Pith Number

pith:6KM3CBQ4

pith:2017:6KM3CBQ4CMQ2DUKR224MNJUQBZ

not attested not anchored not stored refs pending

Is the quartic Diophantine equation $A^4+hB^4=C^4+hD^4$ solvable for any integer $h$?

Farzali Izadi, Mehdi Baghalagdam

arxiv:1701.02602 v3 · 2017-01-06 · 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{6KM3CBQ4CMQ2DUKR224MNJUQBZ}

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.

Cited by

1 paper in Pith

Multiple and Complete New Important Conjectures on Perfect Cuboid and Euler Brick

Receipt and verification

First computed	2026-05-18T00:50:13.418896Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

f299b1061c1321a1d151d6b8c6a6900e768da07b52901d04353519ae5c96bf2d

Aliases

arxiv: 1701.02602 · arxiv_version: 1701.02602v3 · doi: 10.48550/arxiv.1701.02602 · pith_short_12: 6KM3CBQ4CMQ2 · pith_short_16: 6KM3CBQ4CMQ2DUKR · pith_short_8: 6KM3CBQ4

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/6KM3CBQ4CMQ2DUKR224MNJUQBZ \
  | 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: f299b1061c1321a1d151d6b8c6a6900e768da07b52901d04353519ae5c96bf2d

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "d619646e8522f1b8710875a59cd5355cc65da615aba43cee81ac21fa6b6e41a4",
    "cross_cats_sorted": [],
    "license": "http://creativecommons.org/licenses/by-nc-sa/4.0/",
    "primary_cat": "math.NT",
    "submitted_at": "2017-01-06T18:25:16Z",
    "title_canon_sha256": "e1511cd1c6038b4744a56a1adec131c09488ce377ed78c84ac8078078bd682da"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1701.02602",
    "kind": "arxiv",
    "version": 3
  }
}