Pith Number

pith:4W7EA3SA

pith:2015:4W7EA3SAX6LKLAYMUORHBTFAS4

not attested not anchored not stored refs pending

Measuring the Proton Selectivity of Graphene Membranes

Michael I. Walker, Philipp Braeuninger-Weimar, Robert S. Weatherup, Stephan Hofmann, Ulrich F. Keyser

arxiv:1508.06494 v1 · 2015-08-26 · cond-mat.mes-hall

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{4W7EA3SAX6LKLAYMUORHBTFAS4}

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	2026-05-18T01:24:52.928224Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

e5be406e40bf96a5830ca3a270cca097112cb7790136d3805d7fc2dc9d7ad004

Aliases

arxiv: 1508.06494 · arxiv_version: 1508.06494v1 · doi: 10.48550/arxiv.1508.06494 · pith_short_12: 4W7EA3SAX6LK · pith_short_16: 4W7EA3SAX6LKLAYM · pith_short_8: 4W7EA3SA

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/4W7EA3SAX6LKLAYMUORHBTFAS4 \
  | 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: e5be406e40bf96a5830ca3a270cca097112cb7790136d3805d7fc2dc9d7ad004

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "61496a3fb8c65a4ccb9ec9f3a7e7607da62e0fa5f6f5309c3155e9873555a2b2",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cond-mat.mes-hall",
    "submitted_at": "2015-08-26T13:52:52Z",
    "title_canon_sha256": "b93e00e6a61aab8fb8cef02706157b317f8ec16b304b6ca29c272347fa54f2e7"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1508.06494",
    "kind": "arxiv",
    "version": 1
  }
}