Pith Number

pith:R2K6KW35

pith:2011:R2K6KW35R23VMWKXRU7BRR7GA4

not attested not anchored not stored refs pending

XMM-Newton observations of the young open cluster around lambda Orionis

(2) Chester F. Carlson Center for Imaging Science, E. Franciosini (1), Florence, G.G. Sacco (2) ((1) INAF/Osservatorio Astrofisico di Arcetri, Italy, Rochester, Rochester Institute of Technology, USA)

arxiv:1104.3803 v1 · 2011-04-19 · 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{R2K6KW35R23VMWKXRU7BRR7GA4}

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	2026-05-18T02:02:22.637331Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

8e95e55b7d8eb75659578d3e18c7e6070eb28d07e7681be018279f7abbf0cc12

Aliases

arxiv: 1104.3803 · arxiv_version: 1104.3803v1 · doi: 10.48550/arxiv.1104.3803 · pith_short_12: R2K6KW35R23V · pith_short_16: R2K6KW35R23VMWKX · pith_short_8: R2K6KW35

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/R2K6KW35R23VMWKXRU7BRR7GA4 \
  | 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: 8e95e55b7d8eb75659578d3e18c7e6070eb28d07e7681be018279f7abbf0cc12

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "2c254d9203f71a90db9b13beb157d13426d7f7729a00af01c974505c2c702945",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.SR",
    "submitted_at": "2011-04-19T17:02:26Z",
    "title_canon_sha256": "db60bf836625300f845ffb775a17e6521dba6ce3a2c0bfa1e6f590de8998bbeb"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1104.3803",
    "kind": "arxiv",
    "version": 1
  }
}