Pith Number

pith:F44LLQ4H

pith:2021:F44LLQ4HMOPII2RHC36KYKB42R

not attested not anchored not stored refs pending

Formation of an extended stellar halo around an ultra-faint dwarf galaxy following one of the earliest mergers from galactic building blocks

Anna Frebel, Naoki Yoshida, Yuta Tarumi

arxiv:2103.01962 v2 · 2021-03-02 · astro-ph.GA · 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{F44LLQ4HMOPII2RHC36KYKB42R}

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	2026-07-05T02:51:18.737667Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

2f38b5c387639e846a2716fcac283cd445cf137f3ee034e48e6f5bb0584a3774

Aliases

arxiv: 2103.01962 · arxiv_version: 2103.01962v2 · doi: 10.48550/arxiv.2103.01962 · pith_short_12: F44LLQ4HMOPI · pith_short_16: F44LLQ4HMOPII2RH · pith_short_8: F44LLQ4H

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/F44LLQ4HMOPII2RHC36KYKB42R \
  | 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: 2f38b5c387639e846a2716fcac283cd445cf137f3ee034e48e6f5bb0584a3774

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "4dbc330ac1b100c29aceeeb09b3b7fc6611ed205b7a94534ccbfff98dec452c9",
    "cross_cats_sorted": [
      "astro-ph.CO"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.GA",
    "submitted_at": "2021-03-02T19:00:00Z",
    "title_canon_sha256": "903dd1b9a5c11842327db067d07e5bb2ec33b4244ee836e2aea8f83f8eecf20d"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2103.01962",
    "kind": "arxiv",
    "version": 2
  }
}