Pith Number

pith:B6YHHJPP

pith:2013:B6YHHJPPRB3EGXXP6JJHVJ66LS

not attested not anchored not stored refs pending

On Sloane's persistence problem

Charles Tresser, Edson de Faria

arxiv:1307.1188 v1 · 2013-07-04 · math.DS

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{B6YHHJPPRB3EGXXP6JJHVJ66LS}

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	2026-05-18T03:19:14.457304Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

0fb073a5ef8876435eeff2527aa7de5c9b87f3f9c9f4a909755603d95b990350

Aliases

arxiv: 1307.1188 · arxiv_version: 1307.1188v1 · doi: 10.48550/arxiv.1307.1188 · pith_short_12: B6YHHJPPRB3E · pith_short_16: B6YHHJPPRB3EGXXP · pith_short_8: B6YHHJPP

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/B6YHHJPPRB3EGXXP6JJHVJ66LS \
  | 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: 0fb073a5ef8876435eeff2527aa7de5c9b87f3f9c9f4a909755603d95b990350

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "e939a7600d87a8785e56c499c45a4cb3c148a5bd63976eeb69de6934a7e16e61",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.DS",
    "submitted_at": "2013-07-04T02:54:48Z",
    "title_canon_sha256": "4503f7cb0f056b08769fcb2d24c084bef74febe6d6c513d30c3d9560c78df641"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1307.1188",
    "kind": "arxiv",
    "version": 1
  }
}