Pith Number

pith:5HZR2E2L

pith:2004:5HZR2E2L6VREBD7BWVZWNZVGLC

not attested not anchored not stored refs pending

The Rest-frame Optical Spectra of SCUBA Galaxies

Andrew Blain, Ian Smail, Mark Swinbank, Rob Ivison & William Keel, Scott Chapman

arxiv:astro-ph/0412050 v1 · 2004-12-02 · 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{5HZR2E2L6VREBD7BWVZWNZVGLC}

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	2026-05-18T00:48:10.578730Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

e9f31d134bf562408fe1b57366e6a65884770af1b6a492bc969ca3e7a80e82ef

Aliases

arxiv: astro-ph/0412050 · arxiv_version: astro-ph/0412050v1 · doi: 10.48550/arxiv.astro-ph/0412050 · pith_short_12: 5HZR2E2L6VRE · pith_short_16: 5HZR2E2L6VREBD7B · pith_short_8: 5HZR2E2L

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/5HZR2E2L6VREBD7BWVZWNZVGLC \
  | 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: e9f31d134bf562408fe1b57366e6a65884770af1b6a492bc969ca3e7a80e82ef

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "7fcb8497fab55ab5b4f647a8d29e6b2427e5e77ee2f697d49a74d9fc703a3544",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "2004-12-02T09:33:36Z",
    "title_canon_sha256": "eb724148d76bdad7ca95dfcba4dfd8a732d2db1cb912d734d5d3134670bf48b7"
  },
  "schema_version": "1.0",
  "source": {
    "id": "astro-ph/0412050",
    "kind": "arxiv",
    "version": 1
  }
}