{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2025:DYLJH2GOR5NZDBU7NDRPVKXCQ7","short_pith_number":"pith:DYLJH2GO","canonical_record":{"source":{"id":"2505.22780","kind":"arxiv","version":1},"metadata":{"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"physics.geo-ph","submitted_at":"2025-05-28T18:47:56Z","cross_cats_sorted":[],"title_canon_sha256":"abb0c11bc7613c4154bfbfd1cdce6cd542ce11a7d38e6c6de06906091ab723a0","abstract_canon_sha256":"2165913f05c56483fdbb767bb6022eb67bf9e38d52ee0ed08e5a3d35fd951966"},"schema_version":"1.0"},"canonical_sha256":"1e1693e8ce8f5b91869f68e2faaae287e68b01cc1a3c0908e2407bb6c43703d9","source":{"kind":"arxiv","id":"2505.22780","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2505.22780","created_at":"2026-07-05T11:11:49Z"},{"alias_kind":"arxiv_version","alias_value":"2505.22780v1","created_at":"2026-07-05T11:11:49Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2505.22780","created_at":"2026-07-05T11:11:49Z"},{"alias_kind":"pith_short_12","alias_value":"DYLJH2GOR5NZ","created_at":"2026-07-05T11:11:49Z"},{"alias_kind":"pith_short_16","alias_value":"DYLJH2GOR5NZDBU7","created_at":"2026-07-05T11:11:49Z"},{"alias_kind":"pith_short_8","alias_value":"DYLJH2GO","created_at":"2026-07-05T11:11:49Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2025:DYLJH2GOR5NZDBU7NDRPVKXCQ7","target":"record","payload":{"canonical_record":{"source":{"id":"2505.22780","kind":"arxiv","version":1},"metadata":{"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"physics.geo-ph","submitted_at":"2025-05-28T18:47:56Z","cross_cats_sorted":[],"title_canon_sha256":"abb0c11bc7613c4154bfbfd1cdce6cd542ce11a7d38e6c6de06906091ab723a0","abstract_canon_sha256":"2165913f05c56483fdbb767bb6022eb67bf9e38d52ee0ed08e5a3d35fd951966"},"schema_version":"1.0"},"canonical_sha256":"1e1693e8ce8f5b91869f68e2faaae287e68b01cc1a3c0908e2407bb6c43703d9","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-05T11:11:49.853692Z","signature_b64":"O4kkaU3/n5CMGXSLqFhpd+c4xpe++K/IO6mXpVxk9f5j0XLunB5BYHFEc+i+vUTMuxxe2Td4IkgpRbgaQFIVDQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"1e1693e8ce8f5b91869f68e2faaae287e68b01cc1a3c0908e2407bb6c43703d9","last_reissued_at":"2026-07-05T11:11:49.853217Z","signature_status":"signed_v1","first_computed_at":"2026-07-05T11:11:49.853217Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"2505.22780","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":"2026-07-05T11:11:49Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"FFjTcvvCG05xM3FLIEhnU2ijSUIC7/m4nxcQqRgkEmhZyjvyVkN1VNezNiMmmBmIbYqrQyDq9lIOBqyebettBA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-09T01:10:21.164839Z"},"content_sha256":"d0665d1d82568530c423d19bedd6355a8bd79c77397893e11819d1d46b05a622","schema_version":"1.0","event_id":"sha256:d0665d1d82568530c423d19bedd6355a8bd79c77397893e11819d1d46b05a622"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2025:DYLJH2GOR5NZDBU7NDRPVKXCQ7","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Depth to magnetic source estimation using TDX contour","license":"http://creativecommons.org/licenses/by/4.0/","headline":"","cross_cats":[],"primary_cat":"physics.geo-ph","authors_text":"Hammed Oyekan","submitted_at":"2025-05-28T18:47:56Z","abstract_excerpt":"Accurate depth estimation of magnetic sources plays a crucial role in various geophysical applications, including mineral exploration, resource assessments, regional hydrocarbon exploration, and geological mapping. Thus, this abstract presents a fast and simple method of estimating the depth of a magnetic body using the TDX derivative of the total magnetic field. TDX is a first-order derivative of the magnetic field that, in addition to edge detection, is less affected by noise, allowing for better depth resolution. The reduced sensitivity to noise enables a clearer estimation of depth and enh"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2505.22780","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/2505.22780/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":"2026-07-05T11:11:49Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"W8pEB9NNS+9CHtHOmZ4Ujmu/aSDgEU+cDkrJkzZoICquAIu5u1Xsa6VvRqYD07Yo9kPAtcQ75eY4bkUrGbQXAA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-09T01:10:21.165335Z"},"content_sha256":"c16e52e59e7c79924d6c8e4cf65e17ca6482b5f4a81902b827641857fcd18e9d","schema_version":"1.0","event_id":"sha256:c16e52e59e7c79924d6c8e4cf65e17ca6482b5f4a81902b827641857fcd18e9d"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/DYLJH2GOR5NZDBU7NDRPVKXCQ7/bundle.json","state_