{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2018:AXT4JXWDX6POBI2WP7PKVGZHOY","short_pith_number":"pith:AXT4JXWD","canonical_record":{"source":{"id":"1805.09990","kind":"arxiv","version":1},"metadata":{"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"cond-mat.mtrl-sci","submitted_at":"2018-05-25T06:10:07Z","cross_cats_sorted":[],"title_canon_sha256":"262e66968967e29563c8ae30edce0c0b2f8cfe4b670682d1ab25111a3775a79d","abstract_canon_sha256":"fc8193ee0b70d92fa6392b33e2e1ae1a2a9f90311be977c145ea6524e8dbb989"},"schema_version":"1.0"},"canonical_sha256":"05e7c4dec3bf9ee0a3567fdeaa9b27761c3ab9bbb274eae9c0631a7e71f47dba","source":{"kind":"arxiv","id":"1805.09990","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1805.09990","created_at":"2026-05-18T00:14:58Z"},{"alias_kind":"arxiv_version","alias_value":"1805.09990v1","created_at":"2026-05-18T00:14:58Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1805.09990","created_at":"2026-05-18T00:14:58Z"},{"alias_kind":"pith_short_12","alias_value":"AXT4JXWDX6PO","created_at":"2026-05-18T12:32:13Z"},{"alias_kind":"pith_short_16","alias_value":"AXT4JXWDX6POBI2W","created_at":"2026-05-18T12:32:13Z"},{"alias_kind":"pith_short_8","alias_value":"AXT4JXWD","created_at":"2026-05-18T12:32:13Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2018:AXT4JXWDX6POBI2WP7PKVGZHOY","target":"record","payload":{"canonical_record":{"source":{"id":"1805.09990","kind":"arxiv","version":1},"metadata":{"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"cond-mat.mtrl-sci","submitted_at":"2018-05-25T06:10:07Z","cross_cats_sorted":[],"title_canon_sha256":"262e66968967e29563c8ae30edce0c0b2f8cfe4b670682d1ab25111a3775a79d","abstract_canon_sha256":"fc8193ee0b70d92fa6392b33e2e1ae1a2a9f90311be977c145ea6524e8dbb989"},"schema_version":"1.0"},"canonical_sha256":"05e7c4dec3bf9ee0a3567fdeaa9b27761c3ab9bbb274eae9c0631a7e71f47dba","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T00:14:58.576382Z","signature_b64":"xceOq3/U70BzxAoaxdWGxf3YpMG+F4g5KjeWl6XAtv2+7SqSKh61OS3+709DVkkDtcdfCoMyhJmM82MQhLqiBA==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"05e7c4dec3bf9ee0a3567fdeaa9b27761c3ab9bbb274eae9c0631a7e71f47dba","last_reissued_at":"2026-05-18T00:14:58.575628Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T00:14:58.575628Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1805.09990","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":"2026-05-18T00:14:58Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"rSH6NBjXxtJBQWLu8xkOdk41+HVI9V7jpIuDNJoME9CZnNO2/9WDQoALE5ouZtlVBBY6GdqwB58i/tr5G6d2BA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-07-05T14:37:23.926163Z"},"content_sha256":"030828406f30c8380d04554443edcc40435bd0285119722be1fe177badb371c4","schema_version":"1.0","event_id":"sha256:030828406f30c8380d04554443edcc40435bd0285119722be1fe177badb371c4"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2018:AXT4JXWDX6POBI2WP7PKVGZHOY","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Characterization of ultra-low carbon steel: A preliminary approach to investigate the quality and standards of locally-available steel","license":"http://creativecommons.org/licenses/by/4.0/","headline":"","cross_cats":[],"primary_cat":"cond-mat.mtrl-sci","authors_text":"Abdur Rahim, Azim Khan, Falak Niaz, Muhammad Riaz Khan, Saeed Ullah, Sulaiman, Syed Sohail Ahmad Shah","submitted_at":"2018-05-25T06:10:07Z","abstract_excerpt":"In the present work, experimental study has been carried out to expose the thermal, mechanical, and microstructural properties of low carbon steel as well as to inspects the influence of etchant concentration and etching time on its microstructure. Ultra-low carbon steel, in the form of a sheet, was collected from the Mughal Steel Industry, Peshawar, Pakistan. The sample was chemically etched, using Nital as an etchant, by two different methods: first, by changing the etching time while keeping the composition of etchant the same and second, by keeping the time constant while varying the