Pith Number

pith:NRMHGDCK

pith:2007:NRMHGDCK7E3DNA2C4GL3Z7W736

not attested not anchored not stored refs pending

Spectroscopy of the hot pulsating star Beta Cephei. Velocities and EWs from C,N,O and Si lines

F. Leone, G. Catanzaro, I. Busa', P. Romano

arxiv:0708.1998 v1 · 2007-08-15 · astro-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{NRMHGDCK7E3DNA2C4GL3Z7W736}

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	2026-07-04T15:44:29.995291Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

6c58730c4af936368342e197bcfedfdfb24e90c6cb6332282d7f9d547b7b0d81

Aliases

arxiv: 0708.1998 · arxiv_version: 0708.1998v1 · doi: 10.48550/arxiv.0708.1998 · pith_short_12: NRMHGDCK7E3D · pith_short_16: NRMHGDCK7E3DNA2C · pith_short_8: NRMHGDCK

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/NRMHGDCK7E3DNA2C4GL3Z7W736 \
  | 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: 6c58730c4af936368342e197bcfedfdfb24e90c6cb6332282d7f9d547b7b0d81

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "9d4794dbbe0ccbea5aad5b605413c013620eb8c7b745125e23f5f4a78175631b",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "2007-08-15T08:14:46Z",
    "title_canon_sha256": "a21216ad0e5552dca113e3a1b58635681733f50587d1ac7bc208a4f12623144b"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0708.1998",
    "kind": "arxiv",
    "version": 1
  }
}