Pith Number

pith:ECJWESUJ

pith:2018:ECJWESUJEXLAEDLRIJQ4EA3KZ7

not attested not anchored not stored refs pending

Entombed: An archaeological examination of an Atari 2600 game

Canada), John Aycock (University of Calgary, Tara Copplestone (University of York, United Kingdom)

arxiv:1811.02035 v1 · 2018-11-05 · cs.SE · cs.CY

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{ECJWESUJEXLAEDLRIJQ4EA3KZ7}

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	2026-05-18T00:01:25.166351Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

2093624a8925d6020d714261c2036acfe065c06a2ec05840ed6fa856aaab9e1b

Aliases

arxiv: 1811.02035 · arxiv_version: 1811.02035v1 · doi: 10.48550/arxiv.1811.02035 · pith_short_12: ECJWESUJEXLA · pith_short_16: ECJWESUJEXLAEDLR · pith_short_8: ECJWESUJ

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/ECJWESUJEXLAEDLRIJQ4EA3KZ7 \
  | 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: 2093624a8925d6020d714261c2036acfe065c06a2ec05840ed6fa856aaab9e1b

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "111e12ea1d7c9499cc1af852baa90d3073328d65167b0c349b7cf031ef24b7a8",
    "cross_cats_sorted": [
      "cs.CY"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.SE",
    "submitted_at": "2018-11-05T21:08:09Z",
    "title_canon_sha256": "4cd493019a2e870ea1ab012ea01951b94bf4eaf81da45baab908a6bf9df4dc26"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1811.02035",
    "kind": "arxiv",
    "version": 1
  }
}