Pith Number

pith:7DBLKK3W

pith:2012:7DBLKK3W35TYY6ASLVLHBLW6GT

not attested not anchored not stored refs pending

Applying G\"odel's Dialectica Interpretation to Obtain a Constructive Proof of Higman's Lemma

Thomas Powell (Queen Mary, United Kingdom), University of London

arxiv:1210.3117 v1 · 2012-10-11 · cs.LO · cs.DM

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{7DBLKK3W35TYY6ASLVLHBLW6GT}

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	2026-05-18T03:43:29.019141Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

f8c2b52b76df678c78125d5670aede34e86e098e7b01a43da582e7adc41b51d4

Aliases

arxiv: 1210.3117 · arxiv_version: 1210.3117v1 · doi: 10.48550/arxiv.1210.3117 · pith_short_12: 7DBLKK3W35TY · pith_short_16: 7DBLKK3W35TYY6AS · pith_short_8: 7DBLKK3W

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/7DBLKK3W35TYY6ASLVLHBLW6GT \
  | 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: f8c2b52b76df678c78125d5670aede34e86e098e7b01a43da582e7adc41b51d4

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "e7de9aae9800e6fece0da6bdf315cab43b688f97da3b0b4bb10c9b2d9c25b0d5",
    "cross_cats_sorted": [
      "cs.DM"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.LO",
    "submitted_at": "2012-10-11T03:52:29Z",
    "title_canon_sha256": "8d051c2395da716f9b2df9f6efa4e9f4aadba39ddfc8c0d2d1b6c4d6580611a9"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1210.3117",
    "kind": "arxiv",
    "version": 1
  }
}