Pith Number

pith:27BY5LGG

pith:2010:27BY5LGGD2IGIW3FSUQBBUA6KY

not attested not anchored not stored refs pending

Non-thermal radio emission from O-type stars. IV. Cyg OB2 No. 8A

D. Volpi, G. Rauw, M. De Becker, R. Blomme

arxiv:1006.3540 v1 · 2010-06-17 · 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{27BY5LGGD2IGIW3FSUQBBUA6KY}

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	2026-05-18T02:06:44.974743Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

d7c38eacc61e90645b65952010d01e562e5c57765b6bacd91b1e3f2f9b4794c4

Aliases

arxiv: 1006.3540 · arxiv_version: 1006.3540v1 · doi: 10.48550/arxiv.1006.3540 · pith_short_12: 27BY5LGGD2IG · pith_short_16: 27BY5LGGD2IGIW3F · pith_short_8: 27BY5LGG

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/27BY5LGGD2IGIW3FSUQBBUA6KY \
  | 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: d7c38eacc61e90645b65952010d01e562e5c57765b6bacd91b1e3f2f9b4794c4

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "5a220ffc3cafd0503a34a35a7cb7a2965213dbe20ff4ce629dd9a89affd264a9",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.SR",
    "submitted_at": "2010-06-17T18:26:31Z",
    "title_canon_sha256": "65b08b51c40fd9538a25c1e3e8984c98a236f1ea63e230a97e57e01a163479da"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1006.3540",
    "kind": "arxiv",
    "version": 1
  }
}