Pith Number

pith:H4LD5TB5

pith:2009:H4LD5TB5E36QCF7ADU2WDYCARA

not attested not anchored not stored refs pending

The True Durations of Starbursts: HST Observations of Three Nearby Dwarf Starburst Galaxies

Andrew Dolphin, Daniel Weisz, David Stark, Evan D. Skillman, John M. Cannon, Julianne J. Dalcanton, Kristen B. W. McQuinn

arxiv:0901.2361 v1 · 2009-01-15 · astro-ph.GA · astro-ph.SR

Open paper page JSON Open Graph Bundle Merged state Verified badge What is a Pith Number?

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{H4LD5TB5E36QCF7ADU2WDYCARA}

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	2026-05-18T04:29:17.363003Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

3f163ecc3d26fd0117e01d3561e040883641adcf5e819994ad56572a51155f46

Aliases

arxiv: 0901.2361 · arxiv_version: 0901.2361v1 · doi: 10.48550/arxiv.0901.2361 · pith_short_12: H4LD5TB5E36Q · pith_short_16: H4LD5TB5E36QCF7A · pith_short_8: H4LD5TB5

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/H4LD5TB5E36QCF7ADU2WDYCARA \
  | 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: 3f163ecc3d26fd0117e01d3561e040883641adcf5e819994ad56572a51155f46

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "a3ab95d086b0d4e5b2ed8c0b098c83982c355f5cfc778a3740af81426198ea3e",
    "cross_cats_sorted": [
      "astro-ph.SR"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.GA",
    "submitted_at": "2009-01-15T22:25:55Z",
    "title_canon_sha256": "e40b12e4ecf7199adf24cc09eaf18b3830faef2530797a29ef57123829ae046f"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0901.2361",
    "kind": "arxiv",
    "version": 1
  }
}