Pith Number

pith:M4KD26ZB

pith:2015:M4KD26ZBZQ7NLLDOKLSJJSBKFQ

not attested not anchored not stored refs pending

A Computational Study of a Data Assimilation Algorithm for the Two-dimensional Navier--Stokes Equations

Edriss S. Titi, Eric Olson, Masakazu Gesho

arxiv:1505.01234 v1 · 2015-05-06 · math.DS · math.NA

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{M4KD26ZBZQ7NLLDOKLSJJSBKFQ}

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	2026-05-18T01:15:52.933967Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

67143d7b21cc3ed5ac6e52e494c82a2c19f5f8c66e3d4a09a0512bdad120d010

Aliases

arxiv: 1505.01234 · arxiv_version: 1505.01234v1 · doi: 10.48550/arxiv.1505.01234 · pith_short_12: M4KD26ZBZQ7N · pith_short_16: M4KD26ZBZQ7NLLDO · pith_short_8: M4KD26ZB

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/M4KD26ZBZQ7NLLDOKLSJJSBKFQ \
  | 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: 67143d7b21cc3ed5ac6e52e494c82a2c19f5f8c66e3d4a09a0512bdad120d010

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "d4451078fa92aa1c549dfdc19113739a4d8f7e9ae2efd7334d88fb586a662762",
    "cross_cats_sorted": [
      "math.NA"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.DS",
    "submitted_at": "2015-05-06T01:25:45Z",
    "title_canon_sha256": "4d1e2c9a8d71522b4bdd82ca43d3dbbd198c7e483621f6e542f7445c6b2275fe"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1505.01234",
    "kind": "arxiv",
    "version": 1
  }
}