Pith Number

pith:UW3FCF4Q

pith:2021:UW3FCF4QQ2OQMSU7CVUEX4UQMW

not attested not anchored not stored refs pending

On Problems Dual to Unification: The String-Rewriting Case

Andrew Pulver, Daniel S. Hono II, Kimberly A. Cornell, Paliath Narendran, Z\"umr\"ut Ak\c{c}am

arxiv:2103.00386 v2 · 2021-02-28 · 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{UW3FCF4QQ2OQMSU7CVUEX4UQMW}

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

Right Divisibility in Erasing Semi-Thue Systems: A Minimal View of Intruder Deduction

Receipt and verification

First computed	2026-07-05T07:29:24.228026Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

a5b6511790869d064a9f15684bf29065bdd57d737a5b8136a74b9d6a96627912

Aliases

arxiv: 2103.00386 · arxiv_version: 2103.00386v2 · doi: 10.48550/arxiv.2103.00386 · pith_short_12: UW3FCF4QQ2OQ · pith_short_16: UW3FCF4QQ2OQMSU7 · pith_short_8: UW3FCF4Q

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/UW3FCF4QQ2OQMSU7CVUEX4UQMW \
  | 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: a5b6511790869d064a9f15684bf29065bdd57d737a5b8136a74b9d6a96627912

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "3aefd64235b03b11b56261af74c48f58ae913f71dfafee78f21d513251cab7c7",
    "cross_cats_sorted": [],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "cs.LO",
    "submitted_at": "2021-02-28T03:34:02Z",
    "title_canon_sha256": "8bdd46c8931cc524b523dbb580609019fa741dd9ee9184b45dec0b02718258ac"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2103.00386",
    "kind": "arxiv",
    "version": 2
  }
}