{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2021:U4ONIJUMZWZCOC6FDEGVZ5ULAK","short_pith_number":"pith:U4ONIJUM","canonical_record":{"source":{"id":"2112.08182","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2021-12-15T15:03:04Z","cross_cats_sorted":["astro-ph.SR"],"title_canon_sha256":"29fc1ac7509bfd732537ecb80b37745bf66d0b43cd8ab18b4213f54409b2665f","abstract_canon_sha256":"2e0931c058e18569975b5e53cd72176f632e062f2d9fcf67b28b4560c95fbef5"},"schema_version":"1.0"},"canonical_sha256":"a71cd4268ccdb2270bc5190d5cf68b02b6daa577ea50ad49d815e0f25ce208ba","source":{"kind":"arxiv","id":"2112.08182","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2112.08182","created_at":"2026-07-05T04:27:49Z"},{"alias_kind":"arxiv_version","alias_value":"2112.08182v1","created_at":"2026-07-05T04:27:49Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2112.08182","created_at":"2026-07-05T04:27:49Z"},{"alias_kind":"pith_short_12","alias_value":"U4ONIJUMZWZC","created_at":"2026-07-05T04:27:49Z"},{"alias_kind":"pith_short_16","alias_value":"U4ONIJUMZWZCOC6F","created_at":"2026-07-05T04:27:49Z"},{"alias_kind":"pith_short_8","alias_value":"U4ONIJUM","created_at":"2026-07-05T04:27:49Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2021:U4ONIJUMZWZCOC6FDEGVZ5ULAK","target":"record","payload":{"canonical_record":{"source":{"id":"2112.08182","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2021-12-15T15:03:04Z","cross_cats_sorted":["astro-ph.SR"],"title_canon_sha256":"29fc1ac7509bfd732537ecb80b37745bf66d0b43cd8ab18b4213f54409b2665f","abstract_canon_sha256":"2e0931c058e18569975b5e53cd72176f632e062f2d9fcf67b28b4560c95fbef5"},"schema_version":"1.0"},"canonical_sha256":"a71cd4268ccdb2270bc5190d5cf68b02b6daa577ea50ad49d815e0f25ce208ba","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-05T04:27:49.779753Z","signature_b64":"zf0CSMN2kp+V/HICsLJy0C3TxtpB92VdRvBYgcVo9hRTbkLcjc4KtONWHDa0O4y+SzF56HWrDIVjO/+J9S1dDA==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"a71cd4268ccdb2270bc5190d5cf68b02b6daa577ea50ad49d815e0f25ce208ba","last_reissued_at":"2026-07-05T04:27:49.779235Z","signature_status":"signed_v1","first_computed_at":"2026-07-05T04:27:49.779235Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"2112.08182","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":"2026-07-05T04:27:49Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"Tr7VYNzPJQqJ5jvK+YeQmLdM2RteXzAbq9RSvFsrwHMkdeHSNfRGtVPTulHzDnZTA0D8M5u2ZmzFCk3IfAXCCQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-15T11:56:37.678397Z"},"content_sha256":"1fcab79557cc04809f5e1db6f395dc6bfbf82565710c32c837c3359c1476af56","schema_version":"1.0","event_id":"sha256:1fcab79557cc04809f5e1db6f395dc6bfbf82565710c32c837c3359c1476af56"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2021:U4ONIJUMZWZCOC6FDEGVZ5ULAK","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"ALMA-IMF I -- Investigating the origin of stellar masses: Introduction to the Large Program and first results","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["astro-ph.SR"],"primary_cat":"astro-ph.GA","authors_text":"A. E. Guzm\\'an, A. Ginsburg, A. Gusdorf, A. L\\'opez-Sepulcre, A. Men'shchikov, A. M. Stutz, A. P. M. Towner, A. P. Whitworth, B. Lefloch, B. Svoboda, B. Thomasson, B. Wu, C. Battersby, D. D\\'iaz-Gonz\\'alez, D. Walker, E. Chapillon, E. Moraux, E. Rosolowsky, F. Herpin, F. Louvet, F. Motte, F. Nakamura, F. Olguin, F. Schuller, F. Wyrowski, G. Busquet, H.-L. Liu, H.-R. V. Chen, I. Joncour, J. Bally, J. Braine, J. Di Francesco, J.