Pith Number

pith:SAULTDZJ

pith:1999:SAULTDZJXUI3AHFDNS7SZZVIMJ

not attested not anchored not stored refs pending

The Phoenix survey: optical and near-infrared observations of faint radio sources

2), (2) Astrophysics Group, (3) Astrophysics Department, A. Georgakakis(1, A. Hopkins(3), Astronomy, Australia (4) European Southern Observatory, Blackett Laboratory, B. Mobasher(2), Chile), C. Lidman(4), Edgbaston, Imperial College, L. Cram(3), London UK, M. Rowan-Robinson(2) ((1) School of Physics, NSW, Santiago, School of Physics, UK, University of Birmingham, University of Sydney

arxiv:astro-ph/9903016 v1 · 1999-03-01 · 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{SAULTDZJXUI3AHFDNS7SZZVIMJ}

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	2026-07-04T16:10:45.094371Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

9028b98f29bd11b01ca36cbf2ce6a862747d0c1c25065e4717b04c9c84e51c92

Aliases

arxiv: astro-ph/9903016 · arxiv_version: astro-ph/9903016v1 · doi: 10.48550/arxiv.astro-ph/9903016 · pith_short_12: SAULTDZJXUI3 · pith_short_16: SAULTDZJXUI3AHFD · pith_short_8: SAULTDZJ

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/SAULTDZJXUI3AHFDNS7SZZVIMJ \
  | 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: 9028b98f29bd11b01ca36cbf2ce6a862747d0c1c25065e4717b04c9c84e51c92

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "3df09dd6b0573b2e2f924ec0206166c0918ecf63bfab4758d400fcc94ceb9c21",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "1999-03-01T17:08:16Z",
    "title_canon_sha256": "b98a343c58f1c6954a68ade06b11e3134859d9d87646987c2fbb06ed82dce6de"
  },
  "schema_version": "1.0",
  "source": {
    "id": "astro-ph/9903016",
    "kind": "arxiv",
    "version": 1
  }
}