Pith Number

pith:UNYBT7ZM

pith:2017:UNYBT7ZMYZA4WTU2LOROERXFAX

not attested not anchored not stored refs pending

Verification of PCP-Related Computational Reductions in Coq

Edith Heiter, Gert Smolka, Yannick Forster

arxiv:1711.07023 v2 · 2017-11-19 · cs.LO · cs.FL

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{UNYBT7ZMYZA4WTU2LOROERXFAX}

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.

Cited by

1 paper in Pith

Undecidability of $D_{<:}$ and Its Decidable Fragments

Receipt and verification

First computed	2026-07-05T05:23:27.474589Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

a37019ff2cc641cb4e9a5ba2e246e505d6f7ffedfdb00d4d94c174b6c911ec5b

Aliases

arxiv: 1711.07023 · arxiv_version: 1711.07023v2 · doi: 10.48550/arxiv.1711.07023 · pith_short_12: UNYBT7ZMYZA4 · pith_short_16: UNYBT7ZMYZA4WTU2 · pith_short_8: UNYBT7ZM

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/UNYBT7ZMYZA4WTU2LOROERXFAX \
  | 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: a37019ff2cc641cb4e9a5ba2e246e505d6f7ffedfdb00d4d94c174b6c911ec5b

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "615c46dcb713c689eebe3041580c33e05a1e48720eeda09b5d04219a982921ac",
    "cross_cats_sorted": [
      "cs.FL"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.LO",
    "submitted_at": "2017-11-19T14:15:45Z",
    "title_canon_sha256": "b61ab6fc7ff60e1560a42ba0c68f02b3706dacf3c91bfe6e3fa8f484388ef184"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1711.07023",
    "kind": "arxiv",
    "version": 2
  }
}