Pith Number

pith:GAFLQSR4

pith:2016:GAFLQSR44QMOLNE5V42S4ZOXAK

not attested not anchored not stored refs pending

Ultra-diffuse and Ultra-compact Galaxies in the Frontier Fields Cluster Abell 2744

Aaron J. Romanowsky, Duncan Forbes, Jean Brodie, Pieter van Dokkum, Roberto Abraham, Steven Janssens

arxiv:1701.00011 v1 · 2016-12-30 · 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{GAFLQSR44QMOLNE5V42S4ZOXAK}

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	2026-05-18T00:46:13.287389Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

300ab84a3ce418e5b49daf352e65d70291b4d12fdd474e86657588d843910acb

Aliases

arxiv: 1701.00011 · arxiv_version: 1701.00011v1 · doi: 10.48550/arxiv.1701.00011 · pith_short_12: GAFLQSR44QMO · pith_short_16: GAFLQSR44QMOLNE5 · pith_short_8: GAFLQSR4

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/GAFLQSR44QMOLNE5V42S4ZOXAK \
  | 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: 300ab84a3ce418e5b49daf352e65d70291b4d12fdd474e86657588d843910acb

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "397a78afdc3f2026d68c52709aefe1a7a2237515363c83e7ad42a3560c8559db",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.GA",
    "submitted_at": "2016-12-30T21:00:11Z",
    "title_canon_sha256": "517a3904c3946e2448bc9fbb0bca2640666db1b2d7496172a5e2f1c346095891"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1701.00011",
    "kind": "arxiv",
    "version": 1
  }
}