Pith Number

pith:XX5PM3IU

pith:2012:XX5PM3IUY3F5F7WALZAXAWIZPF

not attested not anchored not stored refs pending

Andromeda and its satellites - a kinematic perspective

Michelle L. M. Collins, R. Michael Rich, Scott C. Chapman

arxiv:1201.1989 v2 · 2012-01-10 · astro-ph.CO · 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{XX5PM3IUY3F5F7WALZAXAWIZPF}

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	2026-05-18T04:04:32.762930Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

bdfaf66d14c6cbd2fec05e41705919797952ccaade6fbc869386163f4736be33

Aliases

arxiv: 1201.1989 · arxiv_version: 1201.1989v2 · doi: 10.48550/arxiv.1201.1989 · pith_short_12: XX5PM3IUY3F5 · pith_short_16: XX5PM3IUY3F5F7WA · pith_short_8: XX5PM3IU

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/XX5PM3IUY3F5F7WALZAXAWIZPF \
  | 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: bdfaf66d14c6cbd2fec05e41705919797952ccaade6fbc869386163f4736be33

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "4ac1acf7ba066b4d7385a9d89d2f982cee8a879ae5747f1d4fca754be3f2cc95",
    "cross_cats_sorted": [
      "astro-ph.GA"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.CO",
    "submitted_at": "2012-01-10T08:53:36Z",
    "title_canon_sha256": "aa777b5995af7b54784922bf5990e3039fcf5dc44afd54e0735088c3be6d8986"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1201.1989",
    "kind": "arxiv",
    "version": 2
  }
}