Pith Number

pith:PRWCRJAC

pith:2006:PRWCRJACMDVRYMIQQC4IQWRGRU

not attested not anchored not stored refs pending

Bayesian Estimation of Hardness Ratios: Modeling and Computations

Andreas Zezas, Aneta Siemiginowska, Bradford J. Wargelin, Craig Heinke, David A. van Dyk, Taeyoung Park, Vinay L. Kashyap

arxiv:astro-ph/0606247 v1 · 2006-06-10 · astro-ph

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{PRWCRJACMDVRYMIQQC4IQWRGRU}

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	2026-05-18T01:16:22.219488Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

7c6c28a40260eb1c311080b8885a268d0aaa1848d5a8c00d35e9b375194ffa3d

Aliases

arxiv: astro-ph/0606247 · arxiv_version: astro-ph/0606247v1 · doi: 10.48550/arxiv.astro-ph/0606247 · pith_short_12: PRWCRJACMDVR · pith_short_16: PRWCRJACMDVRYMIQ · pith_short_8: PRWCRJAC

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/PRWCRJACMDVRYMIQQC4IQWRGRU \
  | 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: 7c6c28a40260eb1c311080b8885a268d0aaa1848d5a8c00d35e9b375194ffa3d

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "7dbb7a77a4ef06507de25efc1ffd1f15e72473f253fd1847af278ccb4c206b7c",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "2006-06-10T22:12:25Z",
    "title_canon_sha256": "4a7ab0df11f8937a1a49120b5b8b71f04745649efad039d0858965247f5bf318"
  },
  "schema_version": "1.0",
  "source": {
    "id": "astro-ph/0606247",
    "kind": "arxiv",
    "version": 1
  }
}