Pith Number

pith:Q7GRLA7O

pith:2014:Q7GRLA7OYP6HRPZD5UVB7LEIQ6

not attested not anchored not stored refs pending

Rough metrics on manifolds and quadratic estimates

Lashi Bandara

arxiv:1402.2030 v3 · 2014-02-10 · math.AP · math.FA

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{Q7GRLA7OYP6HRPZD5UVB7LEIQ6}

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	2026-05-17T23:41:37.702448Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

87cd1583eec3fc78bf23ed2a1fac88879f31d56138013f8f6f3c70464e403e89

Aliases

arxiv: 1402.2030 · arxiv_version: 1402.2030v3 · doi: 10.48550/arxiv.1402.2030 · pith_short_12: Q7GRLA7OYP6H · pith_short_16: Q7GRLA7OYP6HRPZD · pith_short_8: Q7GRLA7O

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/Q7GRLA7OYP6HRPZD5UVB7LEIQ6 \
  | 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: 87cd1583eec3fc78bf23ed2a1fac88879f31d56138013f8f6f3c70464e403e89

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "7a4787da6be4d82c6f42aa667281c34df9cf14faa6c962e3f55b052ba91caff9",
    "cross_cats_sorted": [
      "math.FA"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.AP",
    "submitted_at": "2014-02-10T03:57:26Z",
    "title_canon_sha256": "3a14d61d7481449f4f0ce9b375aea3b7691fa2ba56fb6304cbb9b43f9eae40ec"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1402.2030",
    "kind": "arxiv",
    "version": 3
  }
}