Pith Number

pith:VRCCFUNQ

pith:2020:VRCCFUNQKHVIDAPMOZIZCG5UMU

not attested not anchored not stored refs pending

The Hierarchy of Hyperlogics

Bernd Finkbeiner, Christopher Hahn, Jana Hofmann, Norine Coenen

arxiv:2005.05934 v1 · 2020-05-12 · cs.LO

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{VRCCFUNQKHVIDAPMOZIZCG5UMU}

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	2026-07-05T01:02:25.021760Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

ac4422d1b051ea8181ec7651911bb4650e06eac03b9d5b0a33e3895ab7a7f246

Aliases

arxiv: 2005.05934 · arxiv_version: 2005.05934v1 · doi: 10.48550/arxiv.2005.05934 · pith_short_12: VRCCFUNQKHVI · pith_short_16: VRCCFUNQKHVIDAPM · pith_short_8: VRCCFUNQ

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/VRCCFUNQKHVIDAPMOZIZCG5UMU \
  | 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: ac4422d1b051ea8181ec7651911bb4650e06eac03b9d5b0a33e3895ab7a7f246

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "ac7fb26770439e5e34671036d2b6a28e742deb61b889a3a71a7f6936b5e990c7",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.LO",
    "submitted_at": "2020-05-12T17:25:44Z",
    "title_canon_sha256": "4761c1bde4faf90a30d33c998a612b8a01b5016cd2ce2eabd1bce387fbde3588"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2005.05934",
    "kind": "arxiv",
    "version": 1
  }
}