Pith Number

pith:EA2SXYAU

pith:2020:EA2SXYAUI6N4KOGSODOVXK6643

not attested not anchored not stored refs pending

A massive blow for $\Lambda$CDM $-$ the high redshift, mass, and collision velocity of the interacting galaxy cluster El Gordo contradicts concordance cosmology

E. Asencio, I. Banik, P. Kroupa

arxiv:2012.03950 v1 · 2020-12-07 · astro-ph.CO

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{EA2SXYAUI6N4KOGSODOVXK6643}

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	2026-07-05T02:02:08.098233Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

20352be014479bc538d270dd5babdee6c4e11c332a0cb3d8e8c67fbcaaf9f6ef

Aliases

arxiv: 2012.03950 · arxiv_version: 2012.03950v1 · doi: 10.48550/arxiv.2012.03950 · pith_short_12: EA2SXYAUI6N4 · pith_short_16: EA2SXYAUI6N4KOGS · pith_short_8: EA2SXYAU

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/EA2SXYAUI6N4KOGSODOVXK6643 \
  | 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: 20352be014479bc538d270dd5babdee6c4e11c332a0cb3d8e8c67fbcaaf9f6ef

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "66ad1a1bbaafa7bee83fbce29ecbad410115bfc0b94b154771a374a27c763e94",
    "cross_cats_sorted": [],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "astro-ph.CO",
    "submitted_at": "2020-12-07T19:00:01Z",
    "title_canon_sha256": "de96104f702ccf4cf453fe0a382f4345f0ed213a8313b7d724737f703f9b44de"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2012.03950",
    "kind": "arxiv",
    "version": 1
  }
}