Pith Number

pith:ADNIFP6E

pith:2019:ADNIFP6EGYWFGMCXQLDVQ2BU3L

not attested not anchored not stored refs pending

On coherent topoi & coherent $1$-localic $\infty$-topoi

Peter J. Haine

arxiv:1904.01877 v2 · 2019-04-03 · math.AG · math.AT · 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{ADNIFP6EGYWFGMCXQLDVQ2BU3L}

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	2026-05-17T23:40:55.253709Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

00da82bfc4362c53305782c7586834dae600bd606ac598fcb9c438fae2284760

Aliases

arxiv: 1904.01877 · arxiv_version: 1904.01877v2 · doi: 10.48550/arxiv.1904.01877 · pith_short_12: ADNIFP6EGYWF · pith_short_16: ADNIFP6EGYWFGMCX · pith_short_8: ADNIFP6E

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/ADNIFP6EGYWFGMCXQLDVQ2BU3L \
  | 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: 00da82bfc4362c53305782c7586834dae600bd606ac598fcb9c438fae2284760

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "e5ef7a71b7927bcddcdf4757848b30b9c296beea1d64c9aba4763d562773816e",
    "cross_cats_sorted": [
      "math.AT",
      "math.CT"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.AG",
    "submitted_at": "2019-04-03T09:35:19Z",
    "title_canon_sha256": "4f6617b1ac935c59a730770147930b237c748a78c9079873022248305c3bc976"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1904.01877",
    "kind": "arxiv",
    "version": 2
  }
}