Pith Number

pith:MPO4HNSF

pith:2015:MPO4HNSFPZNXD3Y6EENWKXUXHA

not attested not anchored not stored refs pending

A Context-Oriented Extension of F#

Andrea Canciani (Dipartimento di Informatica, Gian-Luigi Ferrari (Dipartimento di Informatica, Italy), Letterio Galletta (Dipartimento di Informatica, Pierpaolo Degano (Dipartimento di Informatica, Pisa, Universit\`a di Pisa

arxiv:1512.07681 v1 · 2015-12-24 · 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{MPO4HNSFPZNXD3Y6EENWKXUXHA}

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	2026-05-18T01:23:48.761714Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

63ddc3b6457e5b71ef1e211b655e97382f2ad64a25d8a551e4cd617ddf36d4ff

Aliases

arxiv: 1512.07681 · arxiv_version: 1512.07681v1 · doi: 10.48550/arxiv.1512.07681 · pith_short_12: MPO4HNSFPZNX · pith_short_16: MPO4HNSFPZNXD3Y6 · pith_short_8: MPO4HNSF

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/MPO4HNSFPZNXD3Y6EENWKXUXHA \
  | 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: 63ddc3b6457e5b71ef1e211b655e97382f2ad64a25d8a551e4cd617ddf36d4ff

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "67700e81762105ba93d484bb709830acf250850465dd627275afa1299484f6a8",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.PL",
    "submitted_at": "2015-12-24T01:39:47Z",
    "title_canon_sha256": "62b61da2d2d4ef39e6a963c2305ce6872eb9d180b21d93420e8efb1ccf960eac"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1512.07681",
    "kind": "arxiv",
    "version": 1
  }
}