Pith Number

pith:YN4JBGXN

pith:2026:YN4JBGXNGT5J23UTZ4T3ZQ26UC

not attested not anchored not stored refs pending

What is 'undone computer science'?

Alberto Naibo, Chantal Enguehard, Guillaume Munch-Maccagnoni

arxiv:2605.26084 v1 · 2026-05-25 · 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{YN4JBGXNGT5J23UTZ4T3ZQ26UC}

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	2026-05-26T02:05:26.392214Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

c378909aed34fa9d6e93cf27bcc35ea0bd2ad407b73a7001204879b3fb334e35

Aliases

arxiv: 2605.26084 · arxiv_version: 2605.26084v1 · doi: 10.48550/arxiv.2605.26084 · pith_short_12: YN4JBGXNGT5J · pith_short_16: YN4JBGXNGT5J23UT · pith_short_8: YN4JBGXN

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/YN4JBGXNGT5J23UTZ4T3ZQ26UC \
  | 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: c378909aed34fa9d6e93cf27bcc35ea0bd2ad407b73a7001204879b3fb334e35

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "472efea74b2677e997cd232897fb172bbd8fd524ec59dee93c4ea84e3ef3b1c4",
    "cross_cats_sorted": [],
    "license": "http://creativecommons.org/licenses/by-nc-nd/4.0/",
    "primary_cat": "cs.CY",
    "submitted_at": "2026-05-25T17:48:12Z",
    "title_canon_sha256": "fbaec14478e59874c8b4c0557ccda576b2b52dd36797bcd763e0be8f68e7ce18"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2605.26084",
    "kind": "arxiv",
    "version": 1
  }
}