{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2010:CEPFEQ6CIJFDLNUV63EVQB5TZI","short_pith_number":"pith:CEPFEQ6C","canonical_record":{"source":{"id":"1011.5500","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.CO","submitted_at":"2010-11-24T21:00:00Z","cross_cats_sorted":[],"title_canon_sha256":"430b92f1d44f30ad5de1f174b353e2edeca0a000c6374778967c9ff6376f2e3c","abstract_canon_sha256":"eb6129fd5cef4a4f84803f00a9424dfa019a1791bba169016441f311e821e88b"},"schema_version":"1.0"},"canonical_sha256":"111e5243c2424a35b695f6c95807b3ca0247b1e785183664e66d0149d12ca351","source":{"kind":"arxiv","id":"1011.5500","version":2},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1011.5500","created_at":"2026-05-18T02:04:39Z"},{"alias_kind":"arxiv_version","alias_value":"1011.5500v2","created_at":"2026-05-18T02:04:39Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1011.5500","created_at":"2026-05-18T02:04:39Z"},{"alias_kind":"pith_short_12","alias_value":"CEPFEQ6CIJFD","created_at":"2026-05-18T12:26:05Z"},{"alias_kind":"pith_short_16","alias_value":"CEPFEQ6CIJFDLNUV","created_at":"2026-05-18T12:26:05Z"},{"alias_kind":"pith_short_8","alias_value":"CEPFEQ6C","created_at":"2026-05-18T12:26:05Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2010:CEPFEQ6CIJFDLNUV63EVQB5TZI","target":"record","payload":{"canonical_record":{"source":{"id":"1011.5500","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.CO","submitted_at":"2010-11-24T21:00:00Z","cross_cats_sorted":[],"title_canon_sha256":"430b92f1d44f30ad5de1f174b353e2edeca0a000c6374778967c9ff6376f2e3c","abstract_canon_sha256":"eb6129fd5cef4a4f84803f00a9424dfa019a1791bba169016441f311e821e88b"},"schema_version":"1.0"},"canonical_sha256":"111e5243c2424a35b695f6c95807b3ca0247b1e785183664e66d0149d12ca351","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T02:04:39.267077Z","signature_b64":"NlrO6FYtah8s6o7jTKkqE1eVhkPtom6guGqQZ/VkYqaLxNuRYbgpMITR5uKRRKyQVaLgoDT1XZrCW3DimG0qAA==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"111e5243c2424a35b695f6c95807b3ca0247b1e785183664e66d0149d12ca351","last_reissued_at":"2026-05-18T02:04:39.266375Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T02:04:39.266375Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1011.5500","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":"2026-05-18T02:04:39Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"kKNXH/2k3viHYGpDbQbnqNqbYMSuA6bdhQ+XX4KtEb5QRwXozuj+2cv1bbFr5T+pUgaelSIQtx3fQbLRiL7aAA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-02T00:03:12.080263Z"},"content_sha256":"5d57ba7074dfe8d747ac1d7197af4ce45dda83c30048c7fc6df380eb3cdd1d35","schema_version":"1.0","event_id":"sha256:5d57ba7074dfe8d747ac1d7197af4ce45dda83c30048c7fc6df380eb3cdd1d35"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2010:CEPFEQ6CIJFDLNUV63EVQB5TZI","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Spectroscopic confirmation of two Lyman break galaxies at redshift beyond 7","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.CO","authors_text":"A. Fontana, A. Grazian, A. Moorwood, D. Paris, E. Giallongo, E. Vanzella, K. Boutsia, L. Pentericci, M. Castellano, M. Dickinson, M. Giavalisco, P. Santini, R. Maiolino, S. Cristiani, S. Gallozzi","submitted_at":"2010-11-24T21:00:00Z","abstract_excerpt":"We report the spectroscopic confirmation of two Lyman break galaxies at redshift > 7. The galaxies were observed as part of an ultra-deep spectroscopic campaign with FORS2 at the ESO/VLT for the confirmation of z~7 ``z--band dropout'' candidates selected from our VLT/Hawk-I imaging survey. Both galaxies show a prominent emission line at 9735A and 9858A respectively: the lines have fluxes of ~ 1.6-1.2 x 10^(-17) erg/s/cm2 and exhibit a sharp decline on the blue side and a tail on the red side. The asymmetry is quantitatively comparable to the observed asymmetry in z ~ 6 Ly-alpha lines, where