Pith Number

pith:Z23LR7E4

pith:2011:Z23LR7E47VIXMFL5VCBX4XDRFH

not attested not anchored not stored refs pending

The missing link: a low mass X-ray binary in M31 seen as an ultraluminous X-ray source

Andrew D. Sutton, Chris Done, Floyd E. Jackson, Matthew J. Middleton, Timothy P. Roberts

arxiv:1111.1188 v1 · 2011-11-04 · astro-ph.HE

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{Z23LR7E47VIXMFL5VCBX4XDRFH}

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	2026-05-18T01:59:45.392553Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

ceb6b8fc9cfd5176157da8837e5c7129d5e2a3e0125fb5cb9517d445da3950e6

Aliases

arxiv: 1111.1188 · arxiv_version: 1111.1188v1 · doi: 10.48550/arxiv.1111.1188 · pith_short_12: Z23LR7E47VIX · pith_short_16: Z23LR7E47VIXMFL5 · pith_short_8: Z23LR7E4

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/Z23LR7E47VIXMFL5VCBX4XDRFH \
  | 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: ceb6b8fc9cfd5176157da8837e5c7129d5e2a3e0125fb5cb9517d445da3950e6

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "e6f965543c567d699f3eba38d0073aa4b3a5a4689403c1c5a2085257b02a277a",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.HE",
    "submitted_at": "2011-11-04T17:14:37Z",
    "title_canon_sha256": "0bc467d0ca7dcff0df7f97e586f227dd59ed77ce70538502e874273c46f4a0ab"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1111.1188",
    "kind": "arxiv",
    "version": 1
  }
}