Pith Number

pith:EXX6OTRN

pith:2016:EXX6OTRNAXOKMZ2E5KSWBIR7JR

not attested not anchored not stored refs pending

The Algebra of Open and Interconnected Systems

Brendan Fong

arxiv:1609.05382 v1 · 2016-09-17 · math.CT

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{EXX6OTRNAXOKMZ2E5KSWBIR7JR}

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	2026-05-18T01:04:26.566577Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

25efe74e2d05dca66744eaa560a23f4c5da3680323f789753cfd016ca683f3fc

Aliases

arxiv: 1609.05382 · arxiv_version: 1609.05382v1 · doi: 10.48550/arxiv.1609.05382 · pith_short_12: EXX6OTRNAXOK · pith_short_16: EXX6OTRNAXOKMZ2E · pith_short_8: EXX6OTRN

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/EXX6OTRNAXOKMZ2E5KSWBIR7JR \
  | 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: 25efe74e2d05dca66744eaa560a23f4c5da3680323f789753cfd016ca683f3fc

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "f252bee566103882e619b49b982e74804e617f7e36d21000afd59f005df9d563",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.CT",
    "submitted_at": "2016-09-17T19:52:39Z",
    "title_canon_sha256": "0b685934ea6487e135fe6c868386a2314e526a8e52dbf739182017c85d9c8677"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1609.05382",
    "kind": "arxiv",
    "version": 1
  }
}