Pith Number

pith:Z2QI6FN2

pith:2018:Z2QI6FN2X6OD4CHLZLXT2MZEJC

not attested not anchored not stored refs pending

Coupling geologically consistent geostatistical history matching with parameter uncertainty quantification

Eduardo Barrela, Leonardo Azevedo, Vasily Demyanov

arxiv:1810.06642 v1 · 2018-10-11 · 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{Z2QI6FN2X6OD4CHLZLXT2MZEJC}

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	2026-05-18T00:03:12.117499Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

cea08f15babf9c3e08ebcaef3d332448b316edf5dddc0795fbc1e02883cc7567

Aliases

arxiv: 1810.06642 · arxiv_version: 1810.06642v1 · doi: 10.48550/arxiv.1810.06642 · pith_short_12: Z2QI6FN2X6OD · pith_short_16: Z2QI6FN2X6OD4CHL · pith_short_8: Z2QI6FN2

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/Z2QI6FN2X6OD4CHLZLXT2MZEJC \
  | 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: cea08f15babf9c3e08ebcaef3d332448b316edf5dddc0795fbc1e02883cc7567

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "992771a30aa6274c94eb77e318e0205a1ebc0552c9b996504d7d2c0553161915",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "physics.geo-ph",
    "submitted_at": "2018-10-11T11:15:51Z",
    "title_canon_sha256": "32bfe3bf3e1fa7f7fbf12ef5db80512e040a1062baacdc15fddf09a058a525c0"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1810.06642",
    "kind": "arxiv",
    "version": 1
  }
}