Pith Number

pith:W3O7YBEE

pith:2013:W3O7YBEEWUB7NRJSPI6EFZVQR5

not attested not anchored not stored refs pending

Protein structure validation and refinement using amide proton chemical shifts derived from quantum mechanics

Anders S. Christensen, Jan H. Jensen, Kresten Lindorff-Larsen, Mikael Borg, Thomas Hamelryck, Troels E. Linnet, Wouter Boomsma

arxiv:1305.2164 v2 · 2013-05-09 · physics.chem-ph · physics.bio-ph · q-bio.BM

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{W3O7YBEEWUB7NRJSPI6EFZVQR5}

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	2026-05-18T02:57:14.808636Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

b6ddfc0484b503f6c5327a3c42e6b08f5ccf6920974fa64709cf757e598b2c0d

Aliases

arxiv: 1305.2164 · arxiv_version: 1305.2164v2 · doi: 10.48550/arxiv.1305.2164 · pith_short_12: W3O7YBEEWUB7 · pith_short_16: W3O7YBEEWUB7NRJS · pith_short_8: W3O7YBEE

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/W3O7YBEEWUB7NRJSPI6EFZVQR5 \
  | 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: b6ddfc0484b503f6c5327a3c42e6b08f5ccf6920974fa64709cf757e598b2c0d

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "3035b628da9f0c5e74fb03173776fa283ddecd1cf92b820ad3834f5d2330112e",
    "cross_cats_sorted": [
      "physics.bio-ph",
      "q-bio.BM"
    ],
    "license": "http://creativecommons.org/licenses/by/3.0/",
    "primary_cat": "physics.chem-ph",
    "submitted_at": "2013-05-09T18:01:08Z",
    "title_canon_sha256": "b4b633f7393d3ef3d6f8c9c0d41a0fd8d16cf7c5f335ef8e14df4d690426dcc5"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1305.2164",
    "kind": "arxiv",
    "version": 2
  }
}