Pith Number

pith:4P2QI4YQ

pith:2008:4P2QI4YQVSVJBHVE27OBYWY4Y2

not attested not anchored not stored refs pending

Yambo: an \textit{ab initio} tool for excited state calculations

Andrea Marini, Conor Hogan, Daniele Varsano, Myrta Gr\"uning

arxiv:0810.3118 v2 · 2008-10-17 · 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{4P2QI4YQVSVJBHVE27OBYWY4Y2}

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	2026-05-18T04:20:23.588465Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

e3f5047310acaa909ea4d7dc1c5b1cc680f745cbe186a2b5f5617367fa1a606f

Aliases

arxiv: 0810.3118 · arxiv_version: 0810.3118v2 · doi: 10.48550/arxiv.0810.3118 · pith_short_12: 4P2QI4YQVSVJ · pith_short_16: 4P2QI4YQVSVJBHVE · pith_short_8: 4P2QI4YQ

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/4P2QI4YQVSVJBHVE27OBYWY4Y2 \
  | 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: e3f5047310acaa909ea4d7dc1c5b1cc680f745cbe186a2b5f5617367fa1a606f

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "97d5eb248cb046c5a0b8132028d134ecac58f342ec74aa7f65e9356dd4772849",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cond-mat.mtrl-sci",
    "submitted_at": "2008-10-17T10:29:38Z",
    "title_canon_sha256": "b4bc210c580ec9ea826db4fa0c3e315ab2cbecad856f904d9336f16a23aac2ce"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0810.3118",
    "kind": "arxiv",
    "version": 2
  }
}