Pith Number

pith:QMUKD6UP

pith:2019:QMUKD6UPOTGCPJXU233T2WISPI

not attested not anchored not stored refs pending

Nonlinear diffusion equations with degenerate fast-decay mobility by coordinate transformation

N. Ansini, S. Fagioli

arxiv:1902.02764 v1 · 2019-02-07 · 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{QMUKD6UPOTGCPJXU233T2WISPI}

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	2026-05-17T23:54:32.252872Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

8328a1fa8f74cc27a6f4d6f73d59127a0c05ecf042fc59826b73346e9d308c93

Aliases

arxiv: 1902.02764 · arxiv_version: 1902.02764v1 · doi: 10.48550/arxiv.1902.02764 · pith_short_12: QMUKD6UPOTGC · pith_short_16: QMUKD6UPOTGCPJXU · pith_short_8: QMUKD6UP

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/QMUKD6UPOTGCPJXU233T2WISPI \
  | 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: 8328a1fa8f74cc27a6f4d6f73d59127a0c05ecf042fc59826b73346e9d308c93

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "a2858c183bffdd8edc4d4352906bcbd542d6e7b1ce606378a2328751d3f2a007",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.AP",
    "submitted_at": "2019-02-07T18:42:46Z",
    "title_canon_sha256": "c54f886d2b390fd20f7b02b77a55defa10031c310e7b91dca398dfd81e786749"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1902.02764",
    "kind": "arxiv",
    "version": 1
  }
}