ab"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1011.5500","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":"2026-05-18T02:04:39Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"Xh4MOHZkqFHiFCBkaJGnlsW85EfdDhTsbXgFm70mbpDPSjlCa4DtbxZax9uZ5yOC35K1IGVwQSpyohdHmz3QCw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-02T00:03:12.080618Z"},"content_sha256":"90689bf922b06eeb2afadc4cb168f76835ed983afcaf9030a7487dc69fd15f8e","schema_version":"1.0","event_id":"sha256:90689bf922b06eeb2afadc4cb168f76835ed983afcaf9030a7487dc69fd15f8e"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/CEPFEQ6CIJFDLNUV63EVQB5TZI/bundle.json","state_url":"https://pith.science/pith/CEPFEQ6CIJFDLNUV63EVQB5TZI/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/CEPFEQ6CIJFDLNUV63EVQB5TZI/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":"2026-06-02T00:03:12Z","links":{"resolver":"https://pith.science/pith/CEPFEQ6CIJFDLNUV63EVQB5TZI","bundle":"https://pith.science/pith/CEPFEQ6CIJFDLNUV63EVQB5TZI/bundle.json","state":"https://pith.science/pith/CEPFEQ6CIJFDLNUV63EVQB5TZI/state.json","well_known_bundle":"https://pith.science/.well-known/pith/CEPFEQ6CIJFDLNUV63EVQB5TZI/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2010:CEPFEQ6CIJFDLNUV63EVQB5TZI","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":"eb6129fd5cef4a4f84803f00a9424dfa019a1791bba169016441f311e821e88b","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.CO","submitted_at":"2010-11-24T21:00:00Z","title_canon_sha256":"430b92f1d44f30ad5de1f174b353e2edeca0a000c6374778967c9ff6376f2e3c"},"schema_version":"1.0","source":{"id":"1011.5500","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1011.5500","created_at":"2026-05-18T02:04:39Z"},{"alias_kind":"arxiv_version","alias_value":"1011.5500v2","created_at":"2026-05-18T02:04:39Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1011.5500","created_at":"2026-05-18T02:04:39Z"},{"alias_kind":"pith_short_12","alias_value":"CEPFEQ6CIJFD","created_at":"2026-05-18T12:26:05Z"},{"alias_kind":"pith_short_16","alias_value":"CEPFEQ6CIJFDLNUV","created_at":"2026-05-18T12:26:05Z"},{"alias_kind":"pith_short_8","alias_value":"CEPFEQ6C","created_at":"2026-05-18T12:26:05Z"}],"graph_snapshots":[{"event_id":"sha256:90689bf922b06eeb2afadc4cb168f76835ed983afcaf9030a7487dc69fd15f8e","target":"graph","created_at":"2026-05-18T02:04:39Z","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":"We report the spectroscopic confirmation of two Lyman break galaxies at redshift > 7. The galaxies were observed as part of an ultra-deep spectroscopic campaign with FORS2 at the ESO/VLT for the confirmation of z~7 ``z--band dropout'' candidates selected from our VLT/Hawk-I imaging survey. Both galaxies show a prominent emission line at 9735A and 9858A respectively: the lines have fluxes of ~ 1.6-1.2 x 10^(-17) erg/s/cm2 and exhibit a sharp decline on the blue side and a tail on the red side. The asymmetry is quantitatively comparable to the observed asymmetry in z ~ 6 Ly-alpha lines, where ab","authors_text":"A. Fontana, A. Grazian, A. Moorwood, D. Paris, E. Giallongo, E. Vanzella, K. Boutsia, L. Pentericci, M. Castellano, M. Dickinson, M. Giavalisco, P. Santini, R. Maiolino, S. Cristiani, S. Gallozzi","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.CO","submitted_at":"2010-11-24T21:00:00Z","title":"Spectroscopic confirmation of two Lyman break galaxies at redshift beyond 7"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1011.5500","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":"sha256:5d57ba7074dfe8d747ac1d7197af4ce45dda83c30048c7fc6df380eb3cdd1d35","target":"record","created_at":"2026-05-18T02:04:39Z","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":"eb6129fd5cef4a4f84803f00a9424dfa019a1791bba169016441f311e821e88b","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.CO","submitted_at":"2010-11-24T21:00:00Z","title_canon_sha256":"430b92f1d44f30ad5de1f174b353e2edeca0a000c6374778967c9ff6376f2e3c"},"schema_version":"1.0","source":{"id":"1011.5500","kind":"arxiv","version":2}},"canonical_sha256":"111e5243c2424a35b695f6c95807b3ca0247b1e785183664e66d0149d12ca351","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"111e5243c2424a35b695f6c95807b3ca0247b1e785183664e66d0149d12ca351","first_computed_at":"2026-05-18T02:04:39.266375Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T02:04:39.266375Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"NlrO6FYtah8s6o7jTKkqE1eVhkPtom6guGqQZ/VkYqaLxNuRYbgpMITR5uKRRKyQVaLgoDT1XZrCW3DimG0qAA==","signature_status":"signed_v1","signed_at":"2026-05-18T02:04:39.267077Z","signed_message":"canonical_sha256_bytes"},"source_id":"1011.5500","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:5d57ba7074dfe8d747ac1d7197af4ce45dda83c30048c7fc6df380eb3cdd1d35","sha256:90689bf922b06eeb2afadc4cb168f76835ed983afcaf9030a7487dc69fd15f8e"],"state_sha256":"3efdd03c7eb925e5394f1a7636cdf2b126ce63a6d550b25350b1be5fad265394"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"uRb3pJj3oiqD5Wc2KAg7AOzfB1QSh0fsF2Qy/iCiCJly9G2KTT38lEPB0oAXwIPjKFfg5FYDPt32wvM2C0vrDg==","signed_message":"bundle_sha256_bytes","signed_at":"2026-06-02T00:03:12.082897Z","bundle_sha256":"d146b66cd9567aef42a30d9a5bccf3ad1fc1751faf2c088f4e3d93b972926a2c"}}