Pith Number

pith:IBX4BEL3

pith:2013:IBX4BEL3WO7GPR6SGL5DW3ULQU

not attested not anchored not stored refs pending

Appropriate and Inappropriate Estimation Techniques

David Sher

arxiv:1304.3110 v1 · 2013-03-27 · cs.AI

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{IBX4BEL3WO7GPR6SGL5DW3ULQU}

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	2026-05-18T03:28:18.674876Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

406fc0917bb3be67c7d232fa3b6e8b851225fa5cbcbf5bed800115053e3c288b

Aliases

arxiv: 1304.3110 · arxiv_version: 1304.3110v1 · doi: 10.48550/arxiv.1304.3110 · pith_short_12: IBX4BEL3WO7G · pith_short_16: IBX4BEL3WO7GPR6S · pith_short_8: IBX4BEL3

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/IBX4BEL3WO7GPR6SGL5DW3ULQU \
  | 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: 406fc0917bb3be67c7d232fa3b6e8b851225fa5cbcbf5bed800115053e3c288b

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "4c8ffcb2056b28ecc99dcc1b8da449433c2a0ff1dee6eff51ecf42d79f4c1c4e",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.AI",
    "submitted_at": "2013-03-27T19:54:15Z",
    "title_canon_sha256": "2224dd6fd02ab3b2fd98b0a7d436d4b9b9acde68d8643ffbdec7b06523d0d29d"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1304.3110",
    "kind": "arxiv",
    "version": 1
  }
}