Pith Number

pith:YY76E56Q

pith:2015:YY76E56QAH6S6UVPXHDDFG2ZPY

not attested not anchored not stored refs pending

Several types of types in programming languages

Simone Martini

arxiv:1510.03726 v2 · 2015-10-13 · 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{YY76E56QAH6S6UVPXHDDFG2ZPY}

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	2026-05-18T00:47:43.234420Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

c63fe277d001fd2f52afb9c6329b597e3a1149028ced3ee2ccd22b1af96b9e2e

Aliases

arxiv: 1510.03726 · arxiv_version: 1510.03726v2 · doi: 10.48550/arxiv.1510.03726 · pith_short_12: YY76E56QAH6S · pith_short_16: YY76E56QAH6S6UVP · pith_short_8: YY76E56Q

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/YY76E56QAH6S6UVPXHDDFG2ZPY \
  | 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: c63fe277d001fd2f52afb9c6329b597e3a1149028ced3ee2ccd22b1af96b9e2e

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "7155d768951303fa1ffe2659a62e35605a03845142a82a3e8583b7701f8f0eb9",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.PL",
    "submitted_at": "2015-10-13T15:05:47Z",
    "title_canon_sha256": "a1162a07803a7c7a3ec13d5e4302c27701954e05b3ea9a9bf661d3f3706ea1be"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1510.03726",
    "kind": "arxiv",
    "version": 2
  }
}