Pith Number

pith:PFIJ3UF6

pith:2018:PFIJ3UF6U4CVYELTGKHNHWBGJD

not attested not anchored not stored refs pending

Equivariant ZFA with Choice: a position paper

Murdoch J. Gabbay

arxiv:1803.08727 v1 · 2018-03-23 · cs.LO · 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{PFIJ3UF6U4CVYELTGKHNHWBGJD}

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	2026-05-18T00:20:18.699203Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

79509dd0bea7055c1173328ed3d82648d39b7db050d2e074dac101da769b895b

Aliases

arxiv: 1803.08727 · arxiv_version: 1803.08727v1 · doi: 10.48550/arxiv.1803.08727 · pith_short_12: PFIJ3UF6U4CV · pith_short_16: PFIJ3UF6U4CVYELT · pith_short_8: PFIJ3UF6

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/PFIJ3UF6U4CVYELTGKHNHWBGJD \
  | 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: 79509dd0bea7055c1173328ed3d82648d39b7db050d2e074dac101da769b895b

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "ee4cf7bc1bd94148c3e1b8ed1501980b75e7fd7478c297d1f7a4f2b07cd50df1",
    "cross_cats_sorted": [
      "math.LO"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.LO",
    "submitted_at": "2018-03-23T10:44:48Z",
    "title_canon_sha256": "0d169c7cd18b3c7f077af3aee4848209889eb83fc60dc983ea89d7ab888bfea2"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1803.08727",
    "kind": "arxiv",
    "version": 1
  }
}