Pith Number

pith:O5WJHWWP

pith:2019:O5WJHWWPQXQFIIZPBN3WBZB3BZ

not attested not anchored not stored refs pending

Quantum magnetic imaging of iron biomineralisation in teeth of the chiton Acanthopleura hirtosa

David A. Simpson, David Kisailus, Jean-Philippe Tetienne, Jeremy A. Shaw, Julia M. McCoey, Liam T. Hall, Lloyd C.L. Hollenberg, Mirai Matsuoka, Robert W. de Gille

arxiv:1902.09637 v2 · 2019-02-14 · physics.bio-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{O5WJHWWPQXQFIIZPBN3WBZB3BZ}

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	2026-05-17T23:52:26.624406Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

776c93dacf85e054232f0b7760e43b0e73f93b97f3bdf2ca391449ab5aa5a6e0

Aliases

arxiv: 1902.09637 · arxiv_version: 1902.09637v2 · doi: 10.48550/arxiv.1902.09637 · pith_short_12: O5WJHWWPQXQF · pith_short_16: O5WJHWWPQXQFIIZP · pith_short_8: O5WJHWWP

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/O5WJHWWPQXQFIIZPBN3WBZB3BZ \
  | 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: 776c93dacf85e054232f0b7760e43b0e73f93b97f3bdf2ca391449ab5aa5a6e0

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "4db0d444e7aa0e5f71081f9566136f3da866dff005ff5c436dc7c77e33a2e5ff",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "physics.bio-ph",
    "submitted_at": "2019-02-14T05:42:37Z",
    "title_canon_sha256": "d25d534ea3a1817875ef1424963779430d887a73f0c3759836a822861022b765"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1902.09637",
    "kind": "arxiv",
    "version": 2
  }
}