Pith Number

pith:JB7QKQ6P

pith:2015:JB7QKQ6PBEQ6LOZYIQCDMJS7V4

not attested not anchored not stored refs pending

Optical spectra from molecules to crystals: Insight from many-body perturbation theory

Caterina Cocchi, Claudia Draxl

arxiv:1502.07273 v2 · 2015-02-25 · 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{JB7QKQ6PBEQ6LOZYIQCDMJS7V4}

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	2026-05-18T01:26:10.590596Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

487f0543cf0921e5bb38440436265faf180b7e808e7140d29fc3c813a59f8765

Aliases

arxiv: 1502.07273 · arxiv_version: 1502.07273v2 · doi: 10.48550/arxiv.1502.07273 · pith_short_12: JB7QKQ6PBEQ6 · pith_short_16: JB7QKQ6PBEQ6LOZY · pith_short_8: JB7QKQ6P

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/JB7QKQ6PBEQ6LOZYIQCDMJS7V4 \
  | 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: 487f0543cf0921e5bb38440436265faf180b7e808e7140d29fc3c813a59f8765

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "d22659edcf68aa91750e0f695f454353471a8f856a2d836d767ad9531d5c502a",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cond-mat.mtrl-sci",
    "submitted_at": "2015-02-25T17:46:32Z",
    "title_canon_sha256": "a7684b3432eba7fc7f9dc4ca4008d6c8f9f3ff63bf79e79089201f9b87013999"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1502.07273",
    "kind": "arxiv",
    "version": 2
  }
}