Pith Number

pith:IDJPDNSP

pith:2005:IDJPDNSPGY7NUEADRORRM3VDJX

not attested not anchored not stored refs pending

Searching for a Shoreline

Li-Yan Zhu, Steven R. Finch

arxiv:math/0501123 v2 · 2005-01-09 · math.OC · math.MG

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{IDJPDNSPGY7NUEADRORRM3VDJX}

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	2026-05-18T01:19:06.714473Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

40d2f1b64f363eda10038ba3166ea34dc0dc3e9ada9fae17f622d0650302ab6b

Aliases

arxiv: math/0501123 · arxiv_version: math/0501123v2 · doi: 10.48550/arxiv.math/0501123 · pith_short_12: IDJPDNSPGY7N · pith_short_16: IDJPDNSPGY7NUEAD · pith_short_8: IDJPDNSP

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/IDJPDNSPGY7NUEADRORRM3VDJX \
  | 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: 40d2f1b64f363eda10038ba3166ea34dc0dc3e9ada9fae17f622d0650302ab6b

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "13ec5f5c58e3c9ef3d50a6abe37c4e9c3adceb3aeca34199f7a505766e529368",
    "cross_cats_sorted": [
      "math.MG"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.OC",
    "submitted_at": "2005-01-09T15:29:21Z",
    "title_canon_sha256": "d388d154093c8186641d5f2a2dcf5c131caf8f8ab0d9d27d78e750edc9550c74"
  },
  "schema_version": "1.0",
  "source": {
    "id": "math/0501123",
    "kind": "arxiv",
    "version": 2
  }
}