Pith Number

pith:EV4MPYR6

pith:2012:EV4MPYR6WS5KSB6KA2WASLGEOA

not attested not anchored not stored refs pending

Quasi-non-local gradient-level exchange-correlation approximation for metals and alloys

H. Lev\"am\"aki, K. Kokko, L. Vitos, M. P. J. Punkkinen

arxiv:1207.5923 v1 · 2012-07-25 · 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{EV4MPYR6WS5KSB6KA2WASLGEOA}

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	2026-05-18T01:56:07.871056Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

2578c7e23eb4baa907ca06ac092cc4701a4cd8cc8ce305cb51f24f3ff26d367e

Aliases

arxiv: 1207.5923 · arxiv_version: 1207.5923v1 · doi: 10.48550/arxiv.1207.5923 · pith_short_12: EV4MPYR6WS5K · pith_short_16: EV4MPYR6WS5KSB6K · pith_short_8: EV4MPYR6

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/EV4MPYR6WS5KSB6KA2WASLGEOA \
  | 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: 2578c7e23eb4baa907ca06ac092cc4701a4cd8cc8ce305cb51f24f3ff26d367e

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "0e7d488723c47248562b27155769ca478435e968b81daa1f012d99a398e3af6d",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cond-mat.mtrl-sci",
    "submitted_at": "2012-07-25T08:43:23Z",
    "title_canon_sha256": "39696dcaacc532a29ba09e29a92d74e5cd3848de6f3dc014863faf6b43dc4c0b"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1207.5923",
    "kind": "arxiv",
    "version": 1
  }
}