Pith Number

pith:Q3T7Y3FE

pith:2009:Q3T7Y3FEKZNXCFG4BQBZIJQVUE

not attested not anchored not stored refs pending

On Singularity Formation of a Nonlinear Nonlocal System

Congming Li, Shu Wang, Thomas Y. Hou, Xinwei Yu, Zuoqiang Shi

arxiv:0911.3946 v2 · 2009-11-20 · 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{Q3T7Y3FEKZNXCFG4BQBZIJQVUE}

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	2026-05-18T02:10:45.657741Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

86e7fc6ca4565b7114dc0c03942615a107ba61ba3ea0e7641c8b549b1cabe3fb

Aliases

arxiv: 0911.3946 · arxiv_version: 0911.3946v2 · doi: 10.48550/arxiv.0911.3946 · pith_short_12: Q3T7Y3FEKZNX · pith_short_16: Q3T7Y3FEKZNXCFG4 · pith_short_8: Q3T7Y3FE

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/Q3T7Y3FEKZNXCFG4BQBZIJQVUE \
  | 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: 86e7fc6ca4565b7114dc0c03942615a107ba61ba3ea0e7641c8b549b1cabe3fb

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "613bb43bcc45222662d0b41fc09c0fac8f83040126fb67b3928c143006e4fad0",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.AP",
    "submitted_at": "2009-11-20T03:42:40Z",
    "title_canon_sha256": "2753e2efd79a65c153106058e8196589c3e81cc816fc6e11dea6d1285cc2d050"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0911.3946",
    "kind": "arxiv",
    "version": 2
  }
}