{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2018:N3VHDRLP2QUNFUWD43KZK7RO6W","short_pith_number":"pith:N3VHDRLP","canonical_record":{"source":{"id":"1807.01374","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.ins-det","submitted_at":"2018-07-03T21:18:09Z","cross_cats_sorted":[],"title_canon_sha256":"50b7fc1a170cdb994f1cf946420ae9fe7633f84703109f9994c5a4ccff28682b","abstract_canon_sha256":"61ffb0aca01d1297004143f60ce9cc8199f4ac560b7206df7aebd49a264cbbb3"},"schema_version":"1.0"},"canonical_sha256":"6eea71c56fd428d2d2c3e6d5957e2ef5bf4056a697aa09f77f63bcb4470a1639","source":{"kind":"arxiv","id":"1807.01374","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1807.01374","created_at":"2026-05-18T00:11:29Z"},{"alias_kind":"arxiv_version","alias_value":"1807.01374v1","created_at":"2026-05-18T00:11:29Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1807.01374","created_at":"2026-05-18T00:11:29Z"},{"alias_kind":"pith_short_12","alias_value":"N3VHDRLP2QUN","created_at":"2026-05-18T12:32:40Z"},{"alias_kind":"pith_short_16","alias_value":"N3VHDRLP2QUNFUWD","created_at":"2026-05-18T12:32:40Z"},{"alias_kind":"pith_short_8","alias_value":"N3VHDRLP","created_at":"2026-05-18T12:32:40Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2018:N3VHDRLP2QUNFUWD43KZK7RO6W","target":"record","payload":{"canonical_record":{"source":{"id":"1807.01374","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.ins-det","submitted_at":"2018-07-03T21:18:09Z","cross_cats_sorted":[],"title_canon_sha256":"50b7fc1a170cdb994f1cf946420ae9fe7633f84703109f9994c5a4ccff28682b","abstract_canon_sha256":"61ffb0aca01d1297004143f60ce9cc8199f4ac560b7206df7aebd49a264cbbb3"},"schema_version":"1.0"},"canonical_sha256":"6eea71c56fd428d2d2c3e6d5957e2ef5bf4056a697aa09f77f63bcb4470a1639","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T00:11:29.804611Z","signature_b64":"nwh8zklObtOEPgf9r7ZAQ27RBEd1uNfUNt9LRo3OXt8sOBRUYEb3Hw3zV0btZcUWFW1ICaZzcxXD4HfIsC3jBw==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"6eea71c56fd428d2d2c3e6d5957e2ef5bf4056a697aa09f77f63bcb4470a1639","last_reissued_at":"2026-05-18T00:11:29.804248Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T00:11:29.804248Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1807.01374","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":"2026-05-18T00:11:29Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"fwIatj9cJ1wxqfVwfndvfMjP+ozwXMVCED1mHj3UACiDCsldmyvv0ra5GQBRI1o5TEcaSrqsJl2eob70kebzDA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-10T09:01:13.946752Z"},"content_sha256":"083d020169747d8bc9bc06f6892065dccb651bd026db27dc1f50a096fbf83143","schema_version":"1.0","event_id":"sha256:083d020169747d8bc9bc06f6892065dccb651bd026db27dc1f50a096fbf83143"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2018:N3VHDRLP2QUNFUWD43KZK7RO6W","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Pressure Dependence of Carbon Foam Bonding Strength using Reactive Film","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"physics.ins-det","authors_text":"Christian Neher, Gayle Zheng, Jeremy Hansen, Jeske Dioquino, Mani Tripathi, Maxwell Chertok, Michael Irving, Yao Yao","submitted_at":"2018-07-03T21:18:09Z","abstract_excerpt":"Reactive bonding film is a relatively new method of fusing materials with the potential to meet needs of particle tracker mechanics under development due to its resulting tensile strength, thermal conductivity, radiation tolerance, and low mass. Employing a new apparatus to vary pressure applied to samples during bonding, we find improved ultimate tensile strengths compared with previous results."},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1807.01374","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":"2026-05-18T00:11:29Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"r5WBWFkuddbKSZwk/rFjH7foNOqWzScCBt2MD4ajf40mIyUEi5eYVOfOcMxIOJC227p1YYWqyPSJRfL8bBCDDA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-10T09:01:13.947496Z"},"content_sha256":"19b07b856bf968c2e8586c24c5ecad39a10ef914c271d112f4cfb48da074704f","schema_version":"1.0","event_id":"sha256:19b07b856bf968c2e8586c24c5ecad39a10ef914c271d112f4cfb48da074704f"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/N3VHDRLP2QUNFUWD43KZK7RO6W/bundle.json","state_url":"https://pith.science/pith