Pith Number

pith:23ZEWY3S

pith:2008:23ZEWY3SB3VTVZVOUCZ6YMDXR2

not attested not anchored not stored refs pending

Automated and accurate protein structure description: Distribution of Ideal Secondary Structural Units in Natural Proteins

Dieter Cremer, Dmitry Izotov, Elfi Kraka, Sushilee Raganathan

arxiv:0811.3587 v2 · 2008-11-21 · q-bio.QM

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{23ZEWY3SB3VTVZVOUCZ6YMDXR2}

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	2026-07-04T15:16:18.681488Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

d6f24b63720eeb3ae6aea0b3ec30778e81034aa10d4614e487da201a99df42cf

Aliases

arxiv: 0811.3587 · arxiv_version: 0811.3587v2 · doi: 10.48550/arxiv.0811.3587 · pith_short_12: 23ZEWY3SB3VT · pith_short_16: 23ZEWY3SB3VTVZVO · pith_short_8: 23ZEWY3S

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/23ZEWY3SB3VTVZVOUCZ6YMDXR2 \
  | 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: d6f24b63720eeb3ae6aea0b3ec30778e81034aa10d4614e487da201a99df42cf

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "4e4b37ffbbda7c11c840803bffad43df071d058a1722e2e8d20a9734b7f6ce2c",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "q-bio.QM",
    "submitted_at": "2008-11-21T18:45:03Z",
    "title_canon_sha256": "d17fc41befa4256ebf5db7a80bd9aa143cfb95c0db16c4f669372b57d6dc376c"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0811.3587",
    "kind": "arxiv",
    "version": 2
  }
}