Pith Number

pith:7JDWNEOM

pith:2014:7JDWNEOMS5KV3OUHGAHF6K3ZZY

not attested not anchored not stored refs pending

MGB and the new Galactic O-Star Spectroscopic Survey spectral classification standard grid

A. Herrero, A. Marco, A. Sota, E. J. Alfaro, I. Negueruela, J. I. Arias, J. Ma\'iz Apell\'aniz, J. R. S. Le\~ao, N. R. Walborn, R. C. Gamen, R. H. Barb\'a, S. Sim\'on-D\'iaz

arxiv:1410.7615 v2 · 2014-10-23 · 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{7JDWNEOMS5KV3OUHGAHF6K3ZZY}

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	2026-05-18T02:39:00.595990Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

fa476691cc97555dba87300e5f2b79ce0633b0baf2e01abfcad527382e42f24c

Aliases

arxiv: 1410.7615 · arxiv_version: 1410.7615v2 · doi: 10.48550/arxiv.1410.7615 · pith_short_12: 7JDWNEOMS5KV · pith_short_16: 7JDWNEOMS5KV3OUH · pith_short_8: 7JDWNEOM

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/7JDWNEOMS5KV3OUHGAHF6K3ZZY \
  | 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: fa476691cc97555dba87300e5f2b79ce0633b0baf2e01abfcad527382e42f24c

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "860240e7283dc183cec876c4ca2ba851381803523869c60a7fa5da7b0664dbfe",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.SR",
    "submitted_at": "2014-10-23T07:56:30Z",
    "title_canon_sha256": "2c24090f6b9f12542173370e4d6d009a5f14b988afab9c4663b81695ff9ced7c"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1410.7615",
    "kind": "arxiv",
    "version": 2
  }
}