Pith Number

pith:GQ4UUJSV

pith:2003:GQ4UUJSVJQNNIHDATNFDX6PWDO

not attested not anchored not stored refs pending

The Nearby QSO Host I Zw 1: NIR Probing of Structural Properties and Stellar Populations

(2) NASA/Goddard Space Flight Center, (3) National Radio Astronomy Observatory), A. Eckart (1), C. Straubmeier (1), E. Schinnerer (3) ((1) I. Physikalisches Institut, J. Moultaka (1), J. Scharwaechter (1), J. Staguhn (2), S. Pfalzner (1), Universitaet zu Koeln

arxiv:astro-ph/0311027 v1 · 2003-11-03 · 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{GQ4UUJSVJQNNIHDATNFDX6PWDO}

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	2026-05-18T00:52:34.949895Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

34394a26554c1ad41c609b4a3bf9f61ba069d38ae145e80fd271ef9467a2b928

Aliases

arxiv: astro-ph/0311027 · arxiv_version: astro-ph/0311027v1 · doi: 10.48550/arxiv.astro-ph/0311027 · pith_short_12: GQ4UUJSVJQNN · pith_short_16: GQ4UUJSVJQNNIHDA · pith_short_8: GQ4UUJSV

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/GQ4UUJSVJQNNIHDATNFDX6PWDO \
  | 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: 34394a26554c1ad41c609b4a3bf9f61ba069d38ae145e80fd271ef9467a2b928

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "3c0de944e118511a136234cc0fdb55f7ca02a85033ad3c002b2e13c45ea13921",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "2003-11-03T12:01:20Z",
    "title_canon_sha256": "01c8858b11b333bee70ed0b3bfc7692a0c15b8fcaacf9d541f02b17cabbde032"
  },
  "schema_version": "1.0",
  "source": {
    "id": "astro-ph/0311027",
    "kind": "arxiv",
    "version": 1
  }
}