Pith Number

pith:IYDWK4H2

pith:2025:IYDWK4H2WLEZM7P5GM3NLOCBPK

not attested not anchored not stored refs pending

Redshifts of Objects near 3C 220.3

Belinda J. Wilkes, S\'oley \'O. Hyman, S.P. Willner

arxiv:2505.21613 v1 · 2025-05-27 · 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{IYDWK4H2WLEZM7P5GM3NLOCBPK}

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	2026-07-05T11:16:59.075192Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

46076570fab2c9967dfd3336d5b8417aa4add47d6bd85da3db07a50f61fb769c

Aliases

arxiv: 2505.21613 · arxiv_version: 2505.21613v1 · doi: 10.48550/arxiv.2505.21613 · pith_short_12: IYDWK4H2WLEZ · pith_short_16: IYDWK4H2WLEZM7P5 · pith_short_8: IYDWK4H2

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/IYDWK4H2WLEZM7P5GM3NLOCBPK \
  | 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: 46076570fab2c9967dfd3336d5b8417aa4add47d6bd85da3db07a50f61fb769c

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "29f35e53f76deea59405b37f31532bd37663e390ad71c85133f44794c13523de",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.GA",
    "submitted_at": "2025-05-27T18:00:01Z",
    "title_canon_sha256": "ef4aa9d03cb16eaa9855c64ad800d1975e6b1a9bfbf8e599944128f5c0f69603"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2505.21613",
    "kind": "arxiv",
    "version": 1
  }
}