Pith Number

pith:VU3BPG3S

pith:2011:VU3BPG3SSYQMRSYHID5ANFRSCT

not attested not anchored not stored refs pending

The Design and Implementation of Typed Scheme: From Scripts to Programs

Matthias Felleisen, Sam Tobin-Hochstadt

arxiv:1106.2575 v1 · 2011-06-13 · 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{VU3BPG3SSYQMRSYHID5ANFRSCT}

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	2026-05-18T04:20:05.376390Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

ad36179b729620c8cb0740fa06963214e53e66451f72f436b53bfb42a18fa79d

Aliases

arxiv: 1106.2575 · arxiv_version: 1106.2575v1 · doi: 10.48550/arxiv.1106.2575 · pith_short_12: VU3BPG3SSYQM · pith_short_16: VU3BPG3SSYQMRSYH · pith_short_8: VU3BPG3S

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/VU3BPG3SSYQMRSYHID5ANFRSCT \
  | 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: ad36179b729620c8cb0740fa06963214e53e66451f72f436b53bfb42a18fa79d

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "e7a5f5c2fee71c350295cbd991a93c39c4e78443eb94399917d372d35286f74a",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.PL",
    "submitted_at": "2011-06-13T23:41:05Z",
    "title_canon_sha256": "cec0bb75e54c6938dde9de3a7d12908e12af26d5a7bf1ead439038f1eecb6ef6"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1106.2575",
    "kind": "arxiv",
    "version": 1
  }
}