Pith Number

pith:FF3AFWFS

pith:2018:FF3AFWFSDQL5FGYLJWT54U4RVR

not attested not anchored not stored refs pending

Conservative discretizations and parameter-robust preconditioners for Biot and multiple-network flux-based poroelastic models

Fadi Philo, Johannes Kraus, Maria Lymbery, Qinggou Hong

arxiv:1806.00353 v2 · 2018-05-30 · 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{FF3AFWFSDQL5FGYLJWT54U4RVR}

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	2026-05-18T00:13:44.062732Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

297602d8b21c17d29b0b4da7de5391ac4d830a40840958127af1178064f74377

Aliases

arxiv: 1806.00353 · arxiv_version: 1806.00353v2 · doi: 10.48550/arxiv.1806.00353 · pith_short_12: FF3AFWFSDQL5 · pith_short_16: FF3AFWFSDQL5FGYL · pith_short_8: FF3AFWFS

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/FF3AFWFSDQL5FGYLJWT54U4RVR \
  | 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: 297602d8b21c17d29b0b4da7de5391ac4d830a40840958127af1178064f74377

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "58510955965b638a3986377419870a5dede160506d4c3a78a8114c5b2c8c78c8",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.NA",
    "submitted_at": "2018-05-30T21:53:41Z",
    "title_canon_sha256": "d5b7427ce543a6bd2b438649451f1ec0ed3e3b01163276f573c00794819145b7"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1806.00353",
    "kind": "arxiv",
    "version": 2
  }
}