Pith Number

pith:QKZ27BFN

pith:2003:QKZ27BFN34BMYA3TZPKBZYDAZZ

not attested not anchored not stored refs pending

The TESIS project: Are type 2 QSO hidden in X-ray emitting EROs?

C. Maraston, F. Mannucci, G. Feulner, M. Longhetti, N. Drory, P. Saracco, P. Severgnini, R. Bender, R. Della Ceca, U. Hopp, V. Braito

arxiv:astro-ph/0312098 v1 · 2003-12-03 · 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{QKZ27BFN34BMYA3TZPKBZYDAZZ}

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	2026-07-04T14:13:13.613821Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

82b3af84addf02cc0373cbd41ce060ce734b95a9cb7bcd715864d0bf509623a7

Aliases

arxiv: astro-ph/0312098 · arxiv_version: astro-ph/0312098v1 · doi: 10.48550/arxiv.astro-ph/0312098 · pith_short_12: QKZ27BFN34BM · pith_short_16: QKZ27BFN34BMYA3T · pith_short_8: QKZ27BFN

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/QKZ27BFN34BMYA3TZPKBZYDAZZ \
  | 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: 82b3af84addf02cc0373cbd41ce060ce734b95a9cb7bcd715864d0bf509623a7

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "33184bdab2048f7dad13e86b1b2d8551ab8573a287fcb29674b818d30a52222b",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "2003-12-03T17:33:26Z",
    "title_canon_sha256": "73cee0efac5b5900eb58ba1144998c79643f37dd547858576316ccfc42b61614"
  },
  "schema_version": "1.0",
  "source": {
    "id": "astro-ph/0312098",
    "kind": "arxiv",
    "version": 1
  }
}