Pith Number

pith:RHBGOELB

pith:2021:RHBGOELBHG227TLIOS72TVOOJ7

not attested not anchored not stored refs pending

Hubble Space Telescope Observations of NGC 253 Dwarf Satellites: Discovery of Three Ultra-faint Dwarf Galaxies

Anil C. Seth, Bur\c{c}in Mutlu-Pakdil, David J. Sand, Denija Crnojevi\'c, Elisa Toloba, Jay Strader, Joshua D. Simon, Kristine Spekkens, Michael G. Jones, Nelson Caldwell, Puragra Guhathakurta

arxiv:2108.09312 v1 · 2021-08-20 · 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{RHBGOELBHG227TLIOS72TVOOJ7}

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	2026-07-05T03:59:17.382341Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

89c267116139b5afcd6874bfa9d5ce4fc348f96450b707791ed547c65bc63aa9

Aliases

arxiv: 2108.09312 · arxiv_version: 2108.09312v1 · doi: 10.48550/arxiv.2108.09312 · pith_short_12: RHBGOELBHG22 · pith_short_16: RHBGOELBHG227TLI · pith_short_8: RHBGOELB

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/RHBGOELBHG227TLIOS72TVOOJ7 \
  | 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: 89c267116139b5afcd6874bfa9d5ce4fc348f96450b707791ed547c65bc63aa9

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "5f0881ce5663dc434eb408dea2cf0efa18114cd127a8a8dab7446b86e337bd03",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.GA",
    "submitted_at": "2021-08-20T18:00:01Z",
    "title_canon_sha256": "37a32178bff4783b7f3ca3b2a030dcc63af1637c3302375dd5ea02c43015bcb7"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2108.09312",
    "kind": "arxiv",
    "version": 1
  }
}