Pith Number

pith:B5WZKCBY

pith:2012:B5WZKCBYU6G7U3GEBHG3EEG627

not attested not anchored not stored refs pending

Some remarks on extrapolation with "flat" weights

Alexander Volberg, Nicholas Boros, Nikolaos Pattakos

arxiv:1204.3963 v1 · 2012-04-18 · 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{B5WZKCBYU6G7U3GEBHG3EEG627}

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	2026-05-18T03:57:38.170034Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

0f6d950838a78dfa6cc409cdb210ded7d75c461c3364db10b3bb721c26677400

Aliases

arxiv: 1204.3963 · arxiv_version: 1204.3963v1 · doi: 10.48550/arxiv.1204.3963 · pith_short_12: B5WZKCBYU6G7 · pith_short_16: B5WZKCBYU6G7U3GE · pith_short_8: B5WZKCBY

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/B5WZKCBYU6G7U3GEBHG3EEG627 \
  | 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: 0f6d950838a78dfa6cc409cdb210ded7d75c461c3364db10b3bb721c26677400

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "07888d10181378fb4922b0c0a0988f528682087a301c2dea1d91dd7afb14b4c4",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.CA",
    "submitted_at": "2012-04-18T02:52:34Z",
    "title_canon_sha256": "6b8895c24d86594afcf62eea58ba3cdc054f8f5023a03ad4c60cb40ddb3856f1"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1204.3963",
    "kind": "arxiv",
    "version": 1
  }
}