Pith Number

pith:7ZIKKGVD

pith:2016:7ZIKKGVDJRFYIWJG3JSNY24HTD

not attested not anchored not stored refs pending

Analytic gradients for natural orbital functional theory

Ion Mitxelena, Mario Piris

arxiv:1612.04673 v1 · 2016-12-14 · 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{7ZIKKGVDJRFYIWJG3JSNY24HTD}

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	2026-05-18T00:35:35.152784Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

fe50a51aa34c4b845926da64dc6b8798c50e742d3c038a655e0cf61492dfb8c8

Aliases

arxiv: 1612.04673 · arxiv_version: 1612.04673v1 · doi: 10.48550/arxiv.1612.04673 · pith_short_12: 7ZIKKGVDJRFY · pith_short_16: 7ZIKKGVDJRFYIWJG · pith_short_8: 7ZIKKGVD

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/7ZIKKGVDJRFYIWJG3JSNY24HTD \
  | 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: fe50a51aa34c4b845926da64dc6b8798c50e742d3c038a655e0cf61492dfb8c8

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "efe7fc05316f0ea02f2379aa081309e319ef4d7823c9f230db533fe63b29a4bc",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "physics.chem-ph",
    "submitted_at": "2016-12-14T14:57:29Z",
    "title_canon_sha256": "363d76045543643ec161b1182310794c0c734ca77c9b798e91908a7d57248fb0"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1612.04673",
    "kind": "arxiv",
    "version": 1
  }
}