Pith Number

pith:2TYCQF3O

pith:2017:2TYCQF3OOMMRYJX2XP3IXZTF5K

not attested not anchored not stored refs pending

Initial steps towards assessing the usability of a verification tool

Leonard Johard, Mansur Khazeev, Manuel Mazzara, Victor Rivera

arxiv:1704.05008 v2 · 2017-04-17 · cs.SE

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{2TYCQF3OOMMRYJX2XP3IXZTF5K}

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	2026-05-18T00:42:12.168611Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

d4f028176e73191c26fabbf68be665eabb69c6a9e628a67dc3ab0f778c52ca8a

Aliases

arxiv: 1704.05008 · arxiv_version: 1704.05008v2 · doi: 10.48550/arxiv.1704.05008 · pith_short_12: 2TYCQF3OOMMR · pith_short_16: 2TYCQF3OOMMRYJX2 · pith_short_8: 2TYCQF3O

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/2TYCQF3OOMMRYJX2XP3IXZTF5K \
  | 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: d4f028176e73191c26fabbf68be665eabb69c6a9e628a67dc3ab0f778c52ca8a

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "56bd8b0cd4089ab42bc9455db8835979ebdef6392fabe3f1b4d40c7cfc27ca53",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.SE",
    "submitted_at": "2017-04-17T16:04:49Z",
    "title_canon_sha256": "bb5eaeb4e5f8ff7a0efb489405cd8cbcdd70fc978c33c9d73fd09cca4a22b23d"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1704.05008",
    "kind": "arxiv",
    "version": 2
  }
}