Pith Number

pith:L5EXFJHG

pith:2014:L5EXFJHGCH7P2MT3D3K572SLE4

not attested not anchored not stored refs pending

What are the fundamental structures of concurrency? We still don't know!

Samson Abramsky

arxiv:1401.4973 v1 · 2014-01-20 · cs.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{L5EXFJHGCH7P2MT3D3K572SLE4}

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	2026-05-18T03:01:43.812520Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

5f4972a4e611fefd327b1ed5dfea4b270f1c1eb5fb41a6273621101a63e0f74a

Aliases

arxiv: 1401.4973 · arxiv_version: 1401.4973v1 · doi: 10.48550/arxiv.1401.4973 · pith_short_12: L5EXFJHGCH7P · pith_short_16: L5EXFJHGCH7P2MT3 · pith_short_8: L5EXFJHG

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/L5EXFJHGCH7P2MT3D3K572SLE4 \
  | 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: 5f4972a4e611fefd327b1ed5dfea4b270f1c1eb5fb41a6273621101a63e0f74a

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "000fb008c813d277e674db6782e007727f34e34c715c630f3dd93f0299239abe",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.LO",
    "submitted_at": "2014-01-20T16:35:23Z",
    "title_canon_sha256": "632b59468bc313a93be9216c46d903318e3a1080d19f1c14c577e2cac0c36d00"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1401.4973",
    "kind": "arxiv",
    "version": 1
  }
}