Pith Number

pith:U6D7N7JC

pith:2025:U6D7N7JCHKQBFUHBSWALUOCWJU

not attested not anchored not stored refs pending

Anisotropic quadratic equations in three variables

Jiamin Li, Jianya Liu

arxiv:2501.15033 v2 · 2025-01-25 · 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{U6D7N7JCHKQBFUHBSWALUOCWJU}

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	2026-07-05T10:50:46.804175Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

a787f6fd223aa012d0e19580ba38564d3aa6f703cd161404d4365c9fa93cee5a

Aliases

arxiv: 2501.15033 · arxiv_version: 2501.15033v2 · doi: 10.48550/arxiv.2501.15033 · pith_short_12: U6D7N7JCHKQB · pith_short_16: U6D7N7JCHKQBFUHB · pith_short_8: U6D7N7JC

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/U6D7N7JCHKQBFUHBSWALUOCWJU \
  | 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: a787f6fd223aa012d0e19580ba38564d3aa6f703cd161404d4365c9fa93cee5a

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "4b9d4055a43983a77e7d4a1a5e60fda7038570a66eab58aa885e10d8d85a50f2",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.NT",
    "submitted_at": "2025-01-25T02:31:42Z",
    "title_canon_sha256": "24c5504ab7093bebc09475755724c060d51a8a0ce302da7a1abc8abbaecf66f8"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2501.15033",
    "kind": "arxiv",
    "version": 2
  }
}