Pith Number

pith:ORN7IKSH

pith:2005:ORN7IKSHVZH4C7NCR4VSVBH55S

not attested not anchored not stored refs pending

A Hydrophobic Gate in an Ion Channel: The Closed State of the Nicotinic Acetylcholine Receptor

Mark S. P. Sansom, Oliver Beckstein

arxiv:q-bio/0509018 v2 · 2005-09-15 · q-bio.BM · q-bio.SC

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{ORN7IKSHVZH4C7NCR4VSVBH55S}

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	2026-05-17T23:41:57.210243Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

745bf42a47ae4fc17da28f2b2a84fdec8f25e203d39f453974c337d77428439d

Aliases

arxiv: q-bio/0509018 · arxiv_version: q-bio/0509018v2 · doi: 10.48550/arxiv.q-bio/0509018 · pith_short_12: ORN7IKSHVZH4 · pith_short_16: ORN7IKSHVZH4C7NC · pith_short_8: ORN7IKSH

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/ORN7IKSHVZH4C7NCR4VSVBH55S \
  | 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: 745bf42a47ae4fc17da28f2b2a84fdec8f25e203d39f453974c337d77428439d

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "52bfb5b3082a5a1ac5fbe752edcff1817459bffaa4c1472393876cb129837ef8",
    "cross_cats_sorted": [
      "q-bio.SC"
    ],
    "license": "",
    "primary_cat": "q-bio.BM",
    "submitted_at": "2005-09-15T00:17:46Z",
    "title_canon_sha256": "6070492261b7ee7982184dad91fe5fee1633aa76939e57f4cab19da7329c8dc2"
  },
  "schema_version": "1.0",
  "source": {
    "id": "q-bio/0509018",
    "kind": "arxiv",
    "version": 2
  }
}