Pith Number

pith:3JFLKRGC

pith:2020:3JFLKRGCBFKVDFL3C5YTYVIDZS

not attested not anchored not stored refs pending

An extended halo around an ancient dwarf galaxy

Alexander P. Ji, Anirudh Chiti, Anna Frebel, Denis Erkal, Dongwon Kim, Helmut Jerjen, John E. Norris, Joshua D. Simon, Laura J. Chang, Lina Necib

arxiv:2012.02309 v2 · 2020-12-03 · 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{3JFLKRGCBFKVDFL3C5YTYVIDZS}

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	2026-07-05T02:12:31.555711Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

da4ab544c2095551957b17713c5503cc8df2a7c43e2ab6c7c1c6b06427bc31bb

Aliases

arxiv: 2012.02309 · arxiv_version: 2012.02309v2 · doi: 10.48550/arxiv.2012.02309 · pith_short_12: 3JFLKRGCBFKV · pith_short_16: 3JFLKRGCBFKVDFL3 · pith_short_8: 3JFLKRGC

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/3JFLKRGCBFKVDFL3C5YTYVIDZS \
  | 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: da4ab544c2095551957b17713c5503cc8df2a7c43e2ab6c7c1c6b06427bc31bb

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "4b0eaf1537fa2b471afd98ed3bb9b08849307081f7948dff3db42bc07da79f2e",
    "cross_cats_sorted": [],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "astro-ph.GA",
    "submitted_at": "2020-12-03T22:22:35Z",
    "title_canon_sha256": "bb6b4ec427c699f1ae8962cb53cdad3f0703f8c762d23335de08b61a49581d05"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2012.02309",
    "kind": "arxiv",
    "version": 2
  }
}