Pith Number

pith:73IUHEBV

pith:2015:73IUHEBV5OPURGRFHWY6I3QBOW

not attested not anchored not stored refs pending

The avian tectorial membrane: Why is it tapered?

Anthony J. Ricci, Kuni H. Iwasa

arxiv:1510.00062 v1 · 2015-09-30 · 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{73IUHEBV5OPURGRFHWY6I3QBOW}

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	2026-05-18T01:22:18.400547Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

fed1439035eb9f489a253db1e46e0175912ec04b4797239da259c64920c967a7

Aliases

arxiv: 1510.00062 · arxiv_version: 1510.00062v1 · doi: 10.48550/arxiv.1510.00062 · pith_short_12: 73IUHEBV5OPU · pith_short_16: 73IUHEBV5OPURGRF · pith_short_8: 73IUHEBV

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/73IUHEBV5OPURGRFHWY6I3QBOW \
  | 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: fed1439035eb9f489a253db1e46e0175912ec04b4797239da259c64920c967a7

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "ca12c50e2c50942acd631c084ffbaebf6ac3b88356f3bf284caf158b3a61da2a",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "physics.bio-ph",
    "submitted_at": "2015-09-30T22:41:11Z",
    "title_canon_sha256": "07fb1b02fe311681bb86b4455ef179d4d2ffa0c2657f1b7b40e5ee0f689086e8"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1510.00062",
    "kind": "arxiv",
    "version": 1
  }
}