{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2014:FVAI6P2OH46D4XJPA7LZ4LB5LQ","short_pith_number":"pith:FVAI6P2O","canonical_record":{"source":{"id":"1409.7084","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.IM","submitted_at":"2014-09-24T20:14:34Z","cross_cats_sorted":[],"title_canon_sha256":"462c8e46f712bd21eb0e213ababe4ec5e45846e4abae596d7758602d58bdeeaa","abstract_canon_sha256":"4f4775b76bd87d0c73e94b23eeed80c17bd318ada58bd0aabbea234b7f799e81"},"schema_version":"1.0"},"canonical_sha256":"2d408f3f4e3f3c3e5d2f07d79e2c3d5c0b3e7b6120b89bde91938542568331eb","source":{"kind":"arxiv","id":"1409.7084","version":2},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1409.7084","created_at":"2026-05-18T02:37:51Z"},{"alias_kind":"arxiv_version","alias_value":"1409.7084v2","created_at":"2026-05-18T02:37:51Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1409.7084","created_at":"2026-05-18T02:37:51Z"},{"alias_kind":"pith_short_12","alias_value":"FVAI6P2OH46D","created_at":"2026-05-18T12:28:28Z"},{"alias_kind":"pith_short_16","alias_value":"FVAI6P2OH46D4XJP","created_at":"2026-05-18T12:28:28Z"},{"alias_kind":"pith_short_8","alias_value":"FVAI6P2O","created_at":"2026-05-18T12:28:28Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2014:FVAI6P2OH46D4XJPA7LZ4LB5LQ","target":"record","payload":{"canonical_record":{"source":{"id":"1409.7084","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.IM","submitted_at":"2014-09-24T20:14:34Z","cross_cats_sorted":[],"title_canon_sha256":"462c8e46f712bd21eb0e213ababe4ec5e45846e4abae596d7758602d58bdeeaa","abstract_canon_sha256":"4f4775b76bd87d0c73e94b23eeed80c17bd318ada58bd0aabbea234b7f799e81"},"schema_version":"1.0"},"canonical_sha256":"2d408f3f4e3f3c3e5d2f07d79e2c3d5c0b3e7b6120b89bde91938542568331eb","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T02:37:51.432961Z","signature_b64":"ScuxhZT7Bul4uRCFif+I+vZqK4FpTJq+NLePkP4RNU5UlZu/PAAkg9+BS/cHMc4pkaVKRC4PjTa3ZLZns5PqAw==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"2d408f3f4e3f3c3e5d2f07d79e2c3d5c0b3e7b6120b89bde91938542568331eb","last_reissued_at":"2026-05-18T02:37:51.432336Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T02:37:51.432336Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1409.7084","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":"2026-05-18T02:37:51Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"fTo/QC9JYRG9V6tDISCGb/zuXz99DrmugCSYuCe+FQn3FihzCs84g+Vo2aeMi2OlngXpJhMzRKvMEU/RUizVBw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-31T23:36:26.624598Z"},"content_sha256":"a3a2d6e7d58b172d153e3551443bdb4c59036a975a9cd8b4a3da214f2a619ffb","schema_version":"1.0","event_id":"sha256:a3a2d6e7d58b172d153e3551443bdb4c59036a975a9cd8b4a3da214f2a619ffb"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2014:FVAI6P2OH46D4XJPA7LZ4LB5LQ","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"The Next Generation BLAST Experiment","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.IM","authors_text":"Bradley J. Dober, Carole Tucker, Christopher E. Groppi, Dale Li, Dan Becker, David P. Pappas, Derek Ward-Thompson, Douglas Scott, Enzo Pascale, Fabio P. Santos, Francesco E. Angil\\`e, Fumitaka Nakamura, Gene C. Hilton, George Che, Giampaolo Pisano, Giles Novak, Giorgio Savini, Hamdi Mani, Hsiao-mei Cho, James A. Beall, Jeffrey Klein, Jeff Van Lanen, Jiansong