Pith Number

pith:4IEXSEDY

pith:2015:4IEXSEDYHS6JDVWLEFSRTWYUEM

not attested not anchored not stored refs pending

Symmetric moment problems and a conjecture of Valent

Christian Berg, Ryszard Szwarc

arxiv:1509.06540 v2 · 2015-09-22 · math.CA

Open paper page JSON Open Graph Bundle Merged state Verified badge What is a Pith Number?

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{4IEXSEDYHS6JDVWLEFSRTWYUEM}

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	2026-05-18T00:52:02.291782Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

e2097910783cbc91d6cb216519db142324743ba4cc42ea5d3464ed6f01ce9e60

Aliases

arxiv: 1509.06540 · arxiv_version: 1509.06540v2 · doi: 10.48550/arxiv.1509.06540 · pith_short_12: 4IEXSEDYHS6J · pith_short_16: 4IEXSEDYHS6JDVWL · pith_short_8: 4IEXSEDY

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/4IEXSEDYHS6JDVWLEFSRTWYUEM \
  | 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: e2097910783cbc91d6cb216519db142324743ba4cc42ea5d3464ed6f01ce9e60

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "e9e134dc833f8f2f1bc1050440f5ff0c957fd63a5646e3a75258225465f7beb3",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.CA",
    "submitted_at": "2015-09-22T10:21:55Z",
    "title_canon_sha256": "ba41dc7f596222c0d55354c160e1498f1f6fda633ea9f4b93350248a94dacfd1"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1509.06540",
    "kind": "arxiv",
    "version": 2
  }
}