/N3VHDRLP2QUNFUWD43KZK7RO6W/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/N3VHDRLP2QUNFUWD43KZK7RO6W/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":"2026-06-10T09:01:13Z","links":{"resolver":"https://pith.science/pith/N3VHDRLP2QUNFUWD43KZK7RO6W","bundle":"https://pith.science/pith/N3VHDRLP2QUNFUWD43KZK7RO6W/bundle.json","state":"https://pith.science/pith/N3VHDRLP2QUNFUWD43KZK7RO6W/state.json","well_known_bundle":"https://pith.science/.well-known/pith/N3VHDRLP2QUNFUWD43KZK7RO6W/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2018:N3VHDRLP2QUNFUWD43KZK7RO6W","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":"61ffb0aca01d1297004143f60ce9cc8199f4ac560b7206df7aebd49a264cbbb3","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.ins-det","submitted_at":"2018-07-03T21:18:09Z","title_canon_sha256":"50b7fc1a170cdb994f1cf946420ae9fe7633f84703109f9994c5a4ccff28682b"},"schema_version":"1.0","source":{"id":"1807.01374","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1807.01374","created_at":"2026-05-18T00:11:29Z"},{"alias_kind":"arxiv_version","alias_value":"1807.01374v1","created_at":"2026-05-18T00:11:29Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1807.01374","created_at":"2026-05-18T00:11:29Z"},{"alias_kind":"pith_short_12","alias_value":"N3VHDRLP2QUN","created_at":"2026-05-18T12:32:40Z"},{"alias_kind":"pith_short_16","alias_value":"N3VHDRLP2QUNFUWD","created_at":"2026-05-18T12:32:40Z"},{"alias_kind":"pith_short_8","alias_value":"N3VHDRLP","created_at":"2026-05-18T12:32:40Z"}],"graph_snapshots":[{"event_id":"sha256:19b07b856bf968c2e8586c24c5ecad39a10ef914c271d112f4cfb48da074704f","target":"graph","created_at":"2026-05-18T00:11:29Z","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":"Reactive bonding film is a relatively new method of fusing materials with the potential to meet needs of particle tracker mechanics under development due to its resulting tensile strength, thermal conductivity, radiation tolerance, and low mass. Employing a new apparatus to vary pressure applied to samples during bonding, we find improved ultimate tensile strengths compared with previous results.","authors_text":"Christian Neher, Gayle Zheng, Jeremy Hansen, Jeske Dioquino, Mani Tripathi, Maxwell Chertok, Michael Irving, Yao Yao","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.ins-det","submitted_at":"2018-07-03T21:18:09Z","title":"Pressure Dependence of Carbon Foam Bonding Strength using Reactive Film"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1807.01374","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":"sha256:083d020169747d8bc9bc06f6892065dccb651bd026db27dc1f50a096fbf83143","target":"record","created_at":"2026-05-18T00:11:29Z","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":"61ffb0aca01d1297004143f60ce9cc8199f4ac560b7206df7aebd49a264cbbb3","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.ins-det","submitted_at":"2018-07-03T21:18:09Z","title_canon_sha256":"50b7fc1a170cdb994f1cf946420ae9fe7633f84703109f9994c5a4ccff28682b"},"schema_version":"1.0","source":{"id":"1807.01374","kind":"arxiv","version":1}},"canonical_sha256":"6eea71c56fd428d2d2c3e6d5957e2ef5bf4056a697aa09f77f63bcb4470a1639","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"6eea71c56fd428d2d2c3e6d5957e2ef5bf4056a697aa09f77f63bcb4470a1639","first_computed_at":"2026-05-18T00:11:29.804248Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T00:11:29.804248Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"nwh8zklObtOEPgf9r7ZAQ27RBEd1uNfUNt9LRo3OXt8sOBRUYEb3Hw3zV0btZcUWFW1ICaZzcxXD4HfIsC3jBw==","signature_status":"signed_v1","signed_at":"2026-05-18T00:11:29.804611Z","signed_message":"canonical_sha256_bytes"},"source_id":"1807.01374","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:083d020169747d8bc9bc06f6892065dccb651bd026db27dc1f50a096fbf83143","sha256:19b07b856bf968c2e8586c24c5ecad39a10ef914c271d112f4cfb48da074704f"],"state_sha256":"a2f623f084cd5be9c0f359a2747d346d03b359fb7db240865996d6ecce57703b"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"kbSp75wJ/+2dnUHhW8CIEL25wYr3dlJZs59aDZyPLJLQmt4MI7+v/pXmLq0RrXqpWXO8ldgcbRzSkzNFy0HYBg==","signed_message":"bundle_sha256_bytes","signed_at":"2026-06-10T09:01:13.951812Z","bundle_sha256":"aef7df52fd5b184be40414779e0b24ea81279868ceed964497583c4a6834fbc9"}}