Pith Number

pith:CRU42AAV

pith:2011:CRU42AAVMKTJTIWYASSOODI44G

not attested not anchored not stored refs pending

Efficient and Playful Tools to Teach Unix to New Students

Matthieu Moy (VERIMAG - IMAG)

arxiv:1103.1717 v1 · 2011-03-09 · cs.OS

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{CRU42AAVMKTJTIWYASSOODI44G}

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	2026-05-18T04:27:05.925185Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

1469cd001562a699a2d804a4e70d1ce1a36a918ca983dfe4f5acd23d91f76172

Aliases

arxiv: 1103.1717 · arxiv_version: 1103.1717v1 · doi: 10.48550/arxiv.1103.1717 · pith_short_12: CRU42AAVMKTJ · pith_short_16: CRU42AAVMKTJTIWY · pith_short_8: CRU42AAV

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/CRU42AAVMKTJTIWYASSOODI44G \
  | 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: 1469cd001562a699a2d804a4e70d1ce1a36a918ca983dfe4f5acd23d91f76172

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "3efa8325c7225f2b4cb3b0be3d5a28875ab8897c12fd90e01c3f50ac71a387d3",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.OS",
    "submitted_at": "2011-03-09T07:25:00Z",
    "title_canon_sha256": "5d4e0bb4b3d245299e5fc38a64ff0bb7e762c57eb056db3f3ae37781d3640616"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1103.1717",
    "kind": "arxiv",
    "version": 1
  }
}