Pith Number

pith:HLIC456W

pith:2016:HLIC456WIIICEO2YPGFRUH6FMN

not attested not anchored not stored refs pending

Finiteness and Computation in Toposes

Edward Hermann Haeusler (PUC-Rio)

arxiv:1603.00978 v1 · 2016-03-03 · 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{HLIC456WIIICEO2YPGFRUH6FMN}

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	2026-05-18T01:19:39.944475Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

3ad02e77d64210223b58798b1a1fc563636d7443e0dcef69167fd44ad0d22917

Aliases

arxiv: 1603.00978 · arxiv_version: 1603.00978v1 · doi: 10.48550/arxiv.1603.00978 · pith_short_12: HLIC456WIIIC · pith_short_16: HLIC456WIIICEO2Y · pith_short_8: HLIC456W

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/HLIC456WIIICEO2YPGFRUH6FMN \
  | 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: 3ad02e77d64210223b58798b1a1fc563636d7443e0dcef69167fd44ad0d22917

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "d0ba72568f36e6a9a1f6fb78f8f74d5987af0b70ff86f9ee0d8d8c5197f758a4",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.LO",
    "submitted_at": "2016-03-03T05:34:10Z",
    "title_canon_sha256": "a8ccec7837b001bb7065b058eedf49147a4d531bf5afcd7c360ca27e98e29269"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1603.00978",
    "kind": "arxiv",
    "version": 1
  }
}