Pith Number

pith:4NQEB45H

pith:2015:4NQEB45HE5NQMJHCKLMAQJXGC4

not attested not anchored not stored refs pending

Isotopic fractionation in proteins as a measure of hydrogen bond length

Bijyalaxmi Athokpam, Ross H. McKenzie, Sai Ramesh

arxiv:1504.04939 v2 · 2015-04-20 · physics.chem-ph · cond-mat.mtrl-sci · 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{4NQEB45HE5NQMJHCKLMAQJXGC4}

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	2026-05-18T01:35:43.376298Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

e36040f3a7275b0624e252d80826e61711fef355714ae9cba4518d1e1cc9efcd

Aliases

arxiv: 1504.04939 · arxiv_version: 1504.04939v2 · doi: 10.48550/arxiv.1504.04939 · pith_short_12: 4NQEB45HE5NQ · pith_short_16: 4NQEB45HE5NQMJHC · pith_short_8: 4NQEB45H

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/4NQEB45HE5NQMJHCKLMAQJXGC4 \
  | 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: e36040f3a7275b0624e252d80826e61711fef355714ae9cba4518d1e1cc9efcd

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "70ec50874d47d8f332f0e93f11c1fa8d77c0b1182cffa72d753954bf33b31b1d",
    "cross_cats_sorted": [
      "cond-mat.mtrl-sci",
      "q-bio.BM"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "physics.chem-ph",
    "submitted_at": "2015-04-20T05:24:17Z",
    "title_canon_sha256": "4b45b00b3913f0f3b82438fcfa6c1de623e062ee7e740f4c5daea4e1bcb5b699"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1504.04939",
    "kind": "arxiv",
    "version": 2
  }
}