Pith Number

pith:3ZI4TDFL

pith:2015:3ZI4TDFLNDTRXKTXX733M5R4I4

not attested not anchored not stored refs pending

Admissibility via Natural Dualities

George Metcalfe, Leonardo Manuel Cabrer

arxiv:1501.06141 v1 · 2015-01-25 · math.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{3ZI4TDFLNDTRXKTXX733M5R4I4}

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	2026-05-18T02:28:42.255058Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

de51c98cab68e71baa77bff7b6763c4703f69b721267314c5188b51ecdb494de

Aliases

arxiv: 1501.06141 · arxiv_version: 1501.06141v1 · doi: 10.48550/arxiv.1501.06141 · pith_short_12: 3ZI4TDFLNDTR · pith_short_16: 3ZI4TDFLNDTRXKTX · pith_short_8: 3ZI4TDFL

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/3ZI4TDFLNDTRXKTXX733M5R4I4 \
  | 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: de51c98cab68e71baa77bff7b6763c4703f69b721267314c5188b51ecdb494de

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "31311c1afa062491b926514c5028e77848e5fe1b1b817ab70f2e394c2f62255c",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.LO",
    "submitted_at": "2015-01-25T11:22:58Z",
    "title_canon_sha256": "2d3acc2192c6c4e14818052cfe1a84f6aaccf1d80cf4591e672998d09b4e3e6a"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1501.06141",
    "kind": "arxiv",
    "version": 1
  }
}