Pith Number

pith:NWPJJMCB

pith:2004:NWPJJMCBA4E4RLGOHSB2HBQNNW

not attested not anchored not stored refs pending

The FORS Deep Field Spectroscopic Survey

A. Boehm, A. Gabasch, B. L. Ziegler, C. Tapken, D. Mehlert, I. Appenzeller, J. Heidt, K. Jaeger, O. Stahl, R. Bender, S. Noll, S. Seitz, U. Hopp

arxiv:astro-ph/0401500 v2 · 2004-01-23 · 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{NWPJJMCBA4E4RLGOHSB2HBQNNW}

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	2026-07-04T16:42:54.477688Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

6d9e94b0410709c8acce3c83a3860d6d84688824e519b1eaf78846a4d5340b9c

Aliases

arxiv: astro-ph/0401500 · arxiv_version: astro-ph/0401500v2 · doi: 10.48550/arxiv.astro-ph/0401500 · pith_short_12: NWPJJMCBA4E4 · pith_short_16: NWPJJMCBA4E4RLGO · pith_short_8: NWPJJMCB

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/NWPJJMCBA4E4RLGOHSB2HBQNNW \
  | 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: 6d9e94b0410709c8acce3c83a3860d6d84688824e519b1eaf78846a4d5340b9c

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "2d5094f745a2009fd03623eb98bc0b20d364fa29d84f50d746b1447ebc2e3aab",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "2004-01-23T14:52:44Z",
    "title_canon_sha256": "4e04f8bbb2cce7e4899b1faba24117125de86dfdaf7eabfb6225e9a53b947979"
  },
  "schema_version": "1.0",
  "source": {
    "id": "astro-ph/0401500",
    "kind": "arxiv",
    "version": 2
  }
}