Pith Number

pith:QMYQ43ST

pith:2011:QMYQ43STMUAAVBXSOQH2SYPPQL

not attested not anchored not stored refs pending

A Novel EM Gradiometric Surveying System for Geophysical Reconnaissance

Alexey V. Veryaskin, David G. Blair, Francis A. Torres, Ju Li, Timo P. Vaalsta

arxiv:1109.4695 v1 · 2011-09-22 · physics.geo-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{QMYQ43STMUAAVBXSOQH2SYPPQL}

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	2026-05-18T04:12:33.113240Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

83310e6e5365000a86f2740fa961ef82cbf208150b6c94ff07f8da6688417839

Aliases

arxiv: 1109.4695 · arxiv_version: 1109.4695v1 · doi: 10.48550/arxiv.1109.4695 · pith_short_12: QMYQ43STMUAA · pith_short_16: QMYQ43STMUAAVBXS · pith_short_8: QMYQ43ST

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/QMYQ43STMUAAVBXSOQH2SYPPQL \
  | 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: 83310e6e5365000a86f2740fa961ef82cbf208150b6c94ff07f8da6688417839

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "a32199a02c10ed18e0c1e73ca7adb87e1f6a5fe5213e679f257868a940d0bd6e",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "physics.geo-ph",
    "submitted_at": "2011-09-22T03:23:25Z",
    "title_canon_sha256": "e8f4f54f1b9c70429d7fa8f677320e31e08849031464b8023857bdf2c3ed29ea"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1109.4695",
    "kind": "arxiv",
    "version": 1
  }
}