Pith Number

pith:3YAP6ZH5

pith:2019:3YAP6ZH5JOXPDZ2FFK6UOPW3SV

not attested not anchored not stored refs pending

2DMatPedia: An open computational database of two-dimensional materials from top-down and bottom-up approaches

Jun Zhou, Kristin A. Persson, Lei Shen, Miguel Dias Costa, Patrick Huck, Shyue Ping Ong, Xiaoyang Ma, Yuan Ping Feng, Yunhao Lu

arxiv:1901.09487 v1 · 2019-01-28 · 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{3YAP6ZH5JOXPDZ2FFK6UOPW3SV}

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	2026-07-04T23:52:27.506817Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

de00ff64fd4baef1e7452abd473edb9572b9afb63277104f153470e46790220a

Aliases

arxiv: 1901.09487 · arxiv_version: 1901.09487v1 · doi: 10.48550/arxiv.1901.09487 · pith_short_12: 3YAP6ZH5JOXP · pith_short_16: 3YAP6ZH5JOXPDZ2F · pith_short_8: 3YAP6ZH5

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/3YAP6ZH5JOXPDZ2FFK6UOPW3SV \
  | 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: de00ff64fd4baef1e7452abd473edb9572b9afb63277104f153470e46790220a

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "5a29ae39a524ba384040de74c5cf032d39477a6897cd552714bd1c5d5ae546f0",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cond-mat.mtrl-sci",
    "submitted_at": "2019-01-28T02:33:36Z",
    "title_canon_sha256": "014fcb21b11960a67133b51eecfb322e4104a2fe437713d1e67e61a2a6e83b7d"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1901.09487",
    "kind": "arxiv",
    "version": 1
  }
}