Gao, Joel N. Ullom, Johannes Hubmayr, Kent D. Irwin, Kristi J. Bradford, Laura M. Fissel, Mark J. Devlin, Matthew Underhill, Michael R. Vissers, Nathan P. Lourie, Nicholas Galitzki, Peter A. R. Ade, Peter Ashton, Peter G. Martin, Philip Mauskopf, Sara Stanchfield, Seth Hillbrand, Yasuo Fukui, Zhi-Yun Li","submitted_at":"2014-09-24T20:14:34Z","abstract_excerpt":"The Balloon-borne Large Aperture Submillimeter Telescope for Polarimetry (BLASTPol) was a suborbital experiment designed to map magnetic fields in order to study their role in star formation processes. BLASTPol made detailed polarization maps of a number of molecular clouds during its successful flights from Antarctica in 2010 and 2012. We present the next-generation BLASTPol instrument (BLAST-TNG) that will build off the success of the previous experiment and continue its role as a unique instrument and a test bed for new technologies. With a 16-fold increase in mapping speed, BLAST-TNG will "},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1409.7084","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":""},"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":"2026-05-18T02:37:51Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"sDwRdd9/PpSqijWYSY5ZAHyma1IxNm4/xgTdc66EFKF/rC4p9R9h7XY2rchVwRGC+MmgJBirAEThifpeQrlADA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-31T23:36:26.625833Z"},"content_sha256":"c0dd2a258460353cbb7b7d6f972c9e6bbca4b2e5a00b800b23e2f06cf1856c42","schema_version":"1.0","event_id":"sha256:c0dd2a258460353cbb7b7d6f972c9e6bbca4b2e5a00b800b23e2f06cf1856c42"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/FVAI6P2OH46D4XJPA7LZ4LB5LQ/bundle.json","state_url":"https://pith.science/pith/FVAI6P2OH46D4XJPA7LZ4LB5LQ/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/FVAI6P2OH46D4XJPA7LZ4LB5LQ/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":"2026-05-31T23:36:26Z","links":{"resolver":"https://pith.science/pith/FVAI6P2OH46D4XJPA7LZ4LB5LQ","bundle":"https://pith.science/pith/FVAI6P2OH46D4XJPA7LZ4LB5LQ/bundle.json","state":"https://pith.science/pith/FVAI6P2OH46D4XJPA7LZ4LB5LQ/state.json","well_known_bundle":"https://pith.science/.well-known/pith/FVAI6P2OH46D4XJPA7LZ4LB5LQ/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2014:FVAI6P2OH46D4XJPA7LZ4LB5LQ","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":"4f4775b76bd87d0c73e94b23eeed80c17bd318ada58bd0aabbea234b7f799e81","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.IM","submitted_at":"2014-09-24T20:14:34Z","title_canon_sha256":"462c8e46f712bd21eb0e213ababe4ec5e45846e4abae596d7758602d58bdeeaa"},"schema_version":"1.0","source":{"id":"1409.7084","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1409.7084","created_at":"2026-05-18T02:37:51Z"},{"alias_kind":"arxiv_version","alias_value":"1409.7084v2","created_at":"2026-05-18T02:37:51Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1409.7084","created_at":"2026-05-18T02:37:51Z"},{"alias_kind":"pith_short_12","alias_value":"FVAI6P2OH46D","created_at":"2026-05-18T12:28:28Z"},{"alias_kind":"pith_short_16","alias_value":"FVAI6P2OH46D4XJP","created_at":"2026-05-18T12:28:28Z"},{"alias_kind":"pith_short_8","alias_value":"FVAI6P2O","created_at":"2026-05-18T12:28:28Z"}],"graph_snapshots":[{"event_id":"sha256:c0dd2a258460353cbb7b7d6f972c9e6bbca4b2e5a00b800b23e2f06cf1856c42","target":"graph","created_at":"2026-05-18T02:37:51Z","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"},"paper":{"abstract_excerpt":"The