Pith Number

pith:ACAJ4QCA

pith:2022:ACAJ4QCAJRLD3IR6MS7LSO7U7I

not attested not anchored not stored refs pending

A Giant Arc on the Sky

Alexia M. Lopez, Gerard M. Williger, Roger G. Clowes

arxiv:2201.06875 v2 · 2022-01-18 · 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{ACAJ4QCAJRLD3IR6MS7LSO7U7I}

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 Giant Ring on the sky

Receipt and verification

First computed	2026-07-05T04:48:41.178224Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

00809e40404c563da23e64beb93bf4fa31daca902bfdaae4af6e5221a1979216

Aliases

arxiv: 2201.06875 · arxiv_version: 2201.06875v2 · doi: 10.48550/arxiv.2201.06875 · pith_short_12: ACAJ4QCAJRLD · pith_short_16: ACAJ4QCAJRLD3IR6 · pith_short_8: ACAJ4QCA

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/ACAJ4QCAJRLD3IR6MS7LSO7U7I \
  | 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: 00809e40404c563da23e64beb93bf4fa31daca902bfdaae4af6e5221a1979216

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "4e232be1b4009c62686ad43975d42eb28b9bfe01504ba926832847ff53df46fc",
    "cross_cats_sorted": [],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "astro-ph.CO",
    "submitted_at": "2022-01-18T11:06:33Z",
    "title_canon_sha256": "1dc662bd301f685aba820e44e7622ab9977f647fd7ef83bb05b6dd20cb3c04d4"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2201.06875",
    "kind": "arxiv",
    "version": 2
  }
}