Pith Number

pith:H7WBCHL3

pith:1999:H7WBCHL3ACWL2HD33PXGAZD3GG

not attested not anchored not stored refs pending

NIR Spectroscopy with the VLT of a sample of ISO selected Hubble Deep Field South Galaxies

A. Franceschini, C. Cesarsky, D. Rigopoulou, H. Aussel, M. Dennefeld, M. Rowan-Robinson, P. van der Werf, R. Genzel, S. Oliver

arxiv:astro-ph/9912544 v2 · 1999-12-29 · 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{H7WBCHL3ACWL2HD33PXGAZD3GG}

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	2026-07-04T14:17:27.624387Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

3fec111d7b00acbd1c7bdbee60647b3192e3ec62e29ac1f01514cfa873c80952

Aliases

arxiv: astro-ph/9912544 · arxiv_version: astro-ph/9912544v2 · doi: 10.48550/arxiv.astro-ph/9912544 · pith_short_12: H7WBCHL3ACWL · pith_short_16: H7WBCHL3ACWL2HD3 · pith_short_8: H7WBCHL3

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/H7WBCHL3ACWL2HD33PXGAZD3GG \
  | 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: 3fec111d7b00acbd1c7bdbee60647b3192e3ec62e29ac1f01514cfa873c80952

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "16c79a6137df9b0353e87487b4a2183426a8fea948d87c165917a7435d61fe8e",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "1999-12-29T15:43:32Z",
    "title_canon_sha256": "52260a1fa90f943e476eb15b076fa1acd598e5940572b8a5cffb45025251da76"
  },
  "schema_version": "1.0",
  "source": {
    "id": "astro-ph/9912544",
    "kind": "arxiv",
    "version": 2
  }
}