Pith Number

pith:YCHSDRPE

pith:2021:YCHSDRPEGCOYGVDFYMYXL53XJQ

not attested not anchored not stored refs pending

A feather on the hat: Tracing the giant stellar stream around the Sombrero galaxy

David Malin, David Martinez-Delgado, Denis Erkal, Giuseppe Donatiello, Javier Roman, Julio A. Carballo-Bello, Manuel Jimenez, Mischa Schirmer, Santi Roca-Fabrega, Seppo Laine

arxiv:2106.04548 v1 · 2021-06-08 · 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{YCHSDRPEGCOYGVDFYMYXL53XJQ}

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	2026-07-05T03:06:29.581126Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

c08f21c5e4309d835465c33175f7774c3ce814dcd626355bd2a887169a102dc1

Aliases

arxiv: 2106.04548 · arxiv_version: 2106.04548v1 · doi: 10.48550/arxiv.2106.04548 · pith_short_12: YCHSDRPEGCOY · pith_short_16: YCHSDRPEGCOYGVDF · pith_short_8: YCHSDRPE

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/YCHSDRPEGCOYGVDFYMYXL53XJQ \
  | 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: c08f21c5e4309d835465c33175f7774c3ce814dcd626355bd2a887169a102dc1

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "389cef401f34b67056e5a42c01104ad6d0f52d2437c83654fe2b1def236bad8e",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.GA",
    "submitted_at": "2021-06-08T17:36:56Z",
    "title_canon_sha256": "f2c66dc62111d6c4ac6fc6f1864dc9a994e5646e496387a776b814c17b8dd5b1"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2106.04548",
    "kind": "arxiv",
    "version": 1
  }
}