Pith Number

pith:FD4FOV4R

pith:2014:FD4FOV4R7LYE5BKYN4IBZK73V4

not attested not anchored not stored refs pending

Systems of partial differential equations in porous medium

Juha Videman, L\'eonard Monsaingeon, Tuomo Kuusi

arxiv:1412.5414 v2 · 2014-12-17 · 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{FD4FOV4R7LYE5BKYN4IBZK73V4}

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	2026-05-18T02:31:01.866795Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

28f8575791faf04e85586f101cabfbaf1f0068d02fa858993ba15009fe860ca3

Aliases

arxiv: 1412.5414 · arxiv_version: 1412.5414v2 · doi: 10.48550/arxiv.1412.5414 · pith_short_12: FD4FOV4R7LYE · pith_short_16: FD4FOV4R7LYE5BKY · pith_short_8: FD4FOV4R

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/FD4FOV4R7LYE5BKYN4IBZK73V4 \
  | 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: 28f8575791faf04e85586f101cabfbaf1f0068d02fa858993ba15009fe860ca3

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "4264cadbd07ab56995a917208617a38f3f7fe522849f3d15af1a7e822c21088a",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.AP",
    "submitted_at": "2014-12-17T14:54:45Z",
    "title_canon_sha256": "b3106f9ef941a034cfacd6dd5d78780a5c00e7facde7e75c261267ef7c389682"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1412.5414",
    "kind": "arxiv",
    "version": 2
  }
}