Pith Number

pith:QFTIHHA7

pith:2025:QFTIHHA7KB55UFLJZ3P6PUL4D4

not attested not anchored not stored refs pending

Point evaluation for polynomials on the circle

Sarah May Instanes

arxiv:2509.22035 v2 · 2025-09-26 · math.CV

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{QFTIHHA7KB55UFLJZ3P6PUL4D4}

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	2026-05-18T02:45:12.318511Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

8166839c1f507bda1569cedfe7d17c1f3e6637b9690a654ace186b4378993cb5

Aliases

arxiv: 2509.22035 · arxiv_version: 2509.22035v2 · doi: 10.48550/arxiv.2509.22035 · pith_short_12: QFTIHHA7KB55 · pith_short_16: QFTIHHA7KB55UFLJ · pith_short_8: QFTIHHA7

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/QFTIHHA7KB55UFLJZ3P6PUL4D4 \
  | 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: 8166839c1f507bda1569cedfe7d17c1f3e6637b9690a654ace186b4378993cb5

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "f24cf47b27de79fa1ef421cf6c72482dea3b34a1b1497bb96f11dd550f4d789e",
    "cross_cats_sorted": [],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "math.CV",
    "submitted_at": "2025-09-26T08:12:55Z",
    "title_canon_sha256": "c55cffbe29d87534411bfefe2e54fd227025997fd425c31c2f21b358070d0083"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2509.22035",
    "kind": "arxiv",
    "version": 2
  }
}