Pith Number

pith:MVMVW5GY

pith:2013:MVMVW5GYKLXOZNJL4JDPOWNRNZ

not attested not anchored not stored refs pending

Spectroscopy of 13 high mass stars in the Cyg OB2 association

E.L. Chentsov, M.V. Yushkin, V.E. Panchuk, V.G. Klochkova

arxiv:1306.1087 v1 · 2013-06-05 · 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{MVMVW5GYKLXOZNJL4JDPOWNRNZ}

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	2026-05-18T03:21:44.397579Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

65595b74d852eeecb52be246f759b16e6a5e7836c0a6cf5f0772bdf9b3bda05c

Aliases

arxiv: 1306.1087 · arxiv_version: 1306.1087v1 · doi: 10.48550/arxiv.1306.1087 · pith_short_12: MVMVW5GYKLXO · pith_short_16: MVMVW5GYKLXOZNJL · pith_short_8: MVMVW5GY

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/MVMVW5GYKLXOZNJL4JDPOWNRNZ \
  | 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: 65595b74d852eeecb52be246f759b16e6a5e7836c0a6cf5f0772bdf9b3bda05c

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "26e49ad45143e3152c8d1e0453d62a9dfef2d98e0bdfe17426dae80c81abf646",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.SR",
    "submitted_at": "2013-06-05T12:58:10Z",
    "title_canon_sha256": "7b51c7c650f75979fb38974b243db34e7ff6518898da8a947d573858e6c29133"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1306.1087",
    "kind": "arxiv",
    "version": 1
  }
}