{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2015:VSEAKTEHBOIEACRXXSU3XZ5OFB","short_pith_number":"pith:VSEAKTEH","canonical_record":{"source":{"id":"1507.07268","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.soft","submitted_at":"2015-07-26T23:42:16Z","cross_cats_sorted":[],"title_canon_sha256":"051526a2ee1efdfa716ded29d32b0386d73d8934540331b72b54c7a4ceead158","abstract_canon_sha256":"d6d043722b133a1a08dc6e6fa66b32604ff1965c919c670c95b73e21d71ca445"},"schema_version":"1.0"},"canonical_sha256":"ac88054c870b90400a37bca9bbe7ae28599309aad941b1b84e3589f652da3c1d","source":{"kind":"arxiv","id":"1507.07268","version":2},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1507.07268","created_at":"2026-05-18T01:24:53Z"},{"alias_kind":"arxiv_version","alias_value":"1507.07268v2","created_at":"2026-05-18T01:24:53Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1507.07268","created_at":"2026-05-18T01:24:53Z"},{"alias_kind":"pith_short_12","alias_value":"VSEAKTEHBOIE","created_at":"2026-05-18T12:29:47Z"},{"alias_kind":"pith_short_16","alias_value":"VSEAKTEHBOIEACRX","created_at":"2026-05-18T12:29:47Z"},{"alias_kind":"pith_short_8","alias_value":"VSEAKTEH","created_at":"2026-05-18T12:29:47Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2015:VSEAKTEHBOIEACRXXSU3XZ5OFB","target":"record","payload":{"canonical_record":{"source":{"id":"1507.07268","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.soft","submitted_at":"2015-07-26T23:42:16Z","cross_cats_sorted":[],"title_canon_sha256":"051526a2ee1efdfa716ded29d32b0386d73d8934540331b72b54c7a4ceead158","abstract_canon_sha256":"d6d043722b133a1a08dc6e6fa66b32604ff1965c919c670c95b73e21d71ca445"},"schema_version":"1.0"},"canonical_sha256":"ac88054c870b90400a37bca9bbe7ae28599309aad941b1b84e3589f652da3c1d","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T01:24:53.648350Z","signature_b64":"4h1tUlCydHMHq4lgcwBr2BrA6+xV3BAbDx4jN6Zv58Vv0PZo5efDWtxFJDkVRY1TZXRBy4yitnJjlOSlOZ5VAg==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"ac88054c870b90400a37bca9bbe7ae28599309aad941b1b84e3589f652da3c1d","last_reissued_at":"2026-05-18T01:24:53.647613Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T01:24:53.647613Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1507.07268","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":"2026-05-18T01:24:53Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"HFBoqBHbzEvJvoOBOWjAtZtnL8fUjMZKy+7SzijL27UDkoAg61Y/6ZecnOmhml5s21YbDA7vmzVn8EYhYFPsDA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-26T10:44:52.218428Z"},"content_sha256":"1f3c02520d58b0a54df8578ed36d01c073b9ca79c577b5a3f09d270099c360bc","schema_version":"1.0","event_id":"sha256:1f3c02520d58b0a54df8578ed36d01c073b9ca79c577b5a3f09d270099c360bc"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2015:VSEAKTEHBOIEACRXXSU3XZ5OFB","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Experimental validation of nonextensive scaling law in confined granular media","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"cond-mat.soft","authors_text":"Allbens P.F. Atman, Ga\\\"el Combe, Marta Stasiak, Vincent Richefeu","submitted_at":"2015-07-26T23:42:16Z","abstract_excerpt":"In this letter, we address the relationship between the statistical fluctuations of grain displacements for a full quasistatic plane shear experiment, and the corresponding anomalous diffusion exponent, $\\alpha$. We experimentally validate a particular case of the so-called Tsallis-Bukman scaling law, $\\alpha = 2 / (3 - q)$, where $q$ is obtained by fitting the probability density function (PDF) of the measured fluctuations with a $q$-Gaussian distribution, and the diffusion exponent is measured independently during the experiment. Applying an original technique, we are able to evince a transi"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1507.07268","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":"2026-05-18T01:24:53Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"2GUWmBBqnUSvA3NM3qurbl9A5DIqN9HW2lccPIMzaBVX3DEAkUNi8QhHGHd8d9EXOmSSAmnjIb2yIhZ0cY75DQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-26T10:44:52.218773Z"},"content_sha256":"ab87ff80643e5cbc7e9ecf2ce8737194891500dc5beed8ed80ac20992c9b11ce","schema_version":"1.0","event_id":"sha256:ab87ff80643e5cbc7e9ecf2ce8737194891500dc5beed8ed80ac20992c9b11ce"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/VSEAKTEHBOIEACRXXSU3XZ5OFB/bundle.json","state_url":"https://pith.science