Pith Number

pith:3F2XFXXA

pith:2019:3F2XFXXA4UQK4ADQ7T3AMHBDTJ

not attested not anchored not stored refs pending

A commented translation of Hans Richter's early work "The isotropic law of elasticity"

Eva Schweickert, Kai Graban, Patrizio Neff, Robert J. Martin

arxiv:1904.05164 v1 · 2019-04-09 · math.HO · 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{3F2XFXXA4UQK4ADQ7T3AMHBDTJ}

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	2026-05-17T23:48:53.948712Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

d97572dee0e520ae0070fcf6061c239a660e360e12b845f56c7d1246f25b8d22

Aliases

arxiv: 1904.05164 · arxiv_version: 1904.05164v1 · doi: 10.48550/arxiv.1904.05164 · pith_short_12: 3F2XFXXA4UQK · pith_short_16: 3F2XFXXA4UQK4ADQ · pith_short_8: 3F2XFXXA

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/3F2XFXXA4UQK4ADQ7T3AMHBDTJ \
  | 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: d97572dee0e520ae0070fcf6061c239a660e360e12b845f56c7d1246f25b8d22

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "6c9e99f918bb3c30a96369b78dcdbb67ba8b887781713887ed69dbb4baf2ceff",
    "cross_cats_sorted": [
      "math.AP"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.HO",
    "submitted_at": "2019-04-09T15:50:00Z",
    "title_canon_sha256": "405b557dd66d7f488ab2f62cfea02f13ffda71ec546c84a027cd58a93cb52ef7"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1904.05164",
    "kind": "arxiv",
    "version": 1
  }
}