Pith Number

pith:V7JSUSRQ

pith:2017:V7JSUSRQ2EMG4LEV7LSESLPQV6

not attested not anchored not stored refs pending

Origin of the Galactic Halo: accretion vs. in situ formation

D. Romano, E. Spitoni, F. Matteucci, F. Vincenzo

arxiv:1707.07450 v2 · 2017-07-24 · 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{V7JSUSRQ2EMG4LEV7LSESLPQV6}

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	2026-05-18T00:07:43.807306Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

afd32a4a30d1186e2c95fae4492df0afab33dc7835d4b322eefc36761f259b28

Aliases

arxiv: 1707.07450 · arxiv_version: 1707.07450v2 · doi: 10.48550/arxiv.1707.07450 · pith_short_12: V7JSUSRQ2EMG · pith_short_16: V7JSUSRQ2EMG4LEV · pith_short_8: V7JSUSRQ

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/V7JSUSRQ2EMG4LEV7LSESLPQV6 \
  | 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: afd32a4a30d1186e2c95fae4492df0afab33dc7835d4b322eefc36761f259b28

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "999292c37e509b69d6ed3969c2d927ad50331976e463db8f85165753b2a18b37",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.GA",
    "submitted_at": "2017-07-24T09:28:16Z",
    "title_canon_sha256": "50b2568b6e52224f6d384282cbd6b713e0d87d68b8a58fe5f8f0c07f4c6965af"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1707.07450",
    "kind": "arxiv",
    "version": 2
  }
}