Pith Number

pith:NK6OTUWJ

pith:2004:NK6OTUWJDX76GULTEPEQYTCS72

not attested not anchored not stored refs pending

Optimal classification of HCI spectra

G. Gaigalas, R. Karpuskiene, Z. Rudzikas

arxiv:physics/0405087 v1 · 2004-05-17 · physics.atom-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{NK6OTUWJDX76GULTEPEQYTCS72}

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	2026-07-04T16:49:51.460672Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

6abce9d2c91dffe3517323c90c4c52febac376f25037d1239a2313676e15b0b1

Aliases

arxiv: physics/0405087 · arxiv_version: physics/0405087v1 · doi: 10.48550/arxiv.physics/0405087 · pith_short_12: NK6OTUWJDX76 · pith_short_16: NK6OTUWJDX76GULT · pith_short_8: NK6OTUWJ

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/NK6OTUWJDX76GULTEPEQYTCS72 \
  | 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: 6abce9d2c91dffe3517323c90c4c52febac376f25037d1239a2313676e15b0b1

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "cb800c71c5755ff2299076ca382a79a82bff2d043307ded9b791fc3b811d9a1f",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "physics.atom-ph",
    "submitted_at": "2004-05-17T11:19:12Z",
    "title_canon_sha256": "7e5ede6de62c79061dfc17f6ce2d47d4850b1bc258109c055c33e69b8206517f"
  },
  "schema_version": "1.0",
  "source": {
    "id": "physics/0405087",
    "kind": "arxiv",
    "version": 1
  }
}