Pith Number

pith:I3W53IWL

pith:2019:I3W53IWLU6YOEJ5EZ4EHQ3SPW3

not attested not anchored not stored refs pending

Preservation of normality by non-oblivious group selection

Joseph Vandehey, Olivier Carton

arxiv:1905.05801 v1 · 2019-05-03 · cs.FL · cs.LO · math.CO

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{I3W53IWLU6YOEJ5EZ4EHQ3SPW3}

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	2026-05-17T23:46:08.505218Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

46eddda2cba7b0e227a4cf08786e4fb6c57bd2d6e349f26735b739ebf7954623

Aliases

arxiv: 1905.05801 · arxiv_version: 1905.05801v1 · doi: 10.48550/arxiv.1905.05801 · pith_short_12: I3W53IWLU6YO · pith_short_16: I3W53IWLU6YOEJ5E · pith_short_8: I3W53IWL

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/I3W53IWLU6YOEJ5EZ4EHQ3SPW3 \
  | 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: 46eddda2cba7b0e227a4cf08786e4fb6c57bd2d6e349f26735b739ebf7954623

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "ae391a5d7412d631155f483c10ae75e171ab291806f4a6cfabec847d05233af7",
    "cross_cats_sorted": [
      "cs.LO",
      "math.CO"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.FL",
    "submitted_at": "2019-05-03T01:19:52Z",
    "title_canon_sha256": "bf1fb27377943d320ef12a17ba7b08e54ada765d01fb5d26eeb05731e6fad277"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1905.05801",
    "kind": "arxiv",
    "version": 1
  }
}