Pith Number

pith:7Q5VCXCQ

pith:2012:7Q5VCXCQNFNDP5M7JUBK4KOYLW

not attested not anchored not stored refs pending

Products of rough finite state machines

Shambhu Sharan, S. P. Tiwari

arxiv:1210.7575 v1 · 2012-10-29 · math.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{7Q5VCXCQNFNDP5M7JUBK4KOYLW}

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	2026-05-18T00:56:52.378383Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

fc3b515c50695a37f59f4d02ae29d85da4ce4dd1fd21b049d7b704160ffe1535

Aliases

arxiv: 1210.7575 · arxiv_version: 1210.7575v1 · doi: 10.48550/arxiv.1210.7575 · pith_short_12: 7Q5VCXCQNFND · pith_short_16: 7Q5VCXCQNFNDP5M7 · pith_short_8: 7Q5VCXCQ

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/7Q5VCXCQNFNDP5M7JUBK4KOYLW \
  | 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: fc3b515c50695a37f59f4d02ae29d85da4ce4dd1fd21b049d7b704160ffe1535

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "a9df74d3dc84d5fb239aecc3e31f2ac1423496b560713b3e59e28249bf4c955a",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.LO",
    "submitted_at": "2012-10-29T06:40:26Z",
    "title_canon_sha256": "05deb3835d62bcb74f073cf381508c034767820b883701ca611d7555e1610aad"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1210.7575",
    "kind": "arxiv",
    "version": 1
  }
}