pith. sign in
Pith Number

pith:DPYUM2A6

pith:2018:DPYUM2A65EMEZNIL55LZX3ZOXO
not attested not anchored not stored refs pending

Normal numbers and nested perfect necklaces

Olivier Carton, Ver\'onica Becher

arxiv:1805.03713 v1 · 2018-05-09 · math.NT

Add to your LaTeX paper
\usepackage{pith}
\pithnumber{DPYUM2A65EMEZNIL55LZX3ZOXO}

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 2026-05-18T00:16:18.956549Z
Builder pith-number-builder-2026-05-17-v1
Signature Pith Ed25519 (pith-v1-2026-05) · public key
Schema pith-number/v1.0

Canonical hash

1bf146681ee9184cb50bef579bef2ebbb33c77c8c20f22b493c95e6f57921250

Aliases

arxiv: 1805.03713 · arxiv_version: 1805.03713v1 · doi: 10.48550/arxiv.1805.03713 · pith_short_12: DPYUM2A65EME · pith_short_16: DPYUM2A65EMEZNIL · pith_short_8: DPYUM2A6
Agent API
Verify this Pith Number yourself
curl -sH 'Accept: application/ld+json' https://pith.science/pith/DPYUM2A65EMEZNIL55LZX3ZOXO \
  | 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: 1bf146681ee9184cb50bef579bef2ebbb33c77c8c20f22b493c95e6f57921250
Canonical record JSON
{
  "metadata": {
    "abstract_canon_sha256": "c1401134cfbf0526556da94198f223f0bddaa7f0fc04e0eb5a5a4e4387552ac1",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.NT",
    "submitted_at": "2018-05-09T20:00:19Z",
    "title_canon_sha256": "bc54d489e352e42ddb573a6b95bc9f55ddda0314f1caf908b7da0af590aac975"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1805.03713",
    "kind": "arxiv",
    "version": 1
  }
}