Pith Number

pith:NZDCLY2L

pith:2017:NZDCLY2LECK3VQQOZDSTCTMHG7

not attested not anchored not stored refs pending

Sylvester's Problem and Mock Heegner Points

John Voight, Samit Dasgupta

arxiv:1707.05874 v1 · 2017-07-18 · 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{NZDCLY2LECK3VQQOZDSTCTMHG7}

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	2026-05-18T00:39:59.091686Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

6e4625e34b2095bac20ec8e5314d8737f9e9df8d6200b3c70dcd52ae8d9541a0

Aliases

arxiv: 1707.05874 · arxiv_version: 1707.05874v1 · doi: 10.48550/arxiv.1707.05874 · pith_short_12: NZDCLY2LECK3 · pith_short_16: NZDCLY2LECK3VQQO · pith_short_8: NZDCLY2L

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/NZDCLY2LECK3VQQOZDSTCTMHG7 \
  | 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: 6e4625e34b2095bac20ec8e5314d8737f9e9df8d6200b3c70dcd52ae8d9541a0

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "6e441b1b41e9a5b753fed48c1dc0f7928311f9b135e873f4083a1670d43c1737",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.NT",
    "submitted_at": "2017-07-18T21:52:20Z",
    "title_canon_sha256": "247e7362d179221dbf6698bfa0a104e00d2d29b4d67e284640b5a7ea09dc4221"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1707.05874",
    "kind": "arxiv",
    "version": 1
  }
}