Pith Number

pith:HZN5VJAQ

pith:2009:HZN5VJAQEABUBKCLDKKMXERSF3

not attested not anchored not stored refs pending

Star-Forming or Starbursting? The Ultraviolet Conundrum

C. Engelbracht, D. Calzetti, D. Dale, J. C. Lee, J. Portouw, K. D. Gordon, M. Boquien, R. Kennicutt, S. Hong

arxiv:0910.0774 v1 · 2009-10-05 · astro-ph.CO

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{HZN5VJAQEABUBKCLDKKMXERSF3}

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	2026-05-18T02:34:20.165957Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

3e5bdaa410200340a84b1a94cb92322eda30f6139a6c0f5dafb1123adc56c00b

Aliases

arxiv: 0910.0774 · arxiv_version: 0910.0774v1 · doi: 10.48550/arxiv.0910.0774 · pith_short_12: HZN5VJAQEABU · pith_short_16: HZN5VJAQEABUBKCL · pith_short_8: HZN5VJAQ

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/HZN5VJAQEABUBKCLDKKMXERSF3 \
  | 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: 3e5bdaa410200340a84b1a94cb92322eda30f6139a6c0f5dafb1123adc56c00b

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "58a4cf29155a67711a8af6324a0f6173478231235d1845fd0d6d0faeab02b8d3",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.CO",
    "submitted_at": "2009-10-05T14:49:27Z",
    "title_canon_sha256": "052321e406cb514c76c5828448b5a4e9c68fc22302d1e6fb433c89eb9b6dee3f"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0910.0774",
    "kind": "arxiv",
    "version": 1
  }
}