Pith Number

pith:6OCXVRPK

pith:2008:6OCXVRPKCULNQ4FYODORO2VALM

not attested not anchored not stored refs pending

The Back and Forth Nudging algorithm for data assimilation problems: theoretical results on transport equations

Didier Auroux (INRIA Rh\^one-Alpes / LJK Laboratoire Jean Kuntzmann, Ma\"elle Nodet (INRIA Rh\^one-Alpes / LJK Laboratoire Jean Kuntzmann), MIP)

arxiv:0809.4838 v1 · 2008-09-28 · math.OC · math.AP

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Add to your LaTeX paper

\usepackage{pith}
\pithnumber{6OCXVRPKCULNQ4FYODORO2VALM}

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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	2026-05-18T04:34:38.218764Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

f3857ac5ea1516d870b870dd176aa05b179e0ed1ece4dd62b3ea1220836ad7cb

Aliases

arxiv: 0809.4838 · arxiv_version: 0809.4838v1 · doi: 10.48550/arxiv.0809.4838 · pith_short_12: 6OCXVRPKCULN · pith_short_16: 6OCXVRPKCULNQ4FY · pith_short_8: 6OCXVRPK

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/6OCXVRPKCULNQ4FYODORO2VALM \
  | 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: f3857ac5ea1516d870b870dd176aa05b179e0ed1ece4dd62b3ea1220836ad7cb

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "a9ea364025a261f685fc9432b43bc1952e6b437a913a69bbfe443ca4829c9756",
    "cross_cats_sorted": [
      "math.AP"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.OC",
    "submitted_at": "2008-09-28T11:26:51Z",
    "title_canon_sha256": "efdb87f90d75e6f30a0367e71800eeffcfced408dce6b7a3b620470f176602b9"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0809.4838",
    "kind": "arxiv",
    "version": 1
  }
}