{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2025:IS6RFQIT2MLCMWRJFX77I2P3N5","short_pith_number":"pith:IS6RFQIT","canonical_record":{"source":{"id":"2512.06535","kind":"arxiv","version":2},"metadata":{"license":"http://creativecommons.org/licenses/by-nc-nd/4.0/","primary_cat":"eess.SY","submitted_at":"2025-12-06T19:00:13Z","cross_cats_sorted":["cs.SY"],"title_canon_sha256":"25f1fb0965ec04739a8a955be147648e60ce647bb534228f3ef97e8661feb4de","abstract_canon_sha256":"ddb4d48b210882d604308fee4fc3c094444bf9c8e3437fde90046732a7522cd2"},"schema_version":"1.0"},"canonical_sha256":"44bd12c113d316265a292dfff469fb6f56bc05d36cc9aca59ae78fdf61009846","source":{"kind":"arxiv","id":"2512.06535","version":2},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2512.06535","created_at":"2026-05-22T01:03:51Z"},{"alias_kind":"arxiv_version","alias_value":"2512.06535v2","created_at":"2026-05-22T01:03:51Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2512.06535","created_at":"2026-05-22T01:03:51Z"},{"alias_kind":"pith_short_12","alias_value":"IS6RFQIT2MLC","created_at":"2026-05-22T01:03:51Z"},{"alias_kind":"pith_short_16","alias_value":"IS6RFQIT2MLCMWRJ","created_at":"2026-05-22T01:03:51Z"},{"alias_kind":"pith_short_8","alias_value":"IS6RFQIT","created_at":"2026-05-22T01:03:51Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2025:IS6RFQIT2MLCMWRJFX77I2P3N5","target":"record","payload":{"canonical_record":{"source":{"id":"2512.06535","kind":"arxiv","version":2},"metadata":{"license":"http://creativecommons.org/licenses/by-nc-nd/4.0/","primary_cat":"eess.SY","submitted_at":"2025-12-06T19:00:13Z","cross_cats_sorted":["cs.SY"],"title_canon_sha256":"25f1fb0965ec04739a8a955be147648e60ce647bb534228f3ef97e8661feb4de","abstract_canon_sha256":"ddb4d48b210882d604308fee4fc3c094444bf9c8e3437fde90046732a7522cd2"},"schema_version":"1.0"},"canonical_sha256":"44bd12c113d316265a292dfff469fb6f56bc05d36cc9aca59ae78fdf61009846","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-22T01:03:51.761732Z","signature_b64":"ANLu7wYwXqIBFU/Q7zyLF0I5gO9OOgrK2SYHCJmGHRohQ1akls2oUNcu9U06zW7UCUpt9YGav557vYx/9CD0Cg==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"44bd12c113d316265a292dfff469fb6f56bc05d36cc9aca59ae78fdf61009846","last_reissued_at":"2026-05-22T01:03:51.760875Z","signature_status":"signed_v1","first_computed_at":"2026-05-22T01:03:51.760875Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"2512.06535","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":"2026-05-22T01:03:51Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"dtu8uYsdBBfhuQ0S6edfbZ23qpTXj9+vvsez4x0T6C+Ng+v9xEE0kHv7G7lBE1b6rFqqvxWgNQA2jZnK/4AyBg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-28T06:17:50.937898Z"},"content_sha256":"8bebbfe438593880e896b2d8c8241c204620661f4e6d1db9b2021fb282eb6961","schema_version":"1.0","event_id":"sha256:8bebbfe438593880e896b2d8c8241c204620661f4e6d1db9b2021fb282eb6961"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2025:IS6RFQIT2MLCMWRJFX77I2P3N5","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"The E-Rocket: Low-cost Testbed for TVC Rocket GNC Validation","license":"http://creativecommons.org/licenses/by-nc-nd/4.0/","headline":"","cross_cats":["cs.SY"],"primary_cat":"eess.SY","authors_text":"Andr\\'e Fonte, Paulo Oliveira, Pedro Martins, Pedro Santos","submitted_at":"2025-12-06T19:00:13Z","abstract_excerpt":"This paper presents the E-Rocket, an electric-powered, low-cost rocket prototype for validation of Guidance, Navigation & Control (GNC) algorithms based on Thrust Vector Control (TVC). Relying on commercially available components and 3D printed parts, a pair of contra-rotating DC brushless motors is assembled on a servo-actuated gimbal mechanism that provides thrust vectoring capability. A custom avionics hardware and software stack is developed considering a dual computer setup which leverages the capabilities of the PX4 autopilot and the modularity of ROS 2 to accommodate for tailored GNC al"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2512.06535","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/2512.06535/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":"2026-05-22T01:03:51Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"VuL59aGjOsuyPu5z7mG8pKlH8RBejVdXj1Otz77dmGp/YAYqN7uHkgRLFEA88H3inae22RB4JTIUWG2iGfOuBA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-28T06:17:50.938272Z"},"content_sha256":"192c1eff079c850be5852dd566abcb143da0ff52866949858714c98aa1cc15ed","schema_version":"1.0","event_id":"sha256:192c1eff079c850be5852dd566abcb143da0ff52866949858714c98aa1cc15ed"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/IS6RFQIT2MLCMWRJFX77I2P3N5/bundle.json","state_url":