Pith Number

pith:2G7DJIWP

pith:2012:2G7DJIWPOBRIGZNAYN6KRWFKHX

not attested not anchored not stored refs pending

A Detailed Far-Ultraviolet Spectral Atlas of O-Type Stars

Myron A. Smith

arxiv:1208.3253 v1 · 2012-08-16 · astro-ph.SR

Open paper page JSON Open Graph Bundle Merged state Verified badge What is a Pith Number?

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{2G7DJIWPOBRIGZNAYN6KRWFKHX}

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	2026-05-18T01:55:15.488231Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

d1be34a2cf70628365a0c37ca8d8aa3deb0d9a5ce70ae1a6fc8cf5e029635e5c

Aliases

arxiv: 1208.3253 · arxiv_version: 1208.3253v1 · doi: 10.48550/arxiv.1208.3253 · pith_short_12: 2G7DJIWPOBRI · pith_short_16: 2G7DJIWPOBRIGZNA · pith_short_8: 2G7DJIWP

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/2G7DJIWPOBRIGZNAYN6KRWFKHX \
  | 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: d1be34a2cf70628365a0c37ca8d8aa3deb0d9a5ce70ae1a6fc8cf5e029635e5c

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "5e9428eb1d9296646518948b25424ddf4a679a0c873d7ce3440d29d43008aabc",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.SR",
    "submitted_at": "2012-08-16T00:22:06Z",
    "title_canon_sha256": "7c2440c6fbe1a1f9ad947b711bd12ce176614f9fbe5aa8719bc06c9567ba509c"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1208.3253",
    "kind": "arxiv",
    "version": 1
  }
}