Pith Number

pith:VLDAYA2Z

pith:2020:VLDAYA2ZKD6QG4VHF2ND5VI435

not attested not anchored not stored refs pending

r2SCAN-D4: Dispersion corrected meta-generalized gradient approximation for general chemical applications

Aaron D. Kaplan, James W. Furness, Jan Gerit Brandenburg, Jianwei Sun, Jinliang Ning, John P. Perdew, Sebastian Ehlert, Uwe Huniar

arxiv:2012.09249 v1 · 2020-12-16 · physics.chem-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{VLDAYA2ZKD6QG4VHF2ND5VI435}

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	2026-07-05T02:14:13.123507Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

aac60c035950fd0372a72e9a3ed51cdf49323ac7160efd1412c5b0919b95bfb2

Aliases

arxiv: 2012.09249 · arxiv_version: 2012.09249v1 · doi: 10.48550/arxiv.2012.09249 · pith_short_12: VLDAYA2ZKD6Q · pith_short_16: VLDAYA2ZKD6QG4VH · pith_short_8: VLDAYA2Z

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/VLDAYA2ZKD6QG4VHF2ND5VI435 \
  | 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: aac60c035950fd0372a72e9a3ed51cdf49323ac7160efd1412c5b0919b95bfb2

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "fa1c83a39d663e0ef6bd70ab64f6213fd770760e78c8c742f88cf1acf8b25092",
    "cross_cats_sorted": [],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "physics.chem-ph",
    "submitted_at": "2020-12-16T20:33:59Z",
    "title_canon_sha256": "0feace537e66e592ac91102cb3606a45f1e5b95d10d3c1f18833a93a58fc238b"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2012.09249",
    "kind": "arxiv",
    "version": 1
  }
}