{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2021:A2ON42EVCXTVKBHG2NX26P4AEU","short_pith_number":"pith:A2ON42EV","canonical_record":{"source":{"id":"2105.02420","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.DC","submitted_at":"2021-05-06T03:36:25Z","cross_cats_sorted":["cs.ET","cs.RO"],"title_canon_sha256":"561047189d87ba1fcfec8bedae52eb35707682ddaf189b321fe46a2831273df0","abstract_canon_sha256":"f69a930195451eaab5ee05834b5d6e01c15abfc568476130448690d800d7fd19"},"schema_version":"1.0"},"canonical_sha256":"069cde689515e75504e6d36faf3f80253e1d606341dc209f4889439fbc60e727","source":{"kind":"arxiv","id":"2105.02420","version":2},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2105.02420","created_at":"2026-06-03T02:05:38Z"},{"alias_kind":"arxiv_version","alias_value":"2105.02420v2","created_at":"2026-06-03T02:05:38Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2105.02420","created_at":"2026-06-03T02:05:38Z"},{"alias_kind":"pith_short_12","alias_value":"A2ON42EVCXTV","created_at":"2026-06-03T02:05:38Z"},{"alias_kind":"pith_short_16","alias_value":"A2ON42EVCXTVKBHG","created_at":"2026-06-03T02:05:38Z"},{"alias_kind":"pith_short_8","alias_value":"A2ON42EV","created_at":"2026-06-03T02:05:38Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2021:A2ON42EVCXTVKBHG2NX26P4AEU","target":"record","payload":{"canonical_record":{"source":{"id":"2105.02420","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.DC","submitted_at":"2021-05-06T03:36:25Z","cross_cats_sorted":["cs.ET","cs.RO"],"title_canon_sha256":"561047189d87ba1fcfec8bedae52eb35707682ddaf189b321fe46a2831273df0","abstract_canon_sha256":"f69a930195451eaab5ee05834b5d6e01c15abfc568476130448690d800d7fd19"},"schema_version":"1.0"},"canonical_sha256":"069cde689515e75504e6d36faf3f80253e1d606341dc209f4889439fbc60e727","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-06-03T02:05:38.481380Z","signature_b64":"Ae3XZOe+qgkoz2o5Y/dYWQs4O2/wHYn3bk+/JDe7eFaXuIQPYbpHiFgvlXwaNqEDywuyPu3v57CTkJxgr8l9AA==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"069cde689515e75504e6d36faf3f80253e1d606341dc209f4889439fbc60e727","last_reissued_at":"2026-06-03T02:05:38.480824Z","signature_status":"signed_v1","first_computed_at":"2026-06-03T02:05:38.480824Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"2105.02420","source_version":2,"attestation_state":"computed"},"signer":{"signer_id":"pith.science","signer_type":"pith_registry","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"created_at":"2026-06-03T02:05:38Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"bH3+kVrpelzBYiVgPIQFp/6DFLyd4SMyg67e6ABhexie70K+4oktNtSC24OhOFIVP0VVgs1AsvPQ66lJBBRHDA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-03T16:36:23.184498Z"},"content_sha256":"eca67014b7d4728564d049438ea2e4758fe646d99b5c7b76548f04d14156f0b1","schema_version":"1.0","event_id":"sha256:eca67014b7d4728564d049438ea2e4758fe646d99b5c7b76548f04d14156f0b1"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2021:A2ON42EVCXTVKBHG2NX26P4AEU","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"The Canonical Amoebot Model: Algorithms and Concurrency Control","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["cs.ET","cs.RO"],"primary_cat":"cs.DC","authors_text":"Andr\\'ea W. Richa, Christian Scheideler, Joshua J. Daymude","submitted_at":"2021-05-06T03:36:25Z","abstract_excerpt":"The amoebot model abstracts active programmable matter as a collection of simple computational elements called amoebots that interact locally to collectively achieve tasks of coordination and movement. Since its introduction at SPAA 2014, a growing body of literature has adapted its assumptions for a variety of problems; however, without a standardized hierarchy of assumptions, precise systematic comparison of results under the amoebot model is difficult. We propose the canonical amoebot model, an updated formalization that distinguishes between core model features and families of assumption v"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2105.02420","kind":"arxiv","version":2},"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/2105.02420/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":"2026-06-03T02:05:38Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"38V5CTnsqpobfagzP/9cCbCREiBeVWNQIS+W+JAY/X0OzQRODIuei4smrqXjMa6LUU0F5i/l+sXfngR4at9QDA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-03T16:36:23.184884Z"},"content_sha256":"d0d6fccac4b3839277563fd0e405656d0677bb3f18de758b1e0a42f13b2827d1","schema_version":"1.0","event_id":"sha256:d0d6fccac4b3839277563fd0e405656d0677bb3f18de758b1e0a42f13b2827d1"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/A2ON42EVCXTVKBHG2NX26P4AEU/bundle.json","state_url":"https://pith.science/pith/A2ON42EVCXTVKBHG2NX26P4AEU/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/A2ON42EVCXTVKBHG2NX26P4AEU/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":"2026-06-03T16:36:23Z","links":{"resolver":"https://pith.science/pith/A2ON42EVCXTVKBHG2NX26P4AEU","bundle":"https://pith.science/pith/A2ON42EVCXTVKBHG2NX26P4AEU/bundle.json","state":"https://pith.science/pith/A2ON42EVCXTVKBHG2NX26P4AEU/state.json","well_known_bundle":"https://pith.science/.well-known/pith/A2ON42EVCXTVKBHG2NX26P4AEU/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2021:A2ON42EVCXTVKBHG2NX26P4AEU","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":"f69a930195451eaab5ee05834b5d6e01c15abfc568476130448690d800d7fd19","cross_cats_sorted":["cs.ET","cs.RO"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.DC","submitted_at":"2021-05-06T03:36:25Z","title_canon_sha256":"561047189d87ba1fcfec8bedae52eb35707682ddaf189b321fe46a2831273df0"},"schema_version":"1.0","source":{"id":"2105.02420","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2105.02420","created_at":"2026-06-03T02:05:38Z"},{"alias_kind":"arxiv_version","alias_value":"2105.02420v2","created_at":"2026-06-03T02:05:38Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2105.02420","created_at":"2026-06-03T02:05:38Z"},{"alias_kind":"pith_short_12","alias_value":"A2ON42EVCXTV","created_at":"2026-06-03T02:05:38Z"},{"alias_kind":"pith_short_16","alias_value":"A2ON42EVCXTVKBHG","created_at":"2026-06-03T02:05:38Z"},{"alias_kind":"pith_short_8","alias_value":"A2ON42EV","created_at":"2026-06-03T02:05:38Z"}],"graph_snapshots":[{"event_id":"sha256:d0d6fccac4b3839277563fd0e405656d0677bb3f18de758b1e0a42f13b2827d1","target":"graph","created_at":"2026-06-03T02:05:38Z","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/2105.02420/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"The amoebot model abstracts active programmable matter as a collection of simple computational elements called amoebots that interact locally to collectively achieve tasks of coordination and movement. Since its introduction at SPAA 2014, a growing body of literature has adapted its assumptions for a variety of problems; however, without a standardized hierarchy of assumptions, precise systematic comparison of results under the amoebot model is difficult. We propose the canonical amoebot model, an updated formalization that distinguishes between core model features and families of assumption v","authors_text":"Andr\\'ea W. Richa, Christian Scheideler, Joshua J. Daymude","cross_cats":["cs.ET","cs.RO"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.DC","submitted_at":"2021-05-06T03:36:25Z","title":"The Canonical Amoebot Model: Algorithms and Concurrency Control"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2105.02420","kind":"arxiv","version":2},"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:eca67014b7d4728564d049438ea2e4758fe646d99b5c7b76548f04d14156f0b1","target":"record","created_at":"2026-06-03T02:05:38Z","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":"f69a930195451eaab5ee05834b5d6e01c15abfc568476130448690d800d7fd19","cross_cats_sorted":["cs.ET","cs.RO"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.DC","submitted_at":"2021-05-06T03:36:25Z","title_canon_sha256":"561047189d87ba1fcfec8bedae52eb35707682ddaf189b321fe46a2831273df0"},"schema_version":"1.0","source":{"id":"2105.02420","kind":"arxiv","version":2}},"canonical_sha256":"069cde689515e75504e6d36faf3f80253e1d606341dc209f4889439fbc60e727","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"069cde689515e75504e6d36faf3f80253e1d606341dc209f4889439fbc60e727","first_computed_at":"2026-06-03T02:05:38.480824Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-06-03T02:05:38.480824Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"Ae3XZOe+qgkoz2o5Y/dYWQs4O2/wHYn3bk+/JDe7eFaXuIQPYbpHiFgvlXwaNqEDywuyPu3v57CTkJxgr8l9AA==","signature_status":"signed_v1","signed_at":"2026-06-03T02:05:38.481380Z","signed_message":"canonical_sha256_bytes"},"source_id":"2105.02420","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:eca67014b7d4728564d049438ea2e4758fe646d99b5c7b76548f04d14156f0b1","sha256:d0d6fccac4b3839277563fd0e405656d0677bb3f18de758b1e0a42f13b2827d1"],"state_sha256":"4c6142d990a99047294baa85cc099fd454f5f674524ee8d632d8dda42318e658"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"VIX6VgUKMSXfxGQ3qkV67qOC1TXlZ/nsmyckg3opYxco9nLMOpEEaVC0YZ2BCRaS68+OlPsT46ZEcVVtLYgkDg==","signed_message":"bundle_sha256_bytes","signed_at":"2026-06-03T16:36:23.187177Z","bundle_sha256":"ea45aaac99916843806f1f9d990fcd04e0f076beb1484d2b68b563f2448969cd"}}