Balloon-borne Large Aperture Submillimeter Telescope for Polarimetry (BLASTPol) was a suborbital experiment designed to map magnetic fields in order to study their role in star formation processes. BLASTPol made detailed polarization maps of a number of molecular clouds during its successful flights from Antarctica in 2010 and 2012. We present the next-generation BLASTPol instrument (BLAST-TNG) that will build off the success of the previous experiment and continue its role as a unique instrument and a test bed for new technologies. With a 16-fold increase in mapping speed, BLAST-TNG will ","authors_text":"Bradley J. Dober, Carole Tucker, Christopher E. Groppi, Dale Li, Dan Becker, David P. Pappas, Derek Ward-Thompson, Douglas Scott, Enzo Pascale, Fabio P. Santos, Francesco E. Angil\\`e, Fumitaka Nakamura, Gene C. Hilton, George Che, Giampaolo Pisano, Giles Novak, Giorgio Savini, Hamdi Mani, Hsiao-mei Cho, James A. Beall, Jeffrey Klein, Jeff Van Lanen, Jiansong Gao, Joel N. Ullom, Johannes Hubmayr, Kent D. Irwin, Kristi J. Bradford, Laura M. Fissel, Mark J. Devlin, Matthew Underhill, Michael R. Vissers, Nathan P. Lourie, Nicholas Galitzki, Peter A. R. Ade, Peter Ashton, Peter G. Martin, Philip Mauskopf, Sara Stanchfield, Seth Hillbrand, Yasuo Fukui, Zhi-Yun Li","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.IM","submitted_at":"2014-09-24T20:14:34Z","title":"The Next Generation BLAST Experiment"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1409.7084","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:a3a2d6e7d58b172d153e3551443bdb4c59036a975a9cd8b4a3da214f2a619ffb","target":"record","created_at":"2026-05-18T02:37:51Z","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":"4f4775b76bd87d0c73e94b23eeed80c17bd318ada58bd0aabbea234b7f799e81","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.IM","submitted_at":"2014-09-24T20:14:34Z","title_canon_sha256":"462c8e46f712bd21eb0e213ababe4ec5e45846e4abae596d7758602d58bdeeaa"},"schema_version":"1.0","source":{"id":"1409.7084","kind":"arxiv","version":2}},"canonical_sha256":"2d408f3f4e3f3c3e5d2f07d79e2c3d5c0b3e7b6120b89bde91938542568331eb","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"2d408f3f4e3f3c3e5d2f07d79e2c3d5c0b3e7b6120b89bde91938542568331eb","first_computed_at":"2026-05-18T02:37:51.432336Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T02:37:51.432336Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"ScuxhZT7Bul4uRCFif+I+vZqK4FpTJq+NLePkP4RNU5UlZu/PAAkg9+BS/cHMc4pkaVKRC4PjTa3ZLZns5PqAw==","signature_status":"signed_v1","signed_at":"2026-05-18T02:37:51.432961Z","signed_message":"canonical_sha256_bytes"},"source_id":"1409.7084","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:a3a2d6e7d58b172d153e3551443bdb4c59036a975a9cd8b4a3da214f2a619ffb","sha256:c0dd2a258460353cbb7b7d6f972c9e6bbca4b2e5a00b800b23e2f06cf1856c42"],"state_sha256":"206106caf7240cbf8a83ef629718caa4c17556d333f92117e918fa1a6e2007c0"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"TBckIUw5NbOM8YgkAgYxmvcpsnUnW39qzsf0F2+FMhi4fI+5LWOwm3oNbNQUpoqAe/lH/whXjePCuWdZnjC7Aw==","signed_message":"bundle_sha256_bytes","signed_at":"2026-05-31T23:36:26.631538Z","bundle_sha256":"5aa8642fa63e0506406bd825ca88a10f89c6d58c9a4f89397a36db0f1fa7e416"}}