Pith Number

pith:QXK2VBET

pith:2017:QXK2VBETVRKV4H5LBERHEMG4RW

not attested not anchored not stored refs pending

A Taxonomy of Morphic Sequences

Jean-Paul Allouche, Jeffrey Shallit, Julien Cassaigne, Luca Q. Zamboni

arxiv:1711.10807 v1 · 2017-11-29 · cs.FL

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{QXK2VBETVRKV4H5LBERHEMG4RW}

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.

Cited by

1 paper in Pith

Pointwise order of generalized Hofstadter functions G, H and beyond

Receipt and verification

First computed	2026-05-18T00:29:16.885580Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

85d5aa8493ac555e1fab09227230dc8da31ed54f713b2296486b8a18d828a9a6

Aliases

arxiv: 1711.10807 · arxiv_version: 1711.10807v1 · doi: 10.48550/arxiv.1711.10807 · pith_short_12: QXK2VBETVRKV · pith_short_16: QXK2VBETVRKV4H5L · pith_short_8: QXK2VBET

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/QXK2VBETVRKV4H5LBERHEMG4RW \
  | 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: 85d5aa8493ac555e1fab09227230dc8da31ed54f713b2296486b8a18d828a9a6

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "2dd596c70d396700e28484a4464bb7bcb23fe26437c2b30c806de4d62fd16779",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.FL",
    "submitted_at": "2017-11-29T12:17:01Z",
    "title_canon_sha256": "3ac23fdecc736eb9a242fd6a189446c13299a7b61351683e88f461ac717dae57"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1711.10807",
    "kind": "arxiv",
    "version": 1
  }
}