pith. sign in
Pith Number

pith:2CCHZZWW

pith:2019:2CCHZZWWPWS2L2NQZW47HT5AKO
not attested not anchored not stored refs pending

Period polynomials for Picard modular forms

Sheldon Joyner

arxiv:1907.04852 v2 · 2019-07-10 · math.NT

Add to your LaTeX paper
\usepackage{pith}
\pithnumber{2CCHZZWWPWS2L2NQZW47HT5AKO}

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 2026-05-17T23:40:54.786159Z
Builder pith-number-builder-2026-05-17-v1
Signature Pith Ed25519 (pith-v1-2026-05) · public key
Schema pith-number/v1.0

Canonical hash

d0847ce6d67da5a5e9b0cdb9f3cfa053b3608d0f807507b481a669925d1afc6d

Aliases

arxiv: 1907.04852 · arxiv_version: 1907.04852v2 · doi: 10.48550/arxiv.1907.04852 · pith_short_12: 2CCHZZWWPWS2 · pith_short_16: 2CCHZZWWPWS2L2NQ · pith_short_8: 2CCHZZWW
Agent API
Verify this Pith Number yourself
curl -sH 'Accept: application/ld+json' https://pith.science/pith/2CCHZZWWPWS2L2NQZW47HT5AKO \
  | 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: d0847ce6d67da5a5e9b0cdb9f3cfa053b3608d0f807507b481a669925d1afc6d
Canonical record JSON
{
  "metadata": {
    "abstract_canon_sha256": "f2ff86d28fd4272a68b8f17983664bea9847f1e93ef5a398e407de03d5e64b58",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.NT",
    "submitted_at": "2019-07-10T17:58:55Z",
    "title_canon_sha256": "ddbdee2ea2d93c89f873bf9dc20ae9276a6bdbf91e9825588031fc28bec42865"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1907.04852",
    "kind": "arxiv",
    "version": 2
  }
}