Pith Number

pith:DILQH2HN

pith:2005:DILQH2HNDKRNYBTHGMKLPZJ4XR

not attested not anchored not stored refs pending

Local Starbursts: Perspectives from the Optical

Daniela Calzetti (STScI)

arxiv:astro-ph/0501027 v1 · 2005-01-03 · 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{DILQH2HNDKRNYBTHGMKLPZJ4XR}

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	2026-05-18T01:27:16.313208Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

1a1703e8ed1aa2dc06673314b7e53cbc497212e47f39eb6a5cbde13192f86cf7

Aliases

arxiv: astro-ph/0501027 · arxiv_version: astro-ph/0501027v1 · doi: 10.48550/arxiv.astro-ph/0501027 · pith_short_12: DILQH2HNDKRN · pith_short_16: DILQH2HNDKRNYBTH · pith_short_8: DILQH2HN

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/DILQH2HNDKRNYBTHGMKLPZJ4XR \
  | 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: 1a1703e8ed1aa2dc06673314b7e53cbc497212e47f39eb6a5cbde13192f86cf7

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "680fed98e5b5411382d15b0cabc1508e2dae523a95dae24bc30515ffa148c6ef",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "2005-01-03T19:44:24Z",
    "title_canon_sha256": "142818e3a6d9c65b748d13a401086cab47f4bbb5bebac6c6625efabad851ad34"
  },
  "schema_version": "1.0",
  "source": {
    "id": "astro-ph/0501027",
    "kind": "arxiv",
    "version": 1
  }
}