{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2006:7KLVZEBU6FCJCFZAKJ5DEX5SZV","short_pith_number":"pith:7KLVZEBU","canonical_record":{"source":{"id":"cond-mat/0701008","kind":"arxiv","version":1},"metadata":{"license":"","primary_cat":"cond-mat.mtrl-sci","submitted_at":"2006-12-30T11:10:06Z","cross_cats_sorted":[],"title_canon_sha256":"3a8a11ebd3aa311d3ba7714a3e50ea33d3e060855cb8e8fd84ba427f3e32743e","abstract_canon_sha256":"072ab4bfb9b8129787347c1844c9b8b738c60f36b78184a29d5361e3e5271dff"},"schema_version":"1.0"},"canonical_sha256":"fa975c9034f144911720527a325fb2cd7c0a03429f6a6ea79876f9f9e5f2b47e","source":{"kind":"arxiv","id":"cond-mat/0701008","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"cond-mat/0701008","created_at":"2026-05-17T23:40:44Z"},{"alias_kind":"arxiv_version","alias_value":"cond-mat/0701008v1","created_at":"2026-05-17T23:40:44Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.cond-mat/0701008","created_at":"2026-05-17T23:40:44Z"},{"alias_kind":"pith_short_12","alias_value":"7KLVZEBU6FCJ","created_at":"2026-05-18T12:25:53Z"},{"alias_kind":"pith_short_16","alias_value":"7KLVZEBU6FCJCFZA","created_at":"2026-05-18T12:25:53Z"},{"alias_kind":"pith_short_8","alias_value":"7KLVZEBU","created_at":"2026-05-18T12:25:53Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2006:7KLVZEBU6FCJCFZAKJ5DEX5SZV","target":"record","payload":{"canonical_record":{"source":{"id":"cond-mat/0701008","kind":"arxiv","version":1},"metadata":{"license":"","primary_cat":"cond-mat.mtrl-sci","submitted_at":"2006-12-30T11:10:06Z","cross_cats_sorted":[],"title_canon_sha256":"3a8a11ebd3aa311d3ba7714a3e50ea33d3e060855cb8e8fd84ba427f3e32743e","abstract_canon_sha256":"072ab4bfb9b8129787347c1844c9b8b738c60f36b78184a29d5361e3e5271dff"},"schema_version":"1.0"},"canonical_sha256":"fa975c9034f144911720527a325fb2cd7c0a03429f6a6ea79876f9f9e5f2b47e","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-17T23:40:44.022438Z","signature_b64":"2WvxVchKsFxW2uOvCoTwUdnud34A/xRo4qeUsr72RmLwC0yBTrg4u6OlHD2/eC+WoNYAEjWaazKQLUCyZO7iDQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"fa975c9034f144911720527a325fb2cd7c0a03429f6a6ea79876f9f9e5f2b47e","last_reissued_at":"2026-05-17T23:40:44.021737Z","signature_status":"signed_v1","first_computed_at":"2026-05-17T23:40:44.021737Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"cond-mat/0701008","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":"2026-05-17T23:40:44Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"+/lZHPmJ8U7dDqOAsx0Yylwg8uqWFFpYe9YfubnNpIrw/vJZu8hT1mSvl6vYrnTfj/oMRUfzNp9dGy8sT/uyDg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-07T04:00:39.436748Z"},"content_sha256":"3a342aff2f56bec54e96774295946326226e769d57caeb45d49e291de41a5023","schema_version":"1.0","event_id":"sha256:3a342aff2f56bec54e96774295946326226e769d57caeb45d49e291de41a5023"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2006:7KLVZEBU6FCJCFZAKJ5DEX5SZV","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Self-Organized Formation of Fractal and Regular Pores in Semiconductors","license":"","headline":"","cross_cats":[],"primary_cat":"cond-mat.mtrl-sci","authors_text":"Helmut F\\\"oll (University Kiel), Jens Christian Claussen, J\\\"urgen Carstensen, Marc Christophersen, Sergiu Langa","submitted_at":"2006-12-30T11:10:06Z","abstract_excerpt":"Electrochemical etching of semiconductors, beside technical applications, provides an interesting experimental setup for self-organized structure formation capable of regular, diameter-modulated, and branching pores. The underlying dynamical processes governing current transfer and structure formation are described by the Current-Burst-Model: all dissolution processes are assumed to occur inhomogeneously in time and space as a Current Burst (CB); properties and interactions between CB's are described by a number of material- and chemistry- dependent ingredients, like passivation and aging of