Pith Number

pith:YDOFUGBA

pith:2019:YDOFUGBABGHGP2EBMLPFTHNYXB

not attested not anchored not stored refs pending

A spectral method for solving heat and moisture transfer through consolidated porous media

Denys Dutykh (LAMA, Nathan Mendes (PUCPR), PUCPR), Suelen Gasparin (LAMA, USMB)

arxiv:1902.07775 v1 · 2019-02-19 · cs.CE · cs.NA · math.AP · math.NA · physics.flu-dyn

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{YDOFUGBABGHGP2EBMLPFTHNYXB}

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	2026-06-04T20:13:55.034174Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

c0dc5a1820098e67e88162de599db8b858d0d4fb4a07b0156909ebd82afc5096

Aliases

arxiv: 1902.07775 · arxiv_version: 1902.07775v1 · doi: 10.48550/arxiv.1902.07775 · pith_short_12: YDOFUGBABGHG · pith_short_16: YDOFUGBABGHGP2EB · pith_short_8: YDOFUGBA

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/YDOFUGBABGHGP2EBMLPFTHNYXB \
  | 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: c0dc5a1820098e67e88162de599db8b858d0d4fb4a07b0156909ebd82afc5096

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "062c2835ac03ffd8935c1a1c4dc5a07b136fb4cdb1ec39e4970750f16502c230",
    "cross_cats_sorted": [
      "cs.NA",
      "math.AP",
      "math.NA",
      "physics.flu-dyn"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.CE",
    "submitted_at": "2019-02-19T14:48:51Z",
    "title_canon_sha256": "0b0f1b90a534f983b31c10a409223ee0241454a3cb4f276bdc2ffdb0b67df02f"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1902.07775",
    "kind": "arxiv",
    "version": 1
  }
}