-F. Robitaille, J. Molet, K. M. Menten, K. Tatematsu, L. Bronfman, L. Maud, L. Mundy, M. Armante, M. Bonfand, M. Fern\\'andez-L\\'opez, M. Gonz\\'alez, N. A. Sandoval-Garrido, N. Brouillet, N. Cunningham, N. Izumi, N. Reyes, P. Dell'Ova, P. Hennebelle, P. Lesaffre, P. Sanhueza, Q. Nguyen Luong, R. Galv\\'an-Madrid, R. H. \\'Alvarez-Guti\\'errez, R. Mignon-Risse, S. Bontemps, S. D. Reyes Reyes, T. Baug, T. Csengeri, T. Nony, X. Lu, Y.-N. Lee, Y. Pouteau","submitted_at":"2021-12-15T15:03:04Z","abstract_excerpt":"The ALMA-IMF Large Program imaged a total noncontiguous area of 53pc2, covering 15 extreme, nearby protoclusters of the Milky Way. They were selected to span relevant early protocluster evolutionary stages. Our 1.3mm and 3mm observations provide continuum images that are homogeneously sensitive to point-like cores with masses of 0.2 and 0.6Msun, respectively, with a matched spatial resolution of 2000au. We also detect lines that probe the protocluster structure, kinematics, chemistry, and feedback over scales from clouds to filaments to cores. We classify ALMA-IMF protoclusters as Young, Inter"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2112.08182","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/2112.08182/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":"2026-07-05T04:27:49Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"mJ/EUHBiXx3labhYJ48/XyzxOmpgO4AAaqp8KT34Vzu4ypIr3XaXASxEMOMItppQQmnqP0Y/woraT3kesPcZBw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-15T11:56:37.678920Z"},"content_sha256":"bdab1aa8c30c31071ab6fca979023f6cee0e2757437aeb6b9e47a69b5be10da7","schema_version":"1.0","event_id":"sha256:bdab1aa8c30c31071ab6fca979023f6cee0e2757437aeb6b9e47a69b5be10da7"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/U4ONIJUMZWZCOC6FDEGVZ5ULAK/bundle.json","state_url":"https://pith.science/pith/U4ONIJUMZWZCOC6FDEGVZ5ULAK/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/U4ONIJUMZWZCOC6FDEGVZ5ULAK/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":"2026-08-15T11:56:37Z","links":{"resolver":"https://pith.science/pith/U4ONIJUMZWZCOC6FDEGVZ5ULAK","bundle":"https://pith.science/pith/U4ONIJUMZWZCOC6FDEGVZ5ULAK/bundle.json","state":"https://pith.science/pith/U4ONIJUMZWZCOC6FDEGVZ5ULAK/state.json","well_known_bundle":"https://pith.science/.well-known/pith/U4ONIJUMZWZCOC6FDEGVZ5ULAK/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2021:U4ONIJUMZWZCOC6FDEGVZ5ULAK","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":"2e0931c058e18569975b5e53cd72176f632e062f2d9fcf67b28b4560c95fbef5","cross_cats_sorted":["astro-ph.SR"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2021-12-15T15:03:04Z","title_canon_sha256":"29fc1ac7509bfd732537ecb80b37745bf66d0b43cd8ab18b4213f54409b2665f"},"schema_version":"1.0","source":{"id":"2112.08182","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2112.08182","created_at":"2026-07-05T04:27:49Z"},{"alias_kind":"arxiv_version","alias_value":"2112.08182v1","created_at":"2026-07-05T04:27:49Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2112.08182","created_at":"2026-07-05T04:27:49Z"},{"alias_kind":"pith_short_12","alias_value":"U4ONIJUMZWZC","created_at":"2026-07-05T04:27:49Z"},{"alias_kind":"pith_short_16","alias_value":"U4ONIJUMZWZCOC6F","created_at":"2026-07-05T04:27:49Z"},{"alias_kind":"pith_short_8","alias_value":"U4ONIJUM","created_at":"2026-07-05T04:27:49Z"}],"graph_snapshots":[{"event_id":"sha256:bdab1aa8c30c31071ab6fca979023f6cee0e2757437aeb6b9e47a69b5be10da7","target":"graph","created_at":"2026-07-05T04:27:49Z","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/2112.08182/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"The