url":"https://pith.science/pith/DYLJH2GOR5NZDBU7NDRPVKXCQ7/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/DYLJH2GOR5NZDBU7NDRPVKXCQ7/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":"2026-08-09T01:10:21Z","links":{"resolver":"https://pith.science/pith/DYLJH2GOR5NZDBU7NDRPVKXCQ7","bundle":"https://pith.science/pith/DYLJH2GOR5NZDBU7NDRPVKXCQ7/bundle.json","state":"https://pith.science/pith/DYLJH2GOR5NZDBU7NDRPVKXCQ7/state.json","well_known_bundle":"https://pith.science/.well-known/pith/DYLJH2GOR5NZDBU7NDRPVKXCQ7/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2025:DYLJH2GOR5NZDBU7NDRPVKXCQ7","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":"2165913f05c56483fdbb767bb6022eb67bf9e38d52ee0ed08e5a3d35fd951966","cross_cats_sorted":[],"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"physics.geo-ph","submitted_at":"2025-05-28T18:47:56Z","title_canon_sha256":"abb0c11bc7613c4154bfbfd1cdce6cd542ce11a7d38e6c6de06906091ab723a0"},"schema_version":"1.0","source":{"id":"2505.22780","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2505.22780","created_at":"2026-07-05T11:11:49Z"},{"alias_kind":"arxiv_version","alias_value":"2505.22780v1","created_at":"2026-07-05T11:11:49Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2505.22780","created_at":"2026-07-05T11:11:49Z"},{"alias_kind":"pith_short_12","alias_value":"DYLJH2GOR5NZ","created_at":"2026-07-05T11:11:49Z"},{"alias_kind":"pith_short_16","alias_value":"DYLJH2GOR5NZDBU7","created_at":"2026-07-05T11:11:49Z"},{"alias_kind":"pith_short_8","alias_value":"DYLJH2GO","created_at":"2026-07-05T11:11:49Z"}],"graph_snapshots":[{"event_id":"sha256:c16e52e59e7c79924d6c8e4cf65e17ca6482b5f4a81902b827641857fcd18e9d","target":"graph","created_at":"2026-07-05T11:11:49Z","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/2505.22780/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"Accurate depth estimation of magnetic sources plays a crucial role in various geophysical applications, including mineral exploration, resource assessments, regional hydrocarbon exploration, and geological mapping. Thus, this abstract presents a fast and simple method of estimating the depth of a magnetic body using the TDX derivative of the total magnetic field. TDX is a first-order derivative of the magnetic field that, in addition to edge detection, is less affected by noise, allowing for better depth resolution. The reduced sensitivity to noise enables a clearer estimation of depth and enh","authors_text":"Hammed Oyekan","cross_cats":[],"headline":"","license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"physics.geo-ph","submitted_at":"2025-05-28T18:47:56Z","title":"Depth to magnetic source estimation using TDX contour"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2505.22780","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:d0665d1d82568530c423d19bedd6355a8bd79c77397893e11819d1d46b05a622","target":"record","created_at":"2026-07-05T11:11:49Z","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":"2165913f05c56483fdbb767bb6022eb67bf9e38d52ee0ed08e5a3d35fd951966","cross_cats_sorted":[],"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"physics.geo-ph","submitted_at":"2025-05-28T18:47:56Z","title_canon_sha256":"abb0c11bc7613c4154bfbfd1cdce6cd542ce11a7d38e6c6de06906091ab723a0"},"schema_version":"1.0","source":{"id":"2505.22780","kind":"arxiv","version":1}},"canonical_sha256":"1e1693e8ce8f5b91869f68e2faaae287e68b01cc1a3c0908e2407bb6c43703d9","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"1e1693e8ce8f5b91869f68e2faaae287e68b01cc1a3c0908e2407bb6c43703d9","first_computed_at":"2026-07-05T11:11:49.853217Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T11:11:49.853217Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"O4kkaU3/n5CMGXSLqFhpd+c4xpe++K/IO6mXpVxk9f5j0XLunB5BYHFEc+i+vUTMuxxe2Td4IkgpRbgaQFIVDQ==","signature_status":"signed_v1","signed_at":"2026-07-05T11:11:49.853692Z","signed_message":"canonical_sha256_bytes"},"source_id":"2505.22780","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:d0665d1d82568530c423d19bedd6355a8bd79c77397893e11819d1d46b05a622","sha256:c16e52e59e7c79924d6c8e4cf65e17ca6482b5f4a81902b827641857fcd18e9d"],"state_sha256":"ce0fc9add7bfbe8ab217f03cdd27603476ab17dedca270c0070f7e29bd1b5c67"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"ppYgm/FBWUZfuzcsxWqv3FaU6OVppDwfWDmGcQ147LNncCn7//9L7zvIqm3mjRK9OrwNE64TZ7v/J+shUxUcCg==","signed_message":"bundle_sha256_bytes","signed_at":"2026-08-09T01:10:21.169233Z","bundle_sha256":"87a7f6d8fe4606d1182148a3cc252eeea78da50aeba800607f64acf869f11456"}}