Pith Number

pith:UG3HY6JZ

pith:2007:UG3HY6JZD4FCK7K5TA4QZHWCG3

not attested not anchored not stored refs pending

Attribute Estimation and Testing Quasi-Symmetry

Krzysztof Majewski, Nicholas Pippenger

arxiv:0708.2105 v1 · 2007-08-15 · cs.CC

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{UG3HY6JZD4FCK7K5TA4QZHWCG3}

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	2026-07-04T15:03:39.118850Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

a1b67c79391f0a257d5d98390c9ec236f6815f6f47e0dead366d1004364925a5

Aliases

arxiv: 0708.2105 · arxiv_version: 0708.2105v1 · doi: 10.48550/arxiv.0708.2105 · pith_short_12: UG3HY6JZD4FC · pith_short_16: UG3HY6JZD4FCK7K5 · pith_short_8: UG3HY6JZ

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/UG3HY6JZD4FCK7K5TA4QZHWCG3 \
  | 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: a1b67c79391f0a257d5d98390c9ec236f6815f6f47e0dead366d1004364925a5

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "55c479b562949f323cc177d4a40c908db520d459705efd95b3b19cf6a68e806a",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "cs.CC",
    "submitted_at": "2007-08-15T20:56:22Z",
    "title_canon_sha256": "96496f8eaefa3805c4bbb7d492766fa5e30a63d090cf0e78c5dfd969477644c7"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0708.2105",
    "kind": "arxiv",
    "version": 1
  }
}