Pith Number

pith:CJFMUSXD

pith:2017:CJFMUSXDJYSDZHUCWEKPD4RGPJ

not attested not anchored not stored refs pending

Sequential data assimilation with multiple nonlinear models and applications to subsurface flow

Akil Narayan, Lun Yang, Peng Wang

arxiv:1707.06394 v1 · 2017-07-20 · 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{CJFMUSXDJYSDZHUCWEKPD4RGPJ}

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	2026-05-18T00:39:53.896998Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

124aca4ae34e243c9e82b114f1f2267a7d73b61c620988a4ef74affa8b5f9857

Aliases

arxiv: 1707.06394 · arxiv_version: 1707.06394v1 · doi: 10.48550/arxiv.1707.06394 · pith_short_12: CJFMUSXDJYSD · pith_short_16: CJFMUSXDJYSDZHUC · pith_short_8: CJFMUSXD

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/CJFMUSXDJYSDZHUCWEKPD4RGPJ \
  | 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: 124aca4ae34e243c9e82b114f1f2267a7d73b61c620988a4ef74affa8b5f9857

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "65db036f03f82bd41e453749d225d2b4e53a357736e7b275c1af23519692b826",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.NA",
    "submitted_at": "2017-07-20T06:59:58Z",
    "title_canon_sha256": "106c938b34aead3c3a38099188e27db08ef387f015e1a416b63265a69bb5d0c8"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1707.06394",
    "kind": "arxiv",
    "version": 1
  }
}