Pith Number

pith:T2VVVCUX

pith:2016:T2VVVCUXOMEVW4C3JHGHJWPNWP

not attested not anchored not stored refs pending

From the free boundary condition for Hele-Shaw to a fractional parabolic equation

H\'ector A. Chang-Lara, Nestor Guillen

arxiv:1605.07591 v1 · 2016-05-24 · 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{T2VVVCUXOMEVW4C3JHGHJWPNWP}

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	2026-05-18T01:13:45.664638Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

9eab5a8a9773095b705b49cc74d9edb3d0648d72743ac6c9cebe3113f8f83863

Aliases

arxiv: 1605.07591 · arxiv_version: 1605.07591v1 · doi: 10.48550/arxiv.1605.07591 · pith_short_12: T2VVVCUXOMEV · pith_short_16: T2VVVCUXOMEVW4C3 · pith_short_8: T2VVVCUX

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/T2VVVCUXOMEVW4C3JHGHJWPNWP \
  | 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: 9eab5a8a9773095b705b49cc74d9edb3d0648d72743ac6c9cebe3113f8f83863

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "c9b6a10dd74d8920748d76fd1568bba7c31cc312eea948f47f45860cdbada8fd",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.AP",
    "submitted_at": "2016-05-24T19:19:29Z",
    "title_canon_sha256": "716c49aa78181723255c8f4f0edcaf2355531ed9b15e0c5251c352cdee4777c6"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1605.07591",
    "kind": "arxiv",
    "version": 1
  }
}