Pith Number

pith:5IEWVCF4

pith:2010:5IEWVCF4SFQ2GSNI6G6DKCGADT

not attested not anchored not stored refs pending

Matrix Insertion-Deletion Systems

Ion Petre, Sergey Verlan

arxiv:1012.5248 v1 · 2010-12-23 · cs.FL · cs.CC · cs.CL · 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{5IEWVCF4SFQ2GSNI6G6DKCGADT}

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	2026-05-18T04:32:35.539563Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

ea096a88bc9161a349a8f1bc3508c01cc73e625ec71b8000d87995a4e1afb63a

Aliases

arxiv: 1012.5248 · arxiv_version: 1012.5248v1 · doi: 10.48550/arxiv.1012.5248 · pith_short_12: 5IEWVCF4SFQ2 · pith_short_16: 5IEWVCF4SFQ2GSNI · pith_short_8: 5IEWVCF4

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/5IEWVCF4SFQ2GSNI6G6DKCGADT \
  | 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: ea096a88bc9161a349a8f1bc3508c01cc73e625ec71b8000d87995a4e1afb63a

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "78a154443c5e2c80858e7325ebe813d51a11820f65f4fa0b4cefbbec50e43984",
    "cross_cats_sorted": [
      "cs.CC",
      "cs.CL",
      "cs.DM"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.FL",
    "submitted_at": "2010-12-23T17:00:40Z",
    "title_canon_sha256": "e13e6a6a9f2bc91ad161f0ae03590c48eeb6b2611e02f9f9493e221cf2947186"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1012.5248",
    "kind": "arxiv",
    "version": 1
  }
}