Pith Number

pith:4L2YIZK5

pith:2021:4L2YIZK5MFZRJY6AGS4CGU5C37

not attested not anchored not stored refs pending

Hamilton's Object -- a clumpy galaxy straddling the gravitational caustic of a galaxy cluster : Constraints on dark matter clumping

Carolin Villforth, Jenny Wagner, Mitchell Rudisel, Po-Chieh Huang, Richard E. Griffiths, Timothy Hamilton

arxiv:2105.04562 v1 · 2021-05-10 · astro-ph.CO · 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{4L2YIZK5MFZRJY6AGS4CGU5C37}

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.

Cited by

1 paper in Pith

A redshift of z=3.20 for the bright arc in eMACSJ2229.9-0808: Comment on Wagner & Falco (2026) "Hamilton's Object revisited: A challenging source redshift of a strong lensing configuration"

Receipt and verification

First computed	2026-07-05T02:43:23.745706Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

e2f584655d617314e3c034b82353a2dfd2b9291aa6606eac4be240e75d3ffc8d

Aliases

arxiv: 2105.04562 · arxiv_version: 2105.04562v1 · doi: 10.48550/arxiv.2105.04562 · pith_short_12: 4L2YIZK5MFZR · pith_short_16: 4L2YIZK5MFZRJY6A · pith_short_8: 4L2YIZK5

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/4L2YIZK5MFZRJY6AGS4CGU5C37 \
  | 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: e2f584655d617314e3c034b82353a2dfd2b9291aa6606eac4be240e75d3ffc8d

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "3b030c8abbdb8d20235cb0c26058768ff652e2178804da6292e151725a15be7f",
    "cross_cats_sorted": [
      "astro-ph.GA"
    ],
    "license": "http://creativecommons.org/licenses/by-nc-nd/4.0/",
    "primary_cat": "astro-ph.CO",
    "submitted_at": "2021-05-10T18:00:01Z",
    "title_canon_sha256": "20a4c5ef25724f29517b6f1bfbd758a9ee39312cbd819e3766446c9c1e017611"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2105.04562",
    "kind": "arxiv",
    "version": 1
  }
}