Pith Number

pith:FU3V4C2Q

pith:2019:FU3V4C2QTYJHP26C4NROP4Z5X7

not attested not anchored not stored refs pending

Evolution of Interfaces for the Nonlinear Double Degenerate Parabolic Equation of Turbulent Filtration with Absorption. II. Fast Diffusion Case

Adam Prinkey, Montie Avery, Ugur G. Abdulla

arxiv:1903.08155 v1 · 2019-03-19 · math.AP

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{FU3V4C2QTYJHP26C4NROP4Z5X7}

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	2026-05-17T23:50:50.272699Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

2d375e0b509e1277ebc2e362e7f33dbfe62d275b22b039f081b7976e0a5ded1e

Aliases

arxiv: 1903.08155 · arxiv_version: 1903.08155v1 · doi: 10.48550/arxiv.1903.08155 · pith_short_12: FU3V4C2QTYJH · pith_short_16: FU3V4C2QTYJHP26C · pith_short_8: FU3V4C2Q

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/FU3V4C2QTYJHP26C4NROP4Z5X7 \
  | 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: 2d375e0b509e1277ebc2e362e7f33dbfe62d275b22b039f081b7976e0a5ded1e

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "a47ea7b5b83706fd26c26aacd80dfe1d7002eb9528b3d6d8ff5f1b830ac0fc8b",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.AP",
    "submitted_at": "2019-03-19T06:21:01Z",
    "title_canon_sha256": "3c37842ca0e332b9d8f9c130e73a74a57529e2c66192bb539938c6490c253e5e"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1903.08155",
    "kind": "arxiv",
    "version": 1
  }
}