/pith/VSEAKTEHBOIEACRXXSU3XZ5OFB/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/VSEAKTEHBOIEACRXXSU3XZ5OFB/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":"2026-06-26T10:44:52Z","links":{"resolver":"https://pith.science/pith/VSEAKTEHBOIEACRXXSU3XZ5OFB","bundle":"https://pith.science/pith/VSEAKTEHBOIEACRXXSU3XZ5OFB/bundle.json","state":"https://pith.science/pith/VSEAKTEHBOIEACRXXSU3XZ5OFB/state.json","well_known_bundle":"https://pith.science/.well-known/pith/VSEAKTEHBOIEACRXXSU3XZ5OFB/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2015:VSEAKTEHBOIEACRXXSU3XZ5OFB","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":"d6d043722b133a1a08dc6e6fa66b32604ff1965c919c670c95b73e21d71ca445","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.soft","submitted_at":"2015-07-26T23:42:16Z","title_canon_sha256":"051526a2ee1efdfa716ded29d32b0386d73d8934540331b72b54c7a4ceead158"},"schema_version":"1.0","source":{"id":"1507.07268","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1507.07268","created_at":"2026-05-18T01:24:53Z"},{"alias_kind":"arxiv_version","alias_value":"1507.07268v2","created_at":"2026-05-18T01:24:53Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1507.07268","created_at":"2026-05-18T01:24:53Z"},{"alias_kind":"pith_short_12","alias_value":"VSEAKTEHBOIE","created_at":"2026-05-18T12:29:47Z"},{"alias_kind":"pith_short_16","alias_value":"VSEAKTEHBOIEACRX","created_at":"2026-05-18T12:29:47Z"},{"alias_kind":"pith_short_8","alias_value":"VSEAKTEH","created_at":"2026-05-18T12:29:47Z"}],"graph_snapshots":[{"event_id":"sha256:ab87ff80643e5cbc7e9ecf2ce8737194891500dc5beed8ed80ac20992c9b11ce","target":"graph","created_at":"2026-05-18T01:24:53Z","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 this letter, we address the relationship between the statistical fluctuations of grain displacements for a full quasistatic plane shear experiment, and the corresponding anomalous diffusion exponent, $\\alpha$. We experimentally validate a particular case of the so-called Tsallis-Bukman scaling law, $\\alpha = 2 / (3 - q)$, where $q$ is obtained by fitting the probability density function (PDF) of the measured fluctuations with a $q$-Gaussian distribution, and the diffusion exponent is measured independently during the experiment. Applying an original technique, we are able to evince a transi","authors_text":"Allbens P.F. Atman, Ga\\\"el Combe, Marta Stasiak, Vincent Richefeu","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.soft","submitted_at":"2015-07-26T23:42:16Z","title":"Experimental validation of nonextensive scaling law in confined granular media"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1507.07268","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":"sha256:1f3c02520d58b0a54df8578ed36d01c073b9ca79c577b5a3f09d270099c360bc","target":"record","created_at":"2026-05-18T01:24:53Z","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":"d6d043722b133a1a08dc6e6fa66b32604ff1965c919c670c95b73e21d71ca445","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.soft","submitted_at":"2015-07-26T23:42:16Z","title_canon_sha256":"051526a2ee1efdfa716ded29d32b0386d73d8934540331b72b54c7a4ceead158"},"schema_version":"1.0","source":{"id":"1507.07268","kind":"arxiv","version":2}},"canonical_sha256":"ac88054c870b90400a37bca9bbe7ae28599309aad941b1b84e3589f652da3c1d","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"ac88054c870b90400a37bca9bbe7ae28599309aad941b1b84e3589f652da3c1d","first_computed_at":"2026-05-18T01:24:53.647613Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T01:24:53.647613Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"4h1tUlCydHMHq4lgcwBr2BrA6+xV3BAbDx4jN6Zv58Vv0PZo5efDWtxFJDkVRY1TZXRBy4yitnJjlOSlOZ5VAg==","signature_status":"signed_v1","signed_at":"2026-05-18T01:24:53.648350Z","signed_message":"canonical_sha256_bytes"},"source_id":"1507.07268","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:1f3c02520d58b0a54df8578ed36d01c073b9ca79c577b5a3f09d270099c360bc","sha256:ab87ff80643e5cbc7e9ecf2ce8737194891500dc5beed8ed80ac20992c9b11ce"],"state_sha256":"c66c94e61af10f1d42a1e7e6a85d13c9a58873f669eb016fdb1dda43169a9d7b"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"YjYJkybEo6z6JSlcD5F/n0nTXVggx7TpDpb7dC5/RRL6WNw1PTEwNPEPRLYAjwzVL3uq8mBiwz9L0X1BQGFGDg==","signed_message":"bundle_sha256_bytes","signed_at":"2026-06-26T10:44:52.220764Z","bundle_sha256":"7b32246a0002786516aa87bec8255dbdd562ee33ea0ee5eb2cc0121775ec6ab8"}}