Pith Number

pith:MANKX65U

pith:2020:MANKX65UF55GBW6AIQS3RMPU2G

not attested not anchored not stored refs pending

The Strikingly Metal-Rich Halo of the Sombrero Galaxy

(2) U. Michigan, (3) McMaster University, (4) U. Toledo, (5) PUC, (6) STFC UK Astronomy Tech. Centre, Edinburgh), Matteo Correnti (1), Oleg Y. Gnedin (2), Paul Goudfrooij (1), Roger E. Cohen (1), Royal Observatory, Ruben Sanchez-Janssen (6) ((1) STScI, Rupali Chandar (4), Thomas H. Puzia (5), William E. Harris (3)

arxiv:2001.01670 v2 · 2020-01-06 · astro-ph.GA · astro-ph.SR

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{MANKX65UF55GBW6AIQS3RMPU2G}

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	2026-07-05T00:41:54.838447Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

601aabfbb42f7a60dbc04425b8b1f4d18262cc64342b60f852c2f6f8852b33a6

Aliases

arxiv: 2001.01670 · arxiv_version: 2001.01670v2 · doi: 10.48550/arxiv.2001.01670 · pith_short_12: MANKX65UF55G · pith_short_16: MANKX65UF55GBW6A · pith_short_8: MANKX65U

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/MANKX65UF55GBW6AIQS3RMPU2G \
  | 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: 601aabfbb42f7a60dbc04425b8b1f4d18262cc64342b60f852c2f6f8852b33a6

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "7b6b607e3d7d8c828c5000c3b2fc9061f76fa7f37f3b84a941d548d5563169d7",
    "cross_cats_sorted": [
      "astro-ph.SR"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.GA",
    "submitted_at": "2020-01-06T17:12:53Z",
    "title_canon_sha256": "9ff319c3905d77c86a516106090f482c465c5cf042bf9d04b220274341c22833"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2001.01670",
    "kind": "arxiv",
    "version": 2
  }
}