Pith Number

pith:NGNIVLXW

pith:2012:NGNIVLXW2KRSGDCJNNPUZZAHJ5

not attested not anchored not stored refs pending

A novel crystal polymorph of volborthite, Cu3V2O7(OH)2 2H2O

G{\o}ran J. Nilsen, Hajime Ishikawa, Hiroyuki Yoshida, Jun-ichi Yamaura, Yoshihiko Okamoto, Zenji Hiroi

arxiv:1209.3162 v1 · 2012-09-14 · 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{NGNIVLXW2KRSGDCJNNPUZZAHJ5}

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	2026-05-18T03:45:32.653221Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

699a8aaef6d2a3230c496b5f4ce4074f5859eca88faf772b227daa466e60c747

Aliases

arxiv: 1209.3162 · arxiv_version: 1209.3162v1 · doi: 10.48550/arxiv.1209.3162 · pith_short_12: NGNIVLXW2KRS · pith_short_16: NGNIVLXW2KRSGDCJ · pith_short_8: NGNIVLXW

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/NGNIVLXW2KRSGDCJNNPUZZAHJ5 \
  | 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: 699a8aaef6d2a3230c496b5f4ce4074f5859eca88faf772b227daa466e60c747

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "2d14407e528dec3284fc899a8f3d93249eed577feb331ba67e012299e2636024",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cond-mat.mtrl-sci",
    "submitted_at": "2012-09-14T11:51:54Z",
    "title_canon_sha256": "cb8bf1492ee42c791ce76eb3bed1c48dbdc37495d97d3151de242ddd87549533"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1209.3162",
    "kind": "arxiv",
    "version": 1
  }
}