Pith Number

pith:B7FQMASP

pith:2012:B7FQMASPFIHIOWEADF6JCRMFJB

not attested not anchored not stored refs pending

The Star Formation History of Leo T from Hubble Space Telescope Imaging

Andrew E. Dolphin, Benjamin F. Williams, Daniel B. Zucker, Daniel R. Weisz, Eric F. Bell, Jelte T. A. de Jong, Jon A. Holtzman, Julianne J. Dalcanton, Karoline M. Gilbert, Nicolas F. Martin, N. Wyn Evans, Vasily Belokurov

arxiv:1201.4859 v1 · 2012-01-23 · astro-ph.CO · 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{B7FQMASPFIHIOWEADF6JCRMFJB}

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	2026-05-18T01:58:43.172229Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

0fcb06024f2a0e875880197c914585485200ede9ffecf49a9a2a798f8b329be2

Aliases

arxiv: 1201.4859 · arxiv_version: 1201.4859v1 · doi: 10.48550/arxiv.1201.4859 · pith_short_12: B7FQMASPFIHI · pith_short_16: B7FQMASPFIHIOWEA · pith_short_8: B7FQMASP

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/B7FQMASPFIHIOWEADF6JCRMFJB \
  | 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: 0fcb06024f2a0e875880197c914585485200ede9ffecf49a9a2a798f8b329be2

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "89c9710dcaeaf1aa6c91e0b444e361cf6d691c39b5f17ce7efeaa147efd1ce28",
    "cross_cats_sorted": [
      "astro-ph.GA"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.CO",
    "submitted_at": "2012-01-23T21:00:02Z",
    "title_canon_sha256": "1410789b9ab00b8edbb169ec038635f10f93c3b35acbd661756a2a50036e3119"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1201.4859",
    "kind": "arxiv",
    "version": 1
  }
}