Pith Number

pith:WEKGWUMI

pith:1999:WEKGWUMIA2TFXQHIZWVLRRZEVW

not attested not anchored not stored refs pending

Starburst galaxies and structure in the submillimetre background towards the Hubble Deep Field

A. Efstathiou, A. Lawrence, A.W. Blain, D.H. Hughes, J.A. Peacock, J.S. Dunlop, M. Rowan-Robinson, M.S. Longair, R.G. Mann, R.J. Ivison, S.J. Oliver, S. Serjeant, T. Jenness

arxiv:astro-ph/9912231 v2 · 1999-12-10 · 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{WEKGWUMIA2TFXQHIZWVLRRZEVW}

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	2026-05-18T01:40:12.301067Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

b1146b518806a65bc0e8cdaab8c724adbea25cd858ac12c318f91e98468ac43d

Aliases

arxiv: astro-ph/9912231 · arxiv_version: astro-ph/9912231v2 · doi: 10.48550/arxiv.astro-ph/9912231 · pith_short_12: WEKGWUMIA2TF · pith_short_16: WEKGWUMIA2TFXQHI · pith_short_8: WEKGWUMI

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/WEKGWUMIA2TFXQHIZWVLRRZEVW \
  | 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: b1146b518806a65bc0e8cdaab8c724adbea25cd858ac12c318f91e98468ac43d

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "b20e42573d8fcfa29e46f75d041e26f9c556acf737300205957900c8b93927a6",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "1999-12-10T16:03:18Z",
    "title_canon_sha256": "9c4a7804957833618995964d893afdea5b9b8df740f33ccbb94634fdfa531033"
  },
  "schema_version": "1.0",
  "source": {
    "id": "astro-ph/9912231",
    "kind": "arxiv",
    "version": 2
  }
}