Pith Number

pith:5QPWYFUJ

pith:2020:5QPWYFUJWDWJLGFSHS3MI5RGMX

not attested not anchored not stored refs pending

Evolutionary Algorithm Guided Voxel-Encoding Printing of Functional Hard-Magnetic Soft Active Materials

Craig M. Hamel, H. Jerry Qi, Ruike Zhao, Shuai Wu

arxiv:2001.11189 v1 · 2020-01-30 · 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{5QPWYFUJWDWJLGFSHS3MI5RGMX}

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	2026-07-05T00:37:21.498434Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

ec1f6c1689b0ec9598b23cb6c4762665de3a3f9917146702c3e2d782459bb9ad

Aliases

arxiv: 2001.11189 · arxiv_version: 2001.11189v1 · doi: 10.48550/arxiv.2001.11189 · pith_short_12: 5QPWYFUJWDWJ · pith_short_16: 5QPWYFUJWDWJLGFS · pith_short_8: 5QPWYFUJ

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/5QPWYFUJWDWJLGFSHS3MI5RGMX \
  | 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: ec1f6c1689b0ec9598b23cb6c4762665de3a3f9917146702c3e2d782459bb9ad

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "14918eed858fe45130808aec7131a546f3e9a64835ac2b8e974437b75067bb93",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "physics.app-ph",
    "submitted_at": "2020-01-30T06:26:13Z",
    "title_canon_sha256": "a1ccb6e0ba320f9b92cd6a13bc433bda65dbbbe1e822186e2668dac5b918d690"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2001.11189",
    "kind": "arxiv",
    "version": 1
  }
}