Pith Number

pith:MJDDYXQS

pith:2013:MJDDYXQS6XFUGVFXMYRY3NXPDC

not attested not anchored not stored refs pending

Discriminators of quadratic polynomials

Soohyun Park

arxiv:1308.3754 v1 · 2013-08-17 · 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{MJDDYXQS6XFUGVFXMYRY3NXPDC}

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	2026-05-18T03:15:42.650127Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

62463c5e12f5cb4354b766238db6ef18900b715fa6b172e17454dfe06e2ede0c

Aliases

arxiv: 1308.3754 · arxiv_version: 1308.3754v1 · doi: 10.48550/arxiv.1308.3754 · pith_short_12: MJDDYXQS6XFU · pith_short_16: MJDDYXQS6XFUGVFX · pith_short_8: MJDDYXQS

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/MJDDYXQS6XFUGVFXMYRY3NXPDC \
  | 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: 62463c5e12f5cb4354b766238db6ef18900b715fa6b172e17454dfe06e2ede0c

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "8ae03962aea9c9de549da8da2b7760ba9cfbd0623f47b7366f746d83c5f869de",
    "cross_cats_sorted": [],
    "license": "http://creativecommons.org/licenses/by/3.0/",
    "primary_cat": "math.NT",
    "submitted_at": "2013-08-17T05:11:28Z",
    "title_canon_sha256": "c03b7d9b89abb10d81f66d6b551f36b96ce320b8db9c01bba48e93601b2194b8"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1308.3754",
    "kind": "arxiv",
    "version": 1
  }
}