Pith Number

pith:BQCUPSMI

pith:2025:BQCUPSMIVRME7UYA46NP2Q6TT4

not attested not anchored not stored refs pending

Fast Pattern Matching with Epsilon Transitions

Nicola Cotumaccio

arxiv:2505.04549 v1 · 2025-05-07 · cs.DS

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{BQCUPSMIVRME7UYA46NP2Q6TT4}

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	2026-07-05T11:48:03.270329Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

0c0547c988ac584fd300e79afd43d39f3dfde0ceac06a8d53fb156be011a3d5e

Aliases

arxiv: 2505.04549 · arxiv_version: 2505.04549v1 · doi: 10.48550/arxiv.2505.04549 · pith_short_12: BQCUPSMIVRME · pith_short_16: BQCUPSMIVRME7UYA · pith_short_8: BQCUPSMI

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/BQCUPSMIVRME7UYA46NP2Q6TT4 \
  | 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: 0c0547c988ac584fd300e79afd43d39f3dfde0ceac06a8d53fb156be011a3d5e

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "5f04f19cadde360e605ea026c3f9484b9b40a912098a438022a03c6edab9c144",
    "cross_cats_sorted": [],
    "license": "http://creativecommons.org/licenses/by-nc-nd/4.0/",
    "primary_cat": "cs.DS",
    "submitted_at": "2025-05-07T16:31:21Z",
    "title_canon_sha256": "7af617875f7e6c49951eaaa291bcf08898901b5e369c0963879d899068cb9724"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2505.04549",
    "kind": "arxiv",
    "version": 1
  }
}