Pith Number

pith:QASVNM3Q

pith:2011:QASVNM3QQA7YCUMA3BJSOZR7SI

not attested not anchored not stored refs pending

A third massive star component in the \sigma\ Orionis AB system

J.A. Caballero, J. Lorenzo, S. Sim\'on-D\'iaz

arxiv:1108.4622 v1 · 2011-08-23 · 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{QASVNM3QQA7YCUMA3BJSOZR7SI}

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	2026-05-18T02:00:49.231500Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

802556b370803f815180d85327663f9236bd4bc70be933ee88bd5fe8eb108142

Aliases

arxiv: 1108.4622 · arxiv_version: 1108.4622v1 · doi: 10.48550/arxiv.1108.4622 · pith_short_12: QASVNM3QQA7Y · pith_short_16: QASVNM3QQA7YCUMA · pith_short_8: QASVNM3Q

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/QASVNM3QQA7YCUMA3BJSOZR7SI \
  | 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: 802556b370803f815180d85327663f9236bd4bc70be933ee88bd5fe8eb108142

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "fa1f7551367469813ed51ecf310924dec3f1b88099da2f99b2d89cbc5b0dd549",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.SR",
    "submitted_at": "2011-08-23T15:00:23Z",
    "title_canon_sha256": "ea22912f848a42a6323d79044dd505a1ac69f17dc083b6ea58cabc946d766fa2"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1108.4622",
    "kind": "arxiv",
    "version": 1
  }
}