Pith Number

pith:ONXV67FB

pith:2021:ONXV67FBABHP35YZSGZTN2NZGC

not attested not anchored not stored refs pending

Porous block copolymer separation membranes for 21st century sanitation and hygiene

Leiming Guo, Martin Steinhart, Yong Wang

arxiv:2109.00985 v1 · 2021-09-02 · cond-mat.mtrl-sci

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{ONXV67FBABHP35YZSGZTN2NZGC}

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	2026-07-05T03:11:00.354261Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

736f5f7ca1004efdf71991b336e9b9309e16438de7f52be65aaa07a0a1bbf98c

Aliases

arxiv: 2109.00985 · arxiv_version: 2109.00985v1 · doi: 10.48550/arxiv.2109.00985 · pith_short_12: ONXV67FBABHP · pith_short_16: ONXV67FBABHP35YZ · pith_short_8: ONXV67FB

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/ONXV67FBABHP35YZSGZTN2NZGC \
  | 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: 736f5f7ca1004efdf71991b336e9b9309e16438de7f52be65aaa07a0a1bbf98c

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "33ab0a9284049ff0ca5e1f3c0b0bca428a267e00e92f071adc155b4ce9ffb7dc",
    "cross_cats_sorted": [],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "cond-mat.mtrl-sci",
    "submitted_at": "2021-09-02T14:37:11Z",
    "title_canon_sha256": "e5f988e7fdce7d07da957503aff4c982509808b9ae3b1b74028815dae56a12bc"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2109.00985",
    "kind": "arxiv",
    "version": 1
  }
}