Pith Number

pith:YKVCDFR2

pith:2018:YKVCDFR2FNEJPXWA4NIUSWXIDC

not attested not anchored not stored refs pending

Dimensionality of excitons in stacked van der Waals materials: The example of hexagonal boron nitride

Caterina Cocchi, Claudia Draxl, Dmitrii Nabok, Karim Rezouali, Mohamed Akli Belkhir, Wahib Aggoune

arxiv:1806.09324 v2 · 2018-06-25 · 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{YKVCDFR2FNEJPXWA4NIUSWXIDC}

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	2026-05-18T00:10:59.343575Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

c2aa21963a2b4897dec0e351495ae818b3f4366caab70585400a48e90377c943

Aliases

arxiv: 1806.09324 · arxiv_version: 1806.09324v2 · doi: 10.48550/arxiv.1806.09324 · pith_short_12: YKVCDFR2FNEJ · pith_short_16: YKVCDFR2FNEJPXWA · pith_short_8: YKVCDFR2

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/YKVCDFR2FNEJPXWA4NIUSWXIDC \
  | 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: c2aa21963a2b4897dec0e351495ae818b3f4366caab70585400a48e90377c943

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "529bcc866288d6d3e140023475d4c9ecfc29874333b4cc6dc3bc49df06db911a",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cond-mat.mtrl-sci",
    "submitted_at": "2018-06-25T08:33:15Z",
    "title_canon_sha256": "9c2f4355c5e65c444d7700b3b01312d9330edff50ae0eaf98c23a39d0a17d2f1"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1806.09324",
    "kind": "arxiv",
    "version": 2
  }
}