Pith Number

pith:VUAUBTX3

pith:2013:VUAUBTX3TSSEC7AOZSDOSJFTXZ

not attested not anchored not stored refs pending

On nonlinear interpolation

Peter Topalov, Thomas Kappeler

arxiv:1306.5721 v1 · 2013-06-24 · 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{VUAUBTX3TSSEC7AOZSDOSJFTXZ}

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	2026-05-18T03:20:07.159700Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

ad0140cefb9ca4417c0ecc86e924b3be58975ed0ebacd732453d8be5007ecb8d

Aliases

arxiv: 1306.5721 · arxiv_version: 1306.5721v1 · doi: 10.48550/arxiv.1306.5721 · pith_short_12: VUAUBTX3TSSE · pith_short_16: VUAUBTX3TSSEC7AO · pith_short_8: VUAUBTX3

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/VUAUBTX3TSSEC7AOZSDOSJFTXZ \
  | 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: ad0140cefb9ca4417c0ecc86e924b3be58975ed0ebacd732453d8be5007ecb8d

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "111d5523168788de817fce0e622a072ef2f7787cae94e0485a768dadb7dead89",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.FA",
    "submitted_at": "2013-06-24T19:40:25Z",
    "title_canon_sha256": "c3c025f029d711c9678c833736fad7cb7b0e54dc7c94c21457649a04e6e5c8be"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1306.5721",
    "kind": "arxiv",
    "version": 1
  }
}