Pith Number

pith:X2HEUD45

pith:2009:X2HEUD45BWYBNGCPUHRAONYUKC

not attested not anchored not stored refs pending

The 1/r singularity in weakly nonlinear fracture mechanics

Ariel Livne, Eran Bouchbinder, Jay Fineberg

arxiv:0902.2121 v1 · 2009-02-12 · cond-mat.mtrl-sci

Open paper page JSON Open Graph Bundle Merged state Verified badge What is a Pith Number?

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{X2HEUD45BWYBNGCPUHRAONYUKC}

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	2026-05-18T02:14:48.163719Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

be8e4a0f9d0db016984fa1e207371450b18b4ec5587d1e664be9b896691582a6

Aliases

arxiv: 0902.2121 · arxiv_version: 0902.2121v1 · doi: 10.48550/arxiv.0902.2121 · pith_short_12: X2HEUD45BWYB · pith_short_16: X2HEUD45BWYBNGCP · pith_short_8: X2HEUD45

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/X2HEUD45BWYBNGCPUHRAONYUKC \
  | 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: be8e4a0f9d0db016984fa1e207371450b18b4ec5587d1e664be9b896691582a6

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "46901ee94fbc45d4640cac26eb769c1b50050d5099948fe5892a8993cdee7bb5",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cond-mat.mtrl-sci",
    "submitted_at": "2009-02-12T14:28:51Z",
    "title_canon_sha256": "953b5a7dbb10203dc6f654034c8db0248bf49ec9f44e3c792c343165d6a55293"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0902.2121",
    "kind": "arxiv",
    "version": 1
  }
}