Pith Number

pith:L4N3VIHC

pith:2017:L4N3VIHCGI75USVS6IMROZPWWV

not attested not anchored not stored refs pending

Weak approximation results for quadratic forms in four variables

Sofia Lindqvist

arxiv:1704.00502 v1 · 2017-04-03 · 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{L4N3VIHCGI75USVS6IMROZPWWV}

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	2026-05-18T00:47:22.168361Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

5f1bbaa0e2323fda4ab2f2191765f6b57caecd042a5bc314496e895ee403ff09

Aliases

arxiv: 1704.00502 · arxiv_version: 1704.00502v1 · doi: 10.48550/arxiv.1704.00502 · pith_short_12: L4N3VIHCGI75 · pith_short_16: L4N3VIHCGI75USVS · pith_short_8: L4N3VIHC

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/L4N3VIHCGI75USVS6IMROZPWWV \
  | 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: 5f1bbaa0e2323fda4ab2f2191765f6b57caecd042a5bc314496e895ee403ff09

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "2a336ffc68d6f8d5f15b24009a81b719aa4271e6a01c8469250835a30ed1d208",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.NT",
    "submitted_at": "2017-04-03T09:52:17Z",
    "title_canon_sha256": "f929fa0e82d49c992976787de08134efb98e073c50ce11b5ed7039cf0d0208fb"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1704.00502",
    "kind": "arxiv",
    "version": 1
  }
}