Pith Number

pith:UCSOV2F7

pith:2014:UCSOV2F7V74AC2CZUE5QISIO6K

not attested not anchored not stored refs pending

On a new transformation for generalised porous medium equations: from weak solutions to classical

Anna Zhigun

arxiv:1410.6622 v2 · 2014-10-24 · 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{UCSOV2F7V74AC2CZUE5QISIO6K}

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	2026-05-18T01:27:36.696348Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

a0a4eae8bfaff8016859a13b04490ef29b68c04eca92009df3d984ce37d8455e

Aliases

arxiv: 1410.6622 · arxiv_version: 1410.6622v2 · doi: 10.48550/arxiv.1410.6622 · pith_short_12: UCSOV2F7V74A · pith_short_16: UCSOV2F7V74AC2CZ · pith_short_8: UCSOV2F7

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/UCSOV2F7V74AC2CZUE5QISIO6K \
  | 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: a0a4eae8bfaff8016859a13b04490ef29b68c04eca92009df3d984ce37d8455e

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "afcd60c01a73ff86eed1e04be244dea0d4b55a29f7b0533ca498fa9de1e93441",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.AP",
    "submitted_at": "2014-10-24T09:02:25Z",
    "title_canon_sha256": "3ba9d32e528b00fdcc36abd5d2dc8fc675808cc8a3254729c7f0d18fc1971e60"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1410.6622",
    "kind": "arxiv",
    "version": 2
  }
}