Pith Number

pith:ZLLGEYTR

pith:2021:ZLLGEYTRWXYMPQEGEIUHYQS3P5

not attested not anchored not stored refs pending

Representation of incomplete contact problems by half-planes

David A. Hills, Hendrik Andresen, Matthew R. Moore

arxiv:2103.15802 v1 · 2021-03-26 · physics.class-ph · physics.app-ph

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{ZLLGEYTRWXYMPQEGEIUHYQS3P5}

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	2026-07-05T02:27:09.896600Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

cad6626271b5f0c7c08622287c425b7f763e4451c9c9b2f28fef24a84846a031

Aliases

arxiv: 2103.15802 · arxiv_version: 2103.15802v1 · doi: 10.48550/arxiv.2103.15802 · pith_short_12: ZLLGEYTRWXYM · pith_short_16: ZLLGEYTRWXYMPQEG · pith_short_8: ZLLGEYTR

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/ZLLGEYTRWXYMPQEGEIUHYQS3P5 \
  | 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: cad6626271b5f0c7c08622287c425b7f763e4451c9c9b2f28fef24a84846a031

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "a2233d8c50594dda072a367d602ed3f5c5560b19d43f77b8717caf079d7a81f6",
    "cross_cats_sorted": [
      "physics.app-ph"
    ],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "physics.class-ph",
    "submitted_at": "2021-03-26T15:58:52Z",
    "title_canon_sha256": "06b7ba3b2d163ac05d8cc1e7fa08fbc34eebe9483f7a91d61c4554fa2029a8a4"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2103.15802",
    "kind": "arxiv",
    "version": 1
  }
}