Pith Number

pith:SIOJLAYX

pith:2015:SIOJLAYXCNELSDVPMW5AHJ46SJ

not attested not anchored not stored refs pending

Notions of bidirectional computation and entangled state monads

Faris Abou-Saleh, James Cheney, James McKinna, Jeremy Gibbons, Perdita Stevens

arxiv:1505.02579 v1 · 2015-05-11 · cs.PL · cs.SE

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{SIOJLAYXCNELSDVPMW5AHJ46SJ}

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	2026-05-18T00:35:44.498493Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

921c9583171348b90eaf65ba03a79e924d3914eddae38ffb7343d51aca88e6d7

Aliases

arxiv: 1505.02579 · arxiv_version: 1505.02579v1 · doi: 10.48550/arxiv.1505.02579 · pith_short_12: SIOJLAYXCNEL · pith_short_16: SIOJLAYXCNELSDVP · pith_short_8: SIOJLAYX

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/SIOJLAYXCNELSDVPMW5AHJ46SJ \
  | 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: 921c9583171348b90eaf65ba03a79e924d3914eddae38ffb7343d51aca88e6d7

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "b94413e97a6816b15325c7a8d3480edbc992abc73d42a6dcc8184eacc418c65b",
    "cross_cats_sorted": [
      "cs.SE"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.PL",
    "submitted_at": "2015-05-11T12:11:08Z",
    "title_canon_sha256": "a3b347c9c2c1ea3d0bbdd99757bb9f94117578d57519ad002d1640f47cf4e8b4"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1505.02579",
    "kind": "arxiv",
    "version": 1
  }
}