Pith Number

pith:Q72ZYBUM

pith:2017:Q72ZYBUMLVCYVT277MXOK3OJ7N

not attested not anchored not stored refs pending

On finding a cavity in a thermoelastic body using a single displacement measurement over a finite time interval on the surface of the body

Masaru Ikehata

arxiv:1706.02453 v4 · 2017-06-08 · 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{Q72ZYBUMLVCYVT277MXOK3OJ7N}

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	2026-05-18T00:14:56.958497Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

87f59c068c5d458acf5ffb2ee56dc9fb522f49cedf50ef009ccd9abf834e362f

Aliases

arxiv: 1706.02453 · arxiv_version: 1706.02453v4 · doi: 10.48550/arxiv.1706.02453 · pith_short_12: Q72ZYBUMLVCY · pith_short_16: Q72ZYBUMLVCYVT27 · pith_short_8: Q72ZYBUM

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/Q72ZYBUMLVCYVT277MXOK3OJ7N \
  | 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: 87f59c068c5d458acf5ffb2ee56dc9fb522f49cedf50ef009ccd9abf834e362f

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "b5400487defacc338fd4d941258c02942694f2cdb1575a11b383417af08c17e7",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.AP",
    "submitted_at": "2017-06-08T05:33:11Z",
    "title_canon_sha256": "a48ac48f6f9528ffab74bdfbe43354080550cba5ca572289756ec290047a662c"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1706.02453",
    "kind": "arxiv",
    "version": 4
  }
}