Pith Number

pith:EEMUJ5KZ

pith:2015:EEMUJ5KZR3DWVEN5VKDZHZUQ3Y

not attested not anchored not stored refs pending

Multiple Landen values and the tribonacci numbers

David Broadhurst

arxiv:1504.05303 v2 · 2015-04-21 · hep-th · 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{EEMUJ5KZR3DWVEN5VKDZHZUQ3Y}

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	2026-05-18T02:17:54.017650Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

211944f5598ec76a91bdaa8793e690de3bb47ef2270cd94384c96e7b7d269e19

Aliases

arxiv: 1504.05303 · arxiv_version: 1504.05303v2 · doi: 10.48550/arxiv.1504.05303 · pith_short_12: EEMUJ5KZR3DW · pith_short_16: EEMUJ5KZR3DWVEN5 · pith_short_8: EEMUJ5KZ

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/EEMUJ5KZR3DWVEN5VKDZHZUQ3Y \
  | 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: 211944f5598ec76a91bdaa8793e690de3bb47ef2270cd94384c96e7b7d269e19

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "5f9b3804b714677afa55ee5c5718a5db82377416b31e49e09eef9eeb70516f15",
    "cross_cats_sorted": [
      "math.NT"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "hep-th",
    "submitted_at": "2015-04-21T04:47:34Z",
    "title_canon_sha256": "3979523a3beac1a320360bb7c5216bc9da9e45ce6f4cf9916c4f12f508091605"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1504.05303",
    "kind": "arxiv",
    "version": 2
  }
}