Pith Number

pith:6AH37WEN

pith:2017:6AH37WENKNBSK75LHXUX572II7

not attested not anchored not stored refs pending

Sums of Palindromes: an Approach via Automata

Aayush Rajasekaran, Jeffrey Shallit, Tim Smith

arxiv:1706.10206 v3 · 2017-06-30 · cs.FL · math.CO · math.NT

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{6AH37WENKNBSK75LHXUX572II7}

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	2026-05-18T00:36:19.093486Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

f00fbfd88d5343257fab3de97eff4847e96cf8cea6d1122fa7fe8b166b0492c8

Aliases

arxiv: 1706.10206 · arxiv_version: 1706.10206v3 · doi: 10.48550/arxiv.1706.10206 · pith_short_12: 6AH37WENKNBS · pith_short_16: 6AH37WENKNBSK75L · pith_short_8: 6AH37WEN

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/6AH37WENKNBSK75LHXUX572II7 \
  | 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: f00fbfd88d5343257fab3de97eff4847e96cf8cea6d1122fa7fe8b166b0492c8

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "108fe92211f61388ee8e0f134928c5532c271551a86a65d16dabd212f4c6df17",
    "cross_cats_sorted": [
      "math.CO",
      "math.NT"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.FL",
    "submitted_at": "2017-06-30T14:00:53Z",
    "title_canon_sha256": "f207ec501f05b8d456f7a9e588fe5f7d77a6fca3932864a8c4b1096c8e9b4aa3"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1706.10206",
    "kind": "arxiv",
    "version": 3
  }
}