Pith Number

pith:OS5G5HGI

pith:2016:OS5G5HGIYVJLUMLYKKX5Q2K7FQ

not attested not anchored not stored refs pending

The statistical uncertainties on X-ray flux and spectral parameters from Chandra ACIS-I observations of faint sources: Application to the Cygnus OB2 Association

E. Flaccomio, J. F. Albacete-Colombo, J. J. Drake, M. Guarcello, N. J. Wright, V. Kashyap

arxiv:1603.08372 v1 · 2016-03-28 · astro-ph.IM · astro-ph.HE

Open paper page JSON Open Graph Bundle Merged state Verified badge What is a Pith Number?

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{OS5G5HGIYVJLUMLYKKX5Q2K7FQ}

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	2026-05-18T01:18:10.936026Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

74ba6e9cc8c552ba317852afd8695f2c24b072d5bb065edd26e530b6fb781efb

Aliases

arxiv: 1603.08372 · arxiv_version: 1603.08372v1 · doi: 10.48550/arxiv.1603.08372 · pith_short_12: OS5G5HGIYVJL · pith_short_16: OS5G5HGIYVJLUMLY · pith_short_8: OS5G5HGI

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/OS5G5HGIYVJLUMLYKKX5Q2K7FQ \
  | 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: 74ba6e9cc8c552ba317852afd8695f2c24b072d5bb065edd26e530b6fb781efb

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "3d2ee29eb5b863643e80254bc37ebc287c15b37f35c02c6fb0c9739726b0eb1d",
    "cross_cats_sorted": [
      "astro-ph.HE"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.IM",
    "submitted_at": "2016-03-28T12:54:32Z",
    "title_canon_sha256": "58afa64443d7da471cd2b01799710c9526cd128d986c34b7b583138ecee31115"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1603.08372",
    "kind": "arxiv",
    "version": 1
  }
}