Pith Number

pith:OLALIEKO

pith:1995:OLALIEKOF3I3LS7HD43CLOCYSF

not attested not anchored not stored refs pending

THE ABELL CLUSTER INERTIAL FRAME

Matthew Colless

arxiv:astro-ph/9502016 v1 · 1995-02-03 · astro-ph

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{OLALIEKOF3I3LS7HD43CLOCYSF}

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	2026-05-18T01:07:42.421696Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

72c0b4114e2ed1b5cbe71f3625b858915661490d532963de2d7c112e4da415c8

Aliases

arxiv: astro-ph/9502016 · arxiv_version: astro-ph/9502016v1 · doi: 10.48550/arxiv.astro-ph/9502016 · pith_short_12: OLALIEKOF3I3 · pith_short_16: OLALIEKOF3I3LS7H · pith_short_8: OLALIEKO

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/OLALIEKOF3I3LS7HD43CLOCYSF \
  | 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: 72c0b4114e2ed1b5cbe71f3625b858915661490d532963de2d7c112e4da415c8

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "24360e7f31e33e4571c388f04d819f9549e0ce43a71568cd4495401cd4c25434",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "1995-02-03T13:27:09Z",
    "title_canon_sha256": "aca2c4ccfc6de839b03824e995b09914f5dec48acefc7de9e89dc9680375ae67"
  },
  "schema_version": "1.0",
  "source": {
    "id": "astro-ph/9502016",
    "kind": "arxiv",
    "version": 1
  }
}