Pith Number

pith:FLHIOTHP

pith:2015:FLHIOTHPNJRLYUWA36WNUPB3UM

not attested not anchored not stored refs pending

Primes values of $a^2 + p^4$

D.R. Heath-Brown, Xiannan Li

arxiv:1504.00531 v3 · 2015-04-02 · 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{FLHIOTHPNJRLYUWA36WNUPB3UM}

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	2026-05-18T01:26:10.419118Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

2ace874cef6a62bc52c0dfacda3c3ba32ef1bd213f4a7d065987d64e70c0efb1

Aliases

arxiv: 1504.00531 · arxiv_version: 1504.00531v3 · doi: 10.48550/arxiv.1504.00531 · pith_short_12: FLHIOTHPNJRL · pith_short_16: FLHIOTHPNJRLYUWA · pith_short_8: FLHIOTHP

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/FLHIOTHPNJRLYUWA36WNUPB3UM \
  | 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: 2ace874cef6a62bc52c0dfacda3c3ba32ef1bd213f4a7d065987d64e70c0efb1

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "fd1d0a1000d85b730a80496b4de61cebbdcbba14a7cf0eeee7ea908085b38670",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.NT",
    "submitted_at": "2015-04-02T12:57:58Z",
    "title_canon_sha256": "01b724ddd1c106834365b78b25ec7acf77122fb67103ab5bca1aed2cb75069c9"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1504.00531",
    "kind": "arxiv",
    "version": 3
  }
}