Pith Number

pith:ETZGXY5T

pith:2018:ETZGXY5TFMTKAJ4YQZP2QWNX3Q

not attested not anchored not stored refs pending

A shadowing-based inflation scheme for ensemble data assimilation

Lewis Mitchell, Thomas Bellsky

arxiv:1805.07011 v2 · 2018-05-18 · physics.data-an · nlin.CD · physics.ao-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{ETZGXY5TFMTKAJ4YQZP2QWNX3Q}

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	2026-05-18T00:03:16.512393Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

24f26be3b32b26a02798865fa859b7dc25d3279e71dce948e7804086e456d316

Aliases

arxiv: 1805.07011 · arxiv_version: 1805.07011v2 · doi: 10.48550/arxiv.1805.07011 · pith_short_12: ETZGXY5TFMTK · pith_short_16: ETZGXY5TFMTKAJ4Y · pith_short_8: ETZGXY5T

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/ETZGXY5TFMTKAJ4YQZP2QWNX3Q \
  | 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: 24f26be3b32b26a02798865fa859b7dc25d3279e71dce948e7804086e456d316

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "28fa5b7ca07b4649410628c640c2caa95f37f7c43ac2c2e106ae15f96b3be1f6",
    "cross_cats_sorted": [
      "nlin.CD",
      "physics.ao-ph"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "physics.data-an",
    "submitted_at": "2018-05-18T01:10:56Z",
    "title_canon_sha256": "3f5fbb3963cfc8e53a3e95467347fb43857eacc4394bdebe41ac74e15f6fdcae"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1805.07011",
    "kind": "arxiv",
    "version": 2
  }
}