Pith Number

pith:5YBEM6PE

pith:2009:5YBEM6PEAQ2LZRC5V56B2HCXBX

not attested not anchored not stored refs pending

Collapsing behaviour of a singular diffusion equation

Kin Ming Hui

arxiv:0910.5045 v2 · 2009-10-27 · 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{5YBEM6PEAQ2LZRC5V56B2HCXBX}

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	2026-05-18T04:21:10.988870Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

ee024679e40434bcc45daf7c1d1c570dc6e858762430bbd6c2e50296ec643950

Aliases

arxiv: 0910.5045 · arxiv_version: 0910.5045v2 · doi: 10.48550/arxiv.0910.5045 · pith_short_12: 5YBEM6PEAQ2L · pith_short_16: 5YBEM6PEAQ2LZRC5 · pith_short_8: 5YBEM6PE

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/5YBEM6PEAQ2LZRC5V56B2HCXBX \
  | 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: ee024679e40434bcc45daf7c1d1c570dc6e858762430bbd6c2e50296ec643950

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "ee97f5bbaf9cc8720ff07719d709b503d8db0a27279daf50e2b52273fc9754d6",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.AP",
    "submitted_at": "2009-10-27T05:50:54Z",
    "title_canon_sha256": "1e9d1d4741d9764e449c6656bd3ad8eb5cc6225469bd1fbe2f2f85fd1ef5c501"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0910.5045",
    "kind": "arxiv",
    "version": 2
  }
}