Pith Number

pith:QB5KL3J6

pith:2016:QB5KL3J62JWJAVYGX4PMPM4VK7

not attested not anchored not stored refs pending

Newer sums of three cubes

Sander G. Huisman

arxiv:1604.07746 v1 · 2016-04-26 · 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{QB5KL3J62JWJAVYGX4PMPM4VK7}

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	2026-05-18T01:16:12.119394Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

807aa5ed3ed26c905706bf1ec7b39557fd0bdb65b4b8cb0dc3d70221e44cbd00

Aliases

arxiv: 1604.07746 · arxiv_version: 1604.07746v1 · doi: 10.48550/arxiv.1604.07746 · pith_short_12: QB5KL3J62JWJ · pith_short_16: QB5KL3J62JWJAVYG · pith_short_8: QB5KL3J6

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/QB5KL3J62JWJAVYGX4PMPM4VK7 \
  | 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: 807aa5ed3ed26c905706bf1ec7b39557fd0bdb65b4b8cb0dc3d70221e44cbd00

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "00179618b90601da63fb9d2fe468dc8ce94c2818f90a1f08b37d2330cb111dc3",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.NT",
    "submitted_at": "2016-04-26T16:30:38Z",
    "title_canon_sha256": "879dabf5500aad6df8365139c265a5840c179438f2b9af629da890f68616e5d0"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1604.07746",
    "kind": "arxiv",
    "version": 1
  }
}