Pith Number

pith:JE7PJXMR

pith:2013:JE7PJXMRNGDIVHMSWDROD6BG6C

not attested not anchored not stored refs pending

Determining Points on Handwritten Mathematical Symbols

Rui Hu, Stephen M. Watt

arxiv:1306.4966 v1 · 2013-06-20 · cs.CV · cs.CY

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{JE7PJXMRNGDIVHMSWDROD6BG6C}

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	2026-05-18T03:20:21.069690Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

493ef4dd9169868a9d92b0e2e1f826f0b51d9afc5a9c4b543b9e76d186a7e5bd

Aliases

arxiv: 1306.4966 · arxiv_version: 1306.4966v1 · doi: 10.48550/arxiv.1306.4966 · pith_short_12: JE7PJXMRNGDI · pith_short_16: JE7PJXMRNGDIVHMS · pith_short_8: JE7PJXMR

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/JE7PJXMRNGDIVHMSWDROD6BG6C \
  | 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: 493ef4dd9169868a9d92b0e2e1f826f0b51d9afc5a9c4b543b9e76d186a7e5bd

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "6846bb026a083c1cd9e70795f1c66635a3814d59184310fec66c1e23482e0d2b",
    "cross_cats_sorted": [
      "cs.CY"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.CV",
    "submitted_at": "2013-06-20T19:38:07Z",
    "title_canon_sha256": "aa1c1bc664f6860baf7e2dfe2ca91f696a3bdb188af2a5ad8aec564333c6e2d1"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1306.4966",
    "kind": "arxiv",
    "version": 1
  }
}