Pith Number

pith:HGCBWQTC

pith:2021:HGCBWQTCJRS7HQW5NESETPMIV4

not attested not anchored not stored refs pending

Machine learning the derivative discontinuity of density-functional theory

Carlos L. Benavides-Riveros, Jack Wetherell, Johannes Gedeon, Jonathan Schmidt, Matthew J. P. Hodgson, Miguel A. L. Marques

arxiv:2106.16075 v1 · 2021-06-30 · physics.chem-ph · cond-mat.mtrl-sci · physics.comp-ph · quant-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{HGCBWQTCJRS7HQW5NESETPMIV4}

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	2026-07-05T10:20:08.749536Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

39841b42624c65f3c2dd692449bd88af2e9d24a4171b3bd1152a31e108b571d5

Aliases

arxiv: 2106.16075 · arxiv_version: 2106.16075v1 · doi: 10.48550/arxiv.2106.16075 · pith_short_12: HGCBWQTCJRS7 · pith_short_16: HGCBWQTCJRS7HQW5 · pith_short_8: HGCBWQTC

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/HGCBWQTCJRS7HQW5NESETPMIV4 \
  | 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: 39841b42624c65f3c2dd692449bd88af2e9d24a4171b3bd1152a31e108b571d5

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "5b40e5b15173d1ae11dadd8ec16d4135af20ee63f7aca7a55f9dffb3079ca3b5",
    "cross_cats_sorted": [
      "cond-mat.mtrl-sci",
      "physics.comp-ph",
      "quant-ph"
    ],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "physics.chem-ph",
    "submitted_at": "2021-06-30T14:05:23Z",
    "title_canon_sha256": "23ca3b481df6e9f411433d03d8a7d47bc12dfdddb2501fd5aa38572a0ec8ee70"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2106.16075",
    "kind": "arxiv",
    "version": 1
  }
}