Pith Number

pith:5KBCJQWW

pith:2008:5KBCJQWWIKSDD243AZMA6AAIGV

not attested not anchored not stored refs pending

Separability in the Ambient Logic

Daniel Hirschkoff, Davide Sangiorgi, Etienne Lozes

arxiv:0806.3849 v2 · 2008-06-24 · cs.LO · cs.MA · cs.PL

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{5KBCJQWWIKSDD243AZMA6AAIGV}

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	2026-05-18T01:37:42.406108Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

ea8224c2d642a431eb9b06580f0008354d3194aa1f4b82f1fd87c51b13f25da0

Aliases

arxiv: 0806.3849 · arxiv_version: 0806.3849v2 · doi: 10.48550/arxiv.0806.3849 · pith_short_12: 5KBCJQWWIKSD · pith_short_16: 5KBCJQWWIKSDD243 · pith_short_8: 5KBCJQWW

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/5KBCJQWWIKSDD243AZMA6AAIGV \
  | 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: ea8224c2d642a431eb9b06580f0008354d3194aa1f4b82f1fd87c51b13f25da0

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "9c77777bcfe0d38d217952ba9561d642ba789093ebaad54ac8cf2072056b36b6",
    "cross_cats_sorted": [
      "cs.MA",
      "cs.PL"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.LO",
    "submitted_at": "2008-06-24T10:00:00Z",
    "title_canon_sha256": "01acf1ed708c71ba5f950a306ef44285a6a68b48e769d275300aeb1e9fa0af16"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0806.3849",
    "kind": "arxiv",
    "version": 2
  }
}