"https://pith.science/pith/IS6RFQIT2MLCMWRJFX77I2P3N5/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/IS6RFQIT2MLCMWRJFX77I2P3N5/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":"2026-05-28T06:17:50Z","links":{"resolver":"https://pith.science/pith/IS6RFQIT2MLCMWRJFX77I2P3N5","bundle":"https://pith.science/pith/IS6RFQIT2MLCMWRJFX77I2P3N5/bundle.json","state":"https://pith.science/pith/IS6RFQIT2MLCMWRJFX77I2P3N5/state.json","well_known_bundle":"https://pith.science/.well-known/pith/IS6RFQIT2MLCMWRJFX77I2P3N5/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2025:IS6RFQIT2MLCMWRJFX77I2P3N5","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":"ddb4d48b210882d604308fee4fc3c094444bf9c8e3437fde90046732a7522cd2","cross_cats_sorted":["cs.SY"],"license":"http://creativecommons.org/licenses/by-nc-nd/4.0/","primary_cat":"eess.SY","submitted_at":"2025-12-06T19:00:13Z","title_canon_sha256":"25f1fb0965ec04739a8a955be147648e60ce647bb534228f3ef97e8661feb4de"},"schema_version":"1.0","source":{"id":"2512.06535","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2512.06535","created_at":"2026-05-22T01:03:51Z"},{"alias_kind":"arxiv_version","alias_value":"2512.06535v2","created_at":"2026-05-22T01:03:51Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2512.06535","created_at":"2026-05-22T01:03:51Z"},{"alias_kind":"pith_short_12","alias_value":"IS6RFQIT2MLC","created_at":"2026-05-22T01:03:51Z"},{"alias_kind":"pith_short_16","alias_value":"IS6RFQIT2MLCMWRJ","created_at":"2026-05-22T01:03:51Z"},{"alias_kind":"pith_short_8","alias_value":"IS6RFQIT","created_at":"2026-05-22T01:03:51Z"}],"graph_snapshots":[{"event_id":"sha256:192c1eff079c850be5852dd566abcb143da0ff52866949858714c98aa1cc15ed","target":"graph","created_at":"2026-05-22T01:03:51Z","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/2512.06535/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"This paper presents the E-Rocket, an electric-powered, low-cost rocket prototype for validation of Guidance, Navigation & Control (GNC) algorithms based on Thrust Vector Control (TVC). Relying on commercially available components and 3D printed parts, a pair of contra-rotating DC brushless motors is assembled on a servo-actuated gimbal mechanism that provides thrust vectoring capability. A custom avionics hardware and software stack is developed considering a dual computer setup which leverages the capabilities of the PX4 autopilot and the modularity of ROS 2 to accommodate for tailored GNC al","authors_text":"Andr\\'e Fonte, Paulo Oliveira, Pedro Martins, Pedro Santos","cross_cats":["cs.SY"],"headline":"","license":"http://creativecommons.org/licenses/by-nc-nd/4.0/","primary_cat":"eess.SY","submitted_at":"2025-12-06T19:00:13Z","title":"The E-Rocket: Low-cost Testbed for TVC Rocket GNC Validation"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2512.06535","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":"sha256:8bebbfe438593880e896b2d8c8241c204620661f4e6d1db9b2021fb282eb6961","target":"record","created_at":"2026-05-22T01:03:51Z","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":"ddb4d48b210882d604308fee4fc3c094444bf9c8e3437fde90046732a7522cd2","cross_cats_sorted":["cs.SY"],"license":"http://creativecommons.org/licenses/by-nc-nd/4.0/","primary_cat":"eess.SY","submitted_at":"2025-12-06T19:00:13Z","title_canon_sha256":"25f1fb0965ec04739a8a955be147648e60ce647bb534228f3ef97e8661feb4de"},"schema_version":"1.0","source":{"id":"2512.06535","kind":"arxiv","version":2}},"canonical_sha256":"44bd12c113d316265a292dfff469fb6f56bc05d36cc9aca59ae78fdf61009846","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"44bd12c113d316265a292dfff469fb6f56bc05d36cc9aca59ae78fdf61009846","first_computed_at":"2026-05-22T01:03:51.760875Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-22T01:03:51.760875Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"ANLu7wYwXqIBFU/Q7zyLF0I5gO9OOgrK2SYHCJmGHRohQ1akls2oUNcu9U06zW7UCUpt9YGav557vYx/9CD0Cg==","signature_status":"signed_v1","signed_at":"2026-05-22T01:03:51.761732Z","signed_message":"canonical_sha256_bytes"},"source_id":"2512.06535","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:8bebbfe438593880e896b2d8c8241c204620661f4e6d1db9b2021fb282eb6961","sha256:192c1eff079c850be5852dd566abcb143da0ff52866949858714c98aa1cc15ed"],"state_sha256":"6a971bf20f8d5c02f6e68959fab8823f685a067551955fb221dc8b3cc32aae21"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"PfAIGXHjSWWtYslfXw2nTLSMEKbLPsFluHleHy8xoaudaRxZ0jX+DQokbD5W4uGabo+nqF6RKS5Odlc4ub1CBA==","signed_message":"bundle_sha256_bytes","signed_at":"2026-05-28T06:17:50.940564Z","bundle_sha256":"a02627fb3390c70d10fb4177eaa0f24fdddab526af40eae7a59d09f3558f85b3"}}