Pith Number

pith:SNDAPXDY

pith:2013:SNDAPXDYFKUM75J7BVFD5XZFJN

not attested not anchored not stored refs pending

The fading of two transient ULXs to below the stellar mass Eddington limit

Christine Jones, Diana M. Worrall, Gregory R. Sivakoff, Mark Birkinshaw, Mark J. Burke, Martin J. Hardcastle, Nicola J. Brassington, Ralph P. Kraft, Roberto Soria, Somak Raychaudhury, Stephen S. Murray, Thomas J. Maccarone, William R. Forman

arxiv:1307.8157 v1 · 2013-07-30 · 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{SNDAPXDYFKUM75J7BVFD5XZFJN}

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	2026-05-18T01:48:32.490466Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

934607dc782aa8cff53f0d4a3edf254b7546273c606e509e9961e7ed5197e514

Aliases

arxiv: 1307.8157 · arxiv_version: 1307.8157v1 · doi: 10.48550/arxiv.1307.8157 · pith_short_12: SNDAPXDYFKUM · pith_short_16: SNDAPXDYFKUM75J7 · pith_short_8: SNDAPXDY

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/SNDAPXDYFKUM75J7BVFD5XZFJN \
  | 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: 934607dc782aa8cff53f0d4a3edf254b7546273c606e509e9961e7ed5197e514

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "712e665d32207f2112067eea735481ee727af75c0b878682f399f8cd679a3164",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.HE",
    "submitted_at": "2013-07-30T22:08:17Z",
    "title_canon_sha256": "6aaeaa1fc855059ee1d26610fa72e3c6d2780901889783025699809d98ff0fec"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1307.8157",
    "kind": "arxiv",
    "version": 1
  }
}