Pith Number

pith:44J4JJLZ

pith:2015:44J4JJLZUMRCWGEQCFHPS43GGR

not attested not anchored not stored refs pending

Hubble Tarantula Treasury Project: Unraveling Tarantula's Web. II. Optical and Near Infrared Star Formation History of the Starburst Cluster NGC 2070 in 30 Doradus

A. Aloisi (STScI), D. A. Gouliermis (U.Heidelberg), D. J. Lennon (ESAC), D. Zaritsky (University of Arizona), E. K. Grebel (U.Heidelberg), E. Sabbi (STScI), G. de Marchi (ESA-ESTEC), J. Anderson (STScI), L. J. Smith (ESA/STScI), M. Cignoni (STScI), M. Tosi (INAF-Bologna), P. Zeidler (U.Heidelberg), R. P. van der Marel (STScI)

arxiv:1505.04799 v1 · 2015-05-18 · astro-ph.SR · astro-ph.GA

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{44J4JJLZUMRCWGEQCFHPS43GGR}

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	2026-05-18T01:12:08.516207Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

e713c4a579a3222b1890114ef973663464d5bc783ad5fcac0b2a700d09ec03d8

Aliases

arxiv: 1505.04799 · arxiv_version: 1505.04799v1 · doi: 10.48550/arxiv.1505.04799 · pith_short_12: 44J4JJLZUMRC · pith_short_16: 44J4JJLZUMRCWGEQ · pith_short_8: 44J4JJLZ

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/44J4JJLZUMRCWGEQCFHPS43GGR \
  | 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: e713c4a579a3222b1890114ef973663464d5bc783ad5fcac0b2a700d09ec03d8

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "f3b9f27daed6758bc0edb8c75c7a90892d20bb2db9514302d4db8db481225166",
    "cross_cats_sorted": [
      "astro-ph.GA"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.SR",
    "submitted_at": "2015-05-18T20:03:01Z",
    "title_canon_sha256": "09eef161560a7210b4ce007e2132b36360a5af3b6f619579510cc0deae60a503"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1505.04799",
    "kind": "arxiv",
    "version": 1
  }
}