Pith Number

pith:KS4IOVM4

pith:2011:KS4IOVM43BOJ2ATYTWSA5K4DVA

not attested not anchored not stored refs pending

Saying Hello World with Epsilon - A Solution to the 2011 Instructive Case

Antonio Garc\'ia-Dom\'inguez (Department of Computer Languages, Dimitrios S. Kolovos (Department of Computer Science, Fiona A.C. Polack (Department of Computer Science, James R. Williams (Department of Computer Science, Louis M. Rose (Department of Computer Science, Richard F. Paige (Department of Computer Science, Systems, The University of York), University of C\'adiz)

arxiv:1111.4764 v1 · 2011-11-21 · 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{KS4IOVM43BOJ2ATYTWSA5K4DVA}

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	2026-05-18T04:07:55.114810Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

54b887559cd85c9d02789da40eab83a836bc0b69256d37d9688b42eba59925af

Aliases

arxiv: 1111.4764 · arxiv_version: 1111.4764v1 · doi: 10.48550/arxiv.1111.4764 · pith_short_12: KS4IOVM43BOJ · pith_short_16: KS4IOVM43BOJ2ATY · pith_short_8: KS4IOVM4

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/KS4IOVM43BOJ2ATYTWSA5K4DVA \
  | 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: 54b887559cd85c9d02789da40eab83a836bc0b69256d37d9688b42eba59925af

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "c3046e9e68834189f0a3066710e9a990dfca59425f4cbc72defd5c4ed69502a4",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.SE",
    "submitted_at": "2011-11-21T05:56:02Z",
    "title_canon_sha256": "da420d0efe9bcc2c35c71e4c25678542e1bec3be5c0f64741346189229dc51dc"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1111.4764",
    "kind": "arxiv",
    "version": 1
  }
}