Pith Number

pith:POJD2RJY

pith:2020:POJD2RJYZZJTMDDJBW22BSUB4M

not attested not anchored not stored refs pending

Limitations of Hartree-Fock with quantum resources

James Daniel Whitfield, Sahil Gulania

arxiv:2007.09806 v1 · 2020-07-19 · physics.comp-ph · physics.chem-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{POJD2RJYZZJTMDDJBW22BSUB4M}

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	2026-07-05T02:17:28.659930Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

7b923d4538ce53360c690db5a0ca81e337c359b857d00c5617219cb8c603b080

Aliases

arxiv: 2007.09806 · arxiv_version: 2007.09806v1 · doi: 10.48550/arxiv.2007.09806 · pith_short_12: POJD2RJYZZJT · pith_short_16: POJD2RJYZZJTMDDJ · pith_short_8: POJD2RJY

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/POJD2RJYZZJTMDDJBW22BSUB4M \
  | 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: 7b923d4538ce53360c690db5a0ca81e337c359b857d00c5617219cb8c603b080

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "8bffd9c64060a639d38099889dc6f4bd53cc39381262c3585f2d8d0423be6c44",
    "cross_cats_sorted": [
      "physics.chem-ph",
      "quant-ph"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "physics.comp-ph",
    "submitted_at": "2020-07-19T22:44:25Z",
    "title_canon_sha256": "92cac9ad1062cde81ef147d87c04b788fb1ebd5d84fa3aff3e75da0f19eb4774"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2007.09806",
    "kind": "arxiv",
    "version": 1
  }
}