Pith Number

pith:FRIPZVLC

pith:2005:FRIPZVLCKH3WTGR4RV7AI3WCNQ

not attested not anchored not stored refs pending

Active Cores in Deep Fields

A. Mueller (MPE), G. Hasinger (MPE)

arxiv:astro-ph/0510446 v2 · 2005-10-14 · 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{FRIPZVLCKH3WTGR4RV7AI3WCNQ}

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	2026-07-04T14:50:44.698101Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

2c50fcd56251f7699a3c8d7e046ec26c112c1adf717d14c54cf5e3846ed9c68b

Aliases

arxiv: astro-ph/0510446 · arxiv_version: astro-ph/0510446v2 · doi: 10.48550/arxiv.astro-ph/0510446 · pith_short_12: FRIPZVLCKH3W · pith_short_16: FRIPZVLCKH3WTGR4 · pith_short_8: FRIPZVLC

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/FRIPZVLCKH3WTGR4RV7AI3WCNQ \
  | 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: 2c50fcd56251f7699a3c8d7e046ec26c112c1adf717d14c54cf5e3846ed9c68b

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "ca927289e25b523577f09c7957df29e3f80caef47deb2df59c91669b4ff4e9f6",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "2005-10-14T16:57:51Z",
    "title_canon_sha256": "7285f57c5c3f4424f80e61d3cfdba7b325e47339c414519b5b9b6dc70dd4ad39"
  },
  "schema_version": "1.0",
  "source": {
    "id": "astro-ph/0510446",
    "kind": "arxiv",
    "version": 2
  }
}