Pith Number

pith:K7GVMGFY

pith:2010:K7GVMGFYRQJUE6KCE5K67I2Z6G

not attested not anchored not stored refs pending

Secondary structure of Ac-Ala$_n$-LysH$^+$ polyalanine peptides ($n$=5,10,15) in vacuo: Helical or not?

F. Bierau, G. Meijer, G. von Helden, K. Pagel, M. Rossi, M. Scheffler, P. Kupser, V. Blum

arxiv:1005.1228 v1 · 2010-05-07 · physics.bio-ph · physics.chem-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{K7GVMGFYRQJUE6KCE5K67I2Z6G}

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	2026-05-18T04:34:08.878275Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

57cd5618b88c134279422755efa359f187d7d2408fcecc39bb949a2ef5ea6228

Aliases

arxiv: 1005.1228 · arxiv_version: 1005.1228v1 · doi: 10.48550/arxiv.1005.1228 · pith_short_12: K7GVMGFYRQJU · pith_short_16: K7GVMGFYRQJUE6KC · pith_short_8: K7GVMGFY

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/K7GVMGFYRQJUE6KCE5K67I2Z6G \
  | 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: 57cd5618b88c134279422755efa359f187d7d2408fcecc39bb949a2ef5ea6228

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "080370fffa76bbfd18209b79dde60e41a1b995210d3c1cc0ad01ea52207143c3",
    "cross_cats_sorted": [
      "physics.chem-ph"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "physics.bio-ph",
    "submitted_at": "2010-05-07T15:23:32Z",
    "title_canon_sha256": "76424c5889870d0e383131a286517a70609373c18cfb9ef3da672770aa3374b4"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1005.1228",
    "kind": "arxiv",
    "version": 1
  }
}