Pith Number

pith:4URW4763

pith:2025:4URW4763HBW3YD7U6QEVR6NSUG

not attested not anchored not stored refs pending

Estimating infall times of galaxies around clusters: how accurately can it be done with observational data?

Haoran Dou, Heng Yu

arxiv:2505.17775 v1 · 2025-05-23 · 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{4URW4763HBW3YD7U6QEVR6NSUG}

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	2026-07-05T11:30:00.975967Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

e5236e7fdb386dbc0ff4f40958f9b2a1b88c6cdc3dfde7629a200e5cdfd1ae4d

Aliases

arxiv: 2505.17775 · arxiv_version: 2505.17775v1 · doi: 10.48550/arxiv.2505.17775 · pith_short_12: 4URW4763HBW3 · pith_short_16: 4URW4763HBW3YD7U · pith_short_8: 4URW4763

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/4URW4763HBW3YD7U6QEVR6NSUG \
  | 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: e5236e7fdb386dbc0ff4f40958f9b2a1b88c6cdc3dfde7629a200e5cdfd1ae4d

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "f16159948ddf6a2cfbde8545983c96d24c96681c55addb17d4d0d413924eb58c",
    "cross_cats_sorted": [],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "astro-ph.GA",
    "submitted_at": "2025-05-23T11:45:03Z",
    "title_canon_sha256": "d8d695dffb565d7fea42bebc4ecce50cacb9572b18ae871eb56b6d2164b1d0df"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2505.17775",
    "kind": "arxiv",
    "version": 1
  }
}