Pith Number

pith:CKIBDK5F

pith:2016:CKIBDK5FMCUB5HSF62YCEQU252

not attested not anchored not stored refs pending

Remark on a nonlocal isoperimetric problem

Vesa Julin

arxiv:1610.04449 v1 · 2016-10-14 · math.AP

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{CKIBDK5FMCUB5HSF62YCEQU252}

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	2026-05-18T01:02:15.161876Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

129011aba560a81e9e45f6b022429aeebb140ed105c61e4718031800a7268a7b

Aliases

arxiv: 1610.04449 · arxiv_version: 1610.04449v1 · doi: 10.48550/arxiv.1610.04449 · pith_short_12: CKIBDK5FMCUB · pith_short_16: CKIBDK5FMCUB5HSF · pith_short_8: CKIBDK5F

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/CKIBDK5FMCUB5HSF62YCEQU252 \
  | 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: 129011aba560a81e9e45f6b022429aeebb140ed105c61e4718031800a7268a7b

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "98d7fcd2af23c261358e53ee63be9a1e8de79ece72545af580a7602f678fb0c5",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.AP",
    "submitted_at": "2016-10-14T13:21:26Z",
    "title_canon_sha256": "afc42e236e0b6ae06a205d30eca2a357c1075152591647e6089479e505bc5aa8"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1610.04449",
    "kind": "arxiv",
    "version": 1
  }
}