Pith Number

pith:DSOMET5H

pith:2012:DSOMET5HDH3JNBQPFC5VNLDDAR

not attested not anchored not stored refs pending

Exercices de style: A homotopy theory for set theory II

Assaf Hasson, Misha Gavrilovich

arxiv:1204.6228 v1 · 2012-04-27 · math.CT

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{DSOMET5HDH3JNBQPFC5VNLDDAR}

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	2026-05-18T03:56:46.711070Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

1c9cc24fa719f696860f28bb56ac630456657b5364880cb243d175b5e1199ca6

Aliases

arxiv: 1204.6228 · arxiv_version: 1204.6228v1 · doi: 10.48550/arxiv.1204.6228 · pith_short_12: DSOMET5HDH3J · pith_short_16: DSOMET5HDH3JNBQP · pith_short_8: DSOMET5H

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/DSOMET5HDH3JNBQPFC5VNLDDAR \
  | 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: 1c9cc24fa719f696860f28bb56ac630456657b5364880cb243d175b5e1199ca6

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "32631ca5acefdcd5b95c346f884c0ab98c7ee526db5f6f09bf9a00b5321e8a6e",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.CT",
    "submitted_at": "2012-04-27T14:39:04Z",
    "title_canon_sha256": "89b73d31a27e16df78e86e0cb032cc9028d0026060df2deb3a0e0629bb728a12"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1204.6228",
    "kind": "arxiv",
    "version": 1
  }
}