Pith Number

pith:OR273YFK

pith:2019:OR273YFKKFN4F3YAKC5LAIVHHI

not attested not anchored not stored refs pending

Toughening in a nacre-like soft-hard layered structure due to weak nonlinearity in the soft layer

Ko Okumura, Yuko Aoyanagi

arxiv:1904.08165 v1 · 2019-04-17 · physics.bio-ph · cond-mat.mtrl-sci · cond-mat.soft

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{OR273YFKKFN4F3YAKC5LAIVHHI}

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	2026-05-17T23:45:26.797803Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

7475fde0aa515bc2ef0050bab022a73a125071db01718eee53dd92a7f23b2293

Aliases

arxiv: 1904.08165 · arxiv_version: 1904.08165v1 · doi: 10.48550/arxiv.1904.08165 · pith_short_12: OR273YFKKFN4 · pith_short_16: OR273YFKKFN4F3YA · pith_short_8: OR273YFK

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/OR273YFKKFN4F3YAKC5LAIVHHI \
  | 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: 7475fde0aa515bc2ef0050bab022a73a125071db01718eee53dd92a7f23b2293

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "662988a71109d17d879b57477cf2d3612d2e0b287eaca9072accf6a91947ec3c",
    "cross_cats_sorted": [
      "cond-mat.mtrl-sci",
      "cond-mat.soft"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "physics.bio-ph",
    "submitted_at": "2019-04-17T10:22:24Z",
    "title_canon_sha256": "93ccecd8f0a48e3de1b4d2abf94d5d740b8ac3f711704015e092f7f3dcb17324"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1904.08165",
    "kind": "arxiv",
    "version": 1
  }
}