ALMA-IMF Large Program imaged a total noncontiguous area of 53pc2, covering 15 extreme, nearby protoclusters of the Milky Way. They were selected to span relevant early protocluster evolutionary stages. Our 1.3mm and 3mm observations provide continuum images that are homogeneously sensitive to point-like cores with masses of 0.2 and 0.6Msun, respectively, with a matched spatial resolution of 2000au. We also detect lines that probe the protocluster structure, kinematics, chemistry, and feedback over scales from clouds to filaments to cores. We classify ALMA-IMF protoclusters as Young, Inter","authors_text":"A. E. Guzm\\'an, A. Ginsburg, A. Gusdorf, A. L\\'opez-Sepulcre, A. Men'shchikov, A. M. Stutz, A. P. M. Towner, A. P. Whitworth, B. Lefloch, B. Svoboda, B. Thomasson, B. Wu, C. Battersby, D. D\\'iaz-Gonz\\'alez, D. Walker, E. Chapillon, E. Moraux, E. Rosolowsky, F. Herpin, F. Louvet, F. Motte, F. Nakamura, F. Olguin, F. Schuller, F. Wyrowski, G. Busquet, H.-L. Liu, H.-R. V. Chen, I. Joncour, J. Bally, J. Braine, J. Di Francesco, J.-F. Robitaille, J. Molet, K. M. Menten, K. Tatematsu, L. Bronfman, L. Maud, L. Mundy, M. Armante, M. Bonfand, M. Fern\\'andez-L\\'opez, M. Gonz\\'alez, N. A. Sandoval-Garrido, N. Brouillet, N. Cunningham, N. Izumi, N. Reyes, P. Dell'Ova, P. Hennebelle, P. Lesaffre, P. Sanhueza, Q. Nguyen Luong, R. Galv\\'an-Madrid, R. H. \\'Alvarez-Guti\\'errez, R. Mignon-Risse, S. Bontemps, S. D. Reyes Reyes, T. Baug, T. Csengeri, T. Nony, X. Lu, Y.-N. Lee, Y. Pouteau","cross_cats":["astro-ph.SR"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2021-12-15T15:03:04Z","title":"ALMA-IMF I -- Investigating the origin of stellar masses: Introduction to the Large Program and first results"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2112.08182","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":"sha256:1fcab79557cc04809f5e1db6f395dc6bfbf82565710c32c837c3359c1476af56","target":"record","created_at":"2026-07-05T04:27:49Z","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":"2e0931c058e18569975b5e53cd72176f632e062f2d9fcf67b28b4560c95fbef5","cross_cats_sorted":["astro-ph.SR"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2021-12-15T15:03:04Z","title_canon_sha256":"29fc1ac7509bfd732537ecb80b37745bf66d0b43cd8ab18b4213f54409b2665f"},"schema_version":"1.0","source":{"id":"2112.08182","kind":"arxiv","version":1}},"canonical_sha256":"a71cd4268ccdb2270bc5190d5cf68b02b6daa577ea50ad49d815e0f25ce208ba","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"a71cd4268ccdb2270bc5190d5cf68b02b6daa577ea50ad49d815e0f25ce208ba","first_computed_at":"2026-07-05T04:27:49.779235Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T04:27:49.779235Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"zf0CSMN2kp+V/HICsLJy0C3TxtpB92VdRvBYgcVo9hRTbkLcjc4KtONWHDa0O4y+SzF56HWrDIVjO/+J9S1dDA==","signature_status":"signed_v1","signed_at":"2026-07-05T04:27:49.779753Z","signed_message":"canonical_sha256_bytes"},"source_id":"2112.08182","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:1fcab79557cc04809f5e1db6f395dc6bfbf82565710c32c837c3359c1476af56","sha256:bdab1aa8c30c31071ab6fca979023f6cee0e2757437aeb6b9e47a69b5be10da7"],"state_sha256":"ecb5990d44deaeaad266326b6b7ac9c4b077f9d1e709d1aba172644af3b6e7a8"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"gfcSARxncSYRAROxbW/isil+sVyp9yKlfrI3gQLi7pzVu86ELfklzGUehYiD1yNcVoMkZM8PXfyG52Pwta5vBg==","signed_message":"bundle_sha256_bytes","signed_at":"2026-08-15T11:56:37.682232Z","bundle_sha256":"196524fd8a2ccd8e4ed5d20c2b49deb797120cc06db0680766781c20f474db04"}}