Pith Number

pith:5OAYBMQK

pith:2014:5OAYBMQKDTYHWXI2X5B6UBVH3N

not attested not anchored not stored refs pending

Evaluation of an ensemble-based incremental variational data assimilation

Cordelia Robinson, Dominique Heitz, Etienne M\'emin, Yin Yang

arxiv:1401.4053 v1 · 2014-01-16 · math-ph · math.MP

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{5OAYBMQKDTYHWXI2X5B6UBVH3N}

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	2026-05-18T03:01:57.319712Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

eb8180b20a1cf07b5d1abf43ea06a7db454c8744e142a11c08fa2d34010e05dd

Aliases

arxiv: 1401.4053 · arxiv_version: 1401.4053v1 · doi: 10.48550/arxiv.1401.4053 · pith_short_12: 5OAYBMQKDTYH · pith_short_16: 5OAYBMQKDTYHWXI2 · pith_short_8: 5OAYBMQK

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/5OAYBMQKDTYHWXI2X5B6UBVH3N \
  | 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: eb8180b20a1cf07b5d1abf43ea06a7db454c8744e142a11c08fa2d34010e05dd

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "8ceaa58aa4b7e30505638ce82506d71897da348f10bd1109e6140cb862989182",
    "cross_cats_sorted": [
      "math.MP"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math-ph",
    "submitted_at": "2014-01-16T14:58:40Z",
    "title_canon_sha256": "104320656fbcca830e69fd04a8832ae3addd0fef8796dee118d9555ca7a00868"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1401.4053",
    "kind": "arxiv",
    "version": 1
  }
}