Pith Number

pith:UMQXUR2T

pith:2012:UMQXUR2TOY32UAMPQKBFSEQMDC

not attested not anchored not stored refs pending

Permeability of phospholipid membrane for small polar molecules determined from osmotic swelling of giant phospholipid vesicles

Emir Haleva, Haim Diamant, Primoz Peterlin, Vesna Arrigler

arxiv:1205.4268 v1 · 2012-05-18 · physics.bio-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{UMQXUR2TOY32UAMPQKBFSEQMDC}

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	2026-05-18T03:48:46.329767Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

a3217a47537637aa018f828259120c18af8ffd805c656044d18565515c29eb91

Aliases

arxiv: 1205.4268 · arxiv_version: 1205.4268v1 · doi: 10.48550/arxiv.1205.4268 · pith_short_12: UMQXUR2TOY32 · pith_short_16: UMQXUR2TOY32UAMP · pith_short_8: UMQXUR2T

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/UMQXUR2TOY32UAMPQKBFSEQMDC \
  | 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: a3217a47537637aa018f828259120c18af8ffd805c656044d18565515c29eb91

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "b74646fe68c540e609955247594d8d98d0088b19dff5ad8732e6633067ef317d",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "physics.bio-ph",
    "submitted_at": "2012-05-18T21:21:58Z",
    "title_canon_sha256": "06c2a84cc4a5c381da8fc16d37d402fae48b53e1c432f1d15027937dfd18707d"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1205.4268",
    "kind": "arxiv",
    "version": 1
  }
}