Pith Number

pith:77L2ZPB6

pith:2018:77L2ZPB63UB6YCCWWTBPQCTZZS

not attested not anchored not stored refs pending

Herdable Systems Over Signed, Directed Graphs

Jeff S. Shamma, Magnus Egerstedt, Sebastian F. Ruf

arxiv:1804.04230 v1 · 2018-04-11 · cs.SY

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{77L2ZPB63UB6YCCWWTBPQCTZZS}

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	2026-05-18T00:18:40.305983Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

ffd7acbc3edd03ec0856b4c2f80a79cc8b683b4352597ef946d1314676cd4c16

Aliases

arxiv: 1804.04230 · arxiv_version: 1804.04230v1 · doi: 10.48550/arxiv.1804.04230 · pith_short_12: 77L2ZPB63UB6 · pith_short_16: 77L2ZPB63UB6YCCW · pith_short_8: 77L2ZPB6

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/77L2ZPB63UB6YCCWWTBPQCTZZS \
  | 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: ffd7acbc3edd03ec0856b4c2f80a79cc8b683b4352597ef946d1314676cd4c16

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "a6e9da8f782cfc279739056428b1f94faa453a992e0cb1acab42fc3f7a522bdc",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.SY",
    "submitted_at": "2018-04-11T21:29:13Z",
    "title_canon_sha256": "391fc060529f7bc060d1937d9b63aeacf45a08531f7b33f36cd3d8be6bd3ee6e"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1804.04230",
    "kind": "arxiv",
    "version": 1
  }
}