Pith Number

pith:WZ37XAPM

pith:2012:WZ37XAPMAWNCLS57TPKN6D2WZ6

not attested not anchored not stored refs pending

First steps in synthetic guarded domain theory: step-indexing in the topos of trees

Jan Schwinghammer (Saarland University), Kristian St{\o}vring (DIKU, Lars Birkedal (IT University of Copenhagen), Rasmus Ejlers M{\o}gelberg (IT University of Copenhagen), University of Copenhagen)

arxiv:1208.3596 v2 · 2012-08-17 · 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{WZ37XAPMAWNCLS57TPKN6D2WZ6}

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	2026-05-18T01:37:38.600472Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

b677fb81ec059a25cbbf9bd4df0f56cf9436471173878126c0dadc6bf3ae3f6d

Aliases

arxiv: 1208.3596 · arxiv_version: 1208.3596v2 · doi: 10.48550/arxiv.1208.3596 · pith_short_12: WZ37XAPMAWNC · pith_short_16: WZ37XAPMAWNCLS57 · pith_short_8: WZ37XAPM

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/WZ37XAPMAWNCLS57TPKN6D2WZ6 \
  | 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: b677fb81ec059a25cbbf9bd4df0f56cf9436471173878126c0dadc6bf3ae3f6d

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "3e12f08622c39bf0e62d38a3a62e7de288b424addb801659e72a10ad382130b6",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.LO",
    "submitted_at": "2012-08-17T13:40:49Z",
    "title_canon_sha256": "006d68bcacaf179654e24b58164a9c550ed4ec279e29518e0ba3fbac8cbe9689"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1208.3596",
    "kind": "arxiv",
    "version": 2
  }
}