Pith Number

pith:6NUKOT7S

pith:2014:6NUKOT7SLRWNAEPATTEE7AC4CB

not attested not anchored not stored refs pending

Local changes in the total electron content immediately before the 2009 Abruzzo earthquake

Luigi Ciraolo, Marcello DeLauretis, Massimo Vellante, Michael Pezzopane, Petko Nenovski, Umberto Villante

arxiv:1405.4622 v1 · 2014-05-19 · physics.geo-ph · physics.space-ph

Open paper page JSON Open Graph Bundle Merged state Verified badge What is a Pith Number?

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{6NUKOT7SLRWNAEPATTEE7AC4CB}

Prints a linked badge after your title and injects PDF metadata. Compiles on arXiv. Learn more · Embed verified badge

Record completeness

1 Bitcoin timestamp

2 Internet Archive

3 Author claim open · sign in to claim

4 Citations open

5 Replications open

✓ Portable graph bundle live · download bundle · merged state

The bundle contains the canonical record plus signed events. A mirror can host it anywhere and recompute the same current state with the deterministic merge algorithm.

Receipt and verification

First computed	2026-05-18T01:43:11.144927Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

f368a74ff25c6cd011e09cc84f805c1052cd33723a8aefffb77995701917bc24

Aliases

arxiv: 1405.4622 · arxiv_version: 1405.4622v1 · doi: 10.48550/arxiv.1405.4622 · pith_short_12: 6NUKOT7SLRWN · pith_short_16: 6NUKOT7SLRWNAEPA · pith_short_8: 6NUKOT7S

Agent API

Resolver JSON Graph JSON Events JSON Schema Signing key

Verify this Pith Number yourself

curl -sH 'Accept: application/ld+json' https://pith.science/pith/6NUKOT7SLRWNAEPATTEE7AC4CB \
  | jq -c '.canonical_record' \
  | python3 -c "import sys,json,hashlib; b=json.dumps(json.loads(sys.stdin.read()), sort_keys=True, separators=(',',':'), ensure_ascii=False).encode(); print(hashlib.sha256(b).hexdigest())"
# expect: f368a74ff25c6cd011e09cc84f805c1052cd33723a8aefffb77995701917bc24

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "c1be53efbd190665400bfdaae5a6688dd420568834dc7865d523563fa02885b5",
    "cross_cats_sorted": [
      "physics.space-ph"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "physics.geo-ph",
    "submitted_at": "2014-05-19T07:16:30Z",
    "title_canon_sha256": "d7e917f43ac72ad69d2ce7bb798dd031ee54de2ba19fef369415b741cb55649c"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1405.4622",
    "kind": "arxiv",
    "version": 1
  }
}