etcha"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1805.09990","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":""},"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":"2026-05-18T00:14:58Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"71fmC0B4CM5msGwK6NHig7goXrl//5YQHgFwaIQuHjXzJk0NXvbdCC/DYfkitnFp8BIppqp2LNbTGR2CzSz5Bg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-07-05T14:37:23.926742Z"},"content_sha256":"7f9f32df26486fe995453a8489e553dfdbd4b2c95e9b5e1218fbd353df7ef930","schema_version":"1.0","event_id":"sha256:7f9f32df26486fe995453a8489e553dfdbd4b2c95e9b5e1218fbd353df7ef930"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/AXT4JXWDX6POBI2WP7PKVGZHOY/bundle.json","state_url":"https://pith.science/pith/AXT4JXWDX6POBI2WP7PKVGZHOY/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/AXT4JXWDX6POBI2WP7PKVGZHOY/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":"2026-07-05T14:37:23Z","links":{"resolver":"https://pith.science/pith/AXT4JXWDX6POBI2WP7PKVGZHOY","bundle":"https://pith.science/pith/AXT4JXWDX6POBI2WP7PKVGZHOY/bundle.json","state":"https://pith.science/pith/AXT4JXWDX6POBI2WP7PKVGZHOY/state.json","well_known_bundle":"https://pith.science/.well-known/pith/AXT4JXWDX6POBI2WP7PKVGZHOY/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2018:AXT4JXWDX6POBI2WP7PKVGZHOY","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":"fc8193ee0b70d92fa6392b33e2e1ae1a2a9f90311be977c145ea6524e8dbb989","cross_cats_sorted":[],"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"cond-mat.mtrl-sci","submitted_at":"2018-05-25T06:10:07Z","title_canon_sha256":"262e66968967e29563c8ae30edce0c0b2f8cfe4b670682d1ab25111a3775a79d"},"schema_version":"1.0","source":{"id":"1805.09990","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1805.09990","created_at":"2026-05-18T00:14:58Z"},{"alias_kind":"arxiv_version","alias_value":"1805.09990v1","created_at":"2026-05-18T00:14:58Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1805.09990","created_at":"2026-05-18T00:14:58Z"},{"alias_kind":"pith_short_12","alias_value":"AXT4JXWDX6PO","created_at":"2026-05-18T12:32:13Z"},{"alias_kind":"pith_short_16","alias_value":"AXT4JXWDX6POBI2W","created_at":"2026-05-18T12:32:13Z"},{"alias_kind":"pith_short_8","alias_value":"AXT4JXWD","created_at":"2026-05-18T12:32:13Z"}],"graph_snapshots":[{"event_id":"sha256:7f9f32df26486fe995453a8489e553dfdbd4b2c95e9b5e1218fbd353df7ef930","target":"graph","created_at":"2026-05-18T00:14:58Z","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":"In the present work, experimental study has been carried out to expose the thermal, mechanical, and microstructural properties of low carbon steel as well as to inspects the influence of etchant concentration and etching time on its microstructure. Ultra-low carbon steel, in the form of a sheet, was collected from the Mughal Steel Industry, Peshawar, Pakistan. The sample was chemically etched, using Nital as an etchant, by two different methods: first, by changing the etching time while keeping the composition of etchant the same and second, by keeping the time constant while varying the etcha","authors_text":"Abdur Rahim, Azim Khan, Falak Niaz, Muhammad Riaz Khan, Saeed Ullah, Sulaiman, Syed Sohail Ahmad Shah","cross_cats":[],"headline":"","license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"cond-mat.mtrl-sci","submitted_at":"2018-05-25T06:10:07Z","title":"Characterization of ultra-low carbon steel: A preliminary approach to investigate the quality and standards of locally-available steel"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1805.09990","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":"sha256:030828406f30c8380d04554443edcc40435bd0285119722be1fe177badb371c4","target":"record","created_at":"2026-05-18T00:14:58Z","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":"fc8193ee0b70d92fa6392b33e2e1ae1a2a9f90311be977c145ea6524e8dbb989","cross_cats_sorted":[],"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"cond-mat.mtrl-sci","submitted_at":"2018-05-25T06:10:07Z","title_canon_sha256":"262e66968967e29563c8ae30edce0c0b2f8cfe4b670682d1ab25111a3775a79d"},"schema_version":"1.0","source":{"id":"1805.09990","kind":"arxiv","version":1}},"canonical_sha256":"05e7c4dec3bf9ee0a3567fdeaa9b27761c3ab9bbb274eae9c0631a7e71f47dba","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"05e7c4dec3bf9ee0a3567fdeaa9b27761c3ab9bbb274eae9c0631a7e71f47dba","first_computed_at":"2026-05-18T00:14:58.575628Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T00:14:58.575628Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"xceOq3/U70BzxAoaxdWGxf3YpMG+F4g5KjeWl6XAtv2+7SqSKh61OS3+709DVkkDtcdfCoMyhJmM82MQhLqiBA==","signature_status":"signed_v1","signed_at":"2026-05-18T00:14:58.576382Z","signed_message":"canonical_sha256_bytes"},"source_id":"1805.09990","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:030828406f30c8380d04554443edcc40435bd0285119722be1fe177badb371c4","sha256:7f9f32df26486fe995453a8489e553dfdbd4b2c95e9b5e1218fbd353df7ef930"],"state_sha256":"6397c32c3c195201a0ab191b13d1649a0f06fc767a89b170b7dd0186886e4413"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"IKtxxPMuepXOJuRd30UJ8xEz5RMgGXOWGafGniC3BdsUvEylwu0WyRmkIolJmgJbzX85e5rbHCEsI9Z3H3M0CA==","signed_message":"bundle_sha256_bytes","signed_at":"2026-07-05T14:37:23.929849Z","bundle_sha256":"38f1aae97c05f0cf4771733bd980ac4d411d4cf3c685636e9c29fecbb272fda0"}}