"],"state_sha256":"c7d5a6d7a6726a30e11dd71ec2b4a86bebc66151a22526ff3b775471a0a9bde1"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"DFy2IaxDtnTL1Ndm+h0X9LDU6UIdUE7CCgNlqR7efbfqOcw/lIiq5i8WmWuzml467o7/1fbpVxwzYA7Z4aqRCw==","signed_message":"bundle_sha256_bytes","signed_at":"2026-07-31T16:19:12.875679Z","bundle_sha256":"39618140598e4b94c630293887d918f8b9eab01ddd623f12c60a020871b566c2"}}