Pith Number

pith:WGFMXA3P

pith:2019:WGFMXA3PH5XAWGMZ6GLW3CAHMW

not attested not anchored not stored refs pending

Hierarchic Superposition Revisited

Peter Baumgartner, Uwe Waldmann

arxiv:1904.03776 v2 · 2019-04-07 · 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{WGFMXA3PH5XAWGMZ6GLW3CAHMW}

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	2026-05-17T23:48:19.657048Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

b18acb836f3f6e0b1999f1976d880765b91576ba011a464bbe40b7b1de5ecef6

Aliases

arxiv: 1904.03776 · arxiv_version: 1904.03776v2 · doi: 10.48550/arxiv.1904.03776 · pith_short_12: WGFMXA3PH5XA · pith_short_16: WGFMXA3PH5XAWGMZ · pith_short_8: WGFMXA3P

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/WGFMXA3PH5XAWGMZ6GLW3CAHMW \
  | 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: b18acb836f3f6e0b1999f1976d880765b91576ba011a464bbe40b7b1de5ecef6

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "9961182676f339f369b0a866256bcd27bbc760b5f6ed93528eb7506c3268837c",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.LO",
    "submitted_at": "2019-04-07T23:45:28Z",
    "title_canon_sha256": "ab4dce8bca060e8d9e705b6feed8fb766579345e1fcf2a1c6a763ce4e76392bf"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1904.03776",
    "kind": "arxiv",
    "version": 2
  }
}