Pith Number

pith:DJKEWNGQ

pith:2018:DJKEWNGQWCZK4DTSAAG3IE4NMV

not attested not anchored not stored refs pending

Variational Excitations in Real Solids: Optical Gaps and Insights into Many-Body Perturbation Theory

Eric Neuscamman, Luning Zhao

arxiv:1804.09663 v2 · 2018-04-25 · cond-mat.str-el · 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{DJKEWNGQWCZK4DTSAAG3IE4NMV}

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	2026-05-17T23:39:49.028484Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

1a544b34d0b0b2ae0e72000db4138d657becd40c8415513f8489382a23be81bd

Aliases

arxiv: 1804.09663 · arxiv_version: 1804.09663v2 · doi: 10.48550/arxiv.1804.09663 · pith_short_12: DJKEWNGQWCZK · pith_short_16: DJKEWNGQWCZK4DTS · pith_short_8: DJKEWNGQ

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/DJKEWNGQWCZK4DTSAAG3IE4NMV \
  | 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: 1a544b34d0b0b2ae0e72000db4138d657becd40c8415513f8489382a23be81bd

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "5aee2e111dd6ec80bc4f3b8c0e276c2963e5b4a5118ef1377374a1868fb439d5",
    "cross_cats_sorted": [
      "physics.chem-ph"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cond-mat.str-el",
    "submitted_at": "2018-04-25T16:27:15Z",
    "title_canon_sha256": "9d21858c484e77d9f3f043edf9a8095cd69aab3fa6c1bba9c5ec7b60f97b9de1"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1804.09663",
    "kind": "arxiv",
    "version": 2
  }
}