s"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"cond-mat/0701008","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":"2026-05-17T23:40:44Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"5HyrKE8bXJtv6BcA2oRrr5ScZF7hPJR6TWicqihrs33T3IfUZ/pQi3rxch0hysbJ6kC5hsUABhbwJbSW+hrUDg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-07T04:00:39.437348Z"},"content_sha256":"21fa2fa99c6dd0518b429182cd6cc5407144dc646badf54e58047dd0923f217b","schema_version":"1.0","event_id":"sha256:21fa2fa99c6dd0518b429182cd6cc5407144dc646badf54e58047dd0923f217b"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/7KLVZEBU6FCJCFZAKJ5DEX5SZV/bundle.json","state_url":"https://pith.science/pith/7KLVZEBU6FCJCFZAKJ5DEX5SZV/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/7KLVZEBU6FCJCFZAKJ5DEX5SZV/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":"2026-06-07T04:00:39Z","links":{"resolver":"https://pith.science/pith/7KLVZEBU6FCJCFZAKJ5DEX5SZV","bundle":"https://pith.science/pith/7KLVZEBU6FCJCFZAKJ5DEX5SZV/bundle.json","state":"https://pith.science/pith/7KLVZEBU6FCJCFZAKJ5DEX5SZV/state.json","well_known_bundle":"https://pith.science/.well-known/pith/7KLVZEBU6FCJCFZAKJ5DEX5SZV/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2006:7KLVZEBU6FCJCFZAKJ5DEX5SZV","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":"072ab4bfb9b8129787347c1844c9b8b738c60f36b78184a29d5361e3e5271dff","cross_cats_sorted":[],"license":"","primary_cat":"cond-mat.mtrl-sci","submitted_at":"2006-12-30T11:10:06Z","title_canon_sha256":"3a8a11ebd3aa311d3ba7714a3e50ea33d3e060855cb8e8fd84ba427f3e32743e"},"schema_version":"1.0","source":{"id":"cond-mat/0701008","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"cond-mat/0701008","created_at":"2026-05-17T23:40:44Z"},{"alias_kind":"arxiv_version","alias_value":"cond-mat/0701008v1","created_at":"2026-05-17T23:40:44Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.cond-mat/0701008","created_at":"2026-05-17T23:40:44Z"},{"alias_kind":"pith_short_12","alias_value":"7KLVZEBU6FCJ","created_at":"2026-05-18T12:25:53Z"},{"alias_kind":"pith_short_16","alias_value":"7KLVZEBU6FCJCFZA","created_at":"2026-05-18T12:25:53Z"},{"alias_kind":"pith_short_8","alias_value":"7KLVZEBU","created_at":"2026-05-18T12:25:53Z"}],"graph_snapshots":[{"event_id":"sha256:21fa2fa99c6dd0518b429182cd6cc5407144dc646badf54e58047dd0923f217b","target":"graph","created_at":"2026-05-17T23:40:44Z","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":"Electrochemical etching of semiconductors, beside technical applications, provides an interesting experimental setup for self-organized structure formation capable of regular, diameter-modulated, and branching pores. The underlying dynamical processes governing current transfer and structure formation are described by the Current-Burst-Model: all dissolution processes are assumed to occur inhomogeneously in time and space as a Current Burst (CB); properties and interactions between CB's are described by a number of material- and chemistry- dependent ingredients, like passivation and aging of s","authors_text":"Helmut F\\\"oll (University Kiel), Jens Christian Claussen, J\\\"urgen Carstensen, Marc Christophersen, Sergiu Langa","cross_cats":[],"headline":"","license":"","primary_cat":"cond-mat.mtrl-sci","submitted_at":"2006-12-30T11:10:06Z","title":"Self-Organized Formation of Fractal and Regular Pores in Semiconductors"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"cond-mat/0701008","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":"sha256:3a342aff2f56bec54e96774295946326226e769d57caeb45d49e291de41a5023","target":"record","created_at":"2026-05-17T23:40:44Z","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":"072ab4bfb9b8129787347c1844c9b8b738c60f36b78184a29d5361e3e5271dff","cross_cats_sorted":[],"license":"","primary_cat":"cond-mat.mtrl-sci","submitted_at":"2006-12-30T11:10:06Z","title_canon_sha256":"3a8a11ebd3aa311d3ba7714a3e50ea33d3e060855cb8e8fd84ba427f3e32743e"},"schema_version":"1.0","source":{"id":"cond-mat/0701008","kind":"arxiv","version":1}},"canonical_sha256":"fa975c9034f144911720527a325fb2cd7c0a03429f6a6ea79876f9f9e5f2b47e","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"fa975c9034f144911720527a325fb2cd7c0a03429f6a6ea79876f9f9e5f2b47e","first_computed_at":"2026-05-17T23:40:44.021737Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-17T23:40:44.021737Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"2WvxVchKsFxW2uOvCoTwUdnud34A/xRo4qeUsr72RmLwC0yBTrg4u6OlHD2/eC+WoNYAEjWaazKQLUCyZO7iDQ==","signature_status":"signed_v1","signed_at":"2026-05-17T23:40:44.022438Z","signed_message":"canonical_sha256_bytes"},"source_id":"cond-mat/0701008","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:3a342aff2f56bec54e96774295946326226e769d57caeb45d49e291de41a5023","sha256:21fa2fa99c6dd0518b429182cd6cc5407144dc646badf54e58047dd0923f217b"],"state_sha256":"e3a4ae79a116039918198b34ee278cbbd6ed1c8b0114b585eae4b8215a9e02f3"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"FNkQfpYwXJpSVXSVbZn0LdbV4MD1j/aRJSD4WEy33qmsP35sweyrM6ncF7NUwYxwz57pivIlMKTNXoHKj5UpCQ==","signed_message":"bundle_sha256_bytes","signed_at":"2026-06-07T04:00:39.440369Z","bundle_sha256":"70180cf5c3a571e0216bdcf4bb4aa97c91bf28085f1075f3f9216a81003dee65"}}