Pith Number

pith:ZD3PL3VP

pith:2000:ZD3PL3VPEBGRIKJ3FRBEFCHRQD

not attested not anchored not stored refs pending

The density of extremely red objects around high-z radio-loud AGN

A. Cimatti (Arcetri), D. Villani (Firenze), L. Pozzetti (Arcetri), S. di Serego Alighieri (Arcetri)

arxiv:astro-ph/0006019 v1 · 2000-06-01 · 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{ZD3PL3VPEBGRIKJ3FRBEFCHRQD}

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	2026-05-18T01:40:47.746674Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

c8f6f5eeaf204d14293b2c424288f180fc269ce9e07409e0d83611a71d80bccc

Aliases

arxiv: astro-ph/0006019 · arxiv_version: astro-ph/0006019v1 · doi: 10.48550/arxiv.astro-ph/0006019 · pith_short_12: ZD3PL3VPEBGR · pith_short_16: ZD3PL3VPEBGRIKJ3 · pith_short_8: ZD3PL3VP

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/ZD3PL3VPEBGRIKJ3FRBEFCHRQD \
  | 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: c8f6f5eeaf204d14293b2c424288f180fc269ce9e07409e0d83611a71d80bccc

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "632e31b2148a17b146e54d2915f99da56339992f6618ba97289c3b9439d9dadc",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "2000-06-01T14:14:09Z",
    "title_canon_sha256": "dacf5583b1d0d66708acc4dc321b2af5f91a35e161e03ff1bc6ce303174074ef"
  },
  "schema_version": "1.0",
  "source": {
    "id": "astro-ph/0006019",
    "kind": "arxiv",
    "version": 1
  }
}