Pith Number

pith:Z5BDWYWQ

pith:2017:Z5BDWYWQ2O2IR52ZUDN526GHHB

not attested not anchored not stored refs pending

A New Technique for Reachability of States in Concatenation Automata

Sylvie Davies

arxiv:1710.05061 v2 · 2017-10-13 · 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{Z5BDWYWQ2O2IR52ZUDN526GHHB}

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	2026-05-18T00:32:33.704116Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

cf423b62d0d3b488f759a0dbdd78c73861952f0569e8383250dd335cbf00228f

Aliases

arxiv: 1710.05061 · arxiv_version: 1710.05061v2 · doi: 10.48550/arxiv.1710.05061 · pith_short_12: Z5BDWYWQ2O2I · pith_short_16: Z5BDWYWQ2O2IR52Z · pith_short_8: Z5BDWYWQ

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/Z5BDWYWQ2O2IR52ZUDN526GHHB \
  | 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: cf423b62d0d3b488f759a0dbdd78c73861952f0569e8383250dd335cbf00228f

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "2393d5249ee8b4e1eb6a2eeff37aa2d3b4242008d0ee58c7373c9aabe4a1d3b3",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.FL",
    "submitted_at": "2017-10-13T19:52:31Z",
    "title_canon_sha256": "de5e82b6f0526a22e1d576ebd48ec851415cbc5436acad15e608568d7f8b3c21"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1710.05061",
    "kind": "arxiv",
    "version": 2
  }
}