Pith Number

pith:NPKJ5URP

pith:2015:NPKJ5URPZXBXKAHUN6TUBPX6WE

not attested not anchored not stored refs pending

On insertion-deletion systems over relational words

Igor Potapov, Olena Prianychnykova, Sergey Verlan

arxiv:1510.03231 v1 · 2015-10-12 · 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{NPKJ5URPZXBXKAHUN6TUBPX6WE}

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	2026-05-18T01:30:32.433435Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

6bd49ed22fcdc37500f46fa740befeb125083aaab22a9c6fddfd47a07fc0cfc0

Aliases

arxiv: 1510.03231 · arxiv_version: 1510.03231v1 · doi: 10.48550/arxiv.1510.03231 · pith_short_12: NPKJ5URPZXBX · pith_short_16: NPKJ5URPZXBXKAHU · pith_short_8: NPKJ5URP

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/NPKJ5URPZXBXKAHUN6TUBPX6WE \
  | 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: 6bd49ed22fcdc37500f46fa740befeb125083aaab22a9c6fddfd47a07fc0cfc0

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "67e8081474700dd8e36638709339f8afe24e827ab3ddb29c804809f03fbedc17",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.FL",
    "submitted_at": "2015-10-12T11:14:51Z",
    "title_canon_sha256": "054323d4a16fb18fd1de0ad412ade5bac6060babd9f43beefac136f9259bb0c7"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1510.03231",
    "kind": "arxiv",
    "version": 1
  }
}