Pith Number

pith:DEUQYUC4

pith:2009:DEUQYUC4HSXVYP7BVHEVG4ZI2P

not attested not anchored not stored refs pending

Does Collinder 236 host a Cepheid calibrator?

Daniel J. Majaess, David G. Turner, D. Forbes, Leonid N. Berdnikov, Mohamed Abdel-Sabour Abdel-Latif, P. J. T. Leonard

arxiv:0905.0834 v1 · 2009-05-06 · astro-ph.GA

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{DEUQYUC4HSXVYP7BVHEVG4ZI2P}

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	2026-05-18T02:13:47.120617Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

19290c505c3caf5c3fe1a9c9537328d3d075a8501b8a4ea03029f661659a5d73

Aliases

arxiv: 0905.0834 · arxiv_version: 0905.0834v1 · doi: 10.48550/arxiv.0905.0834 · pith_short_12: DEUQYUC4HSXV · pith_short_16: DEUQYUC4HSXVYP7B · pith_short_8: DEUQYUC4

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/DEUQYUC4HSXVYP7BVHEVG4ZI2P \
  | 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: 19290c505c3caf5c3fe1a9c9537328d3d075a8501b8a4ea03029f661659a5d73

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "6e980f56ac47d87f8627a2d2d36613c10d7bd994aca2dd2af102b8d899eb29e2",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.GA",
    "submitted_at": "2009-05-06T14:14:54Z",
    "title_canon_sha256": "d04120a6820fe8fc00ab9b10a2cf009e6b0a9aabc290339ce7574e3ac9b98009"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0905.0834",
    "kind": "arxiv",
    "version": 1
  }
}