Pith Number

pith:W4BYXZEW

pith:2020:W4BYXZEW5Q2GG6BBEO2OUKIQHW

not attested not anchored not stored refs pending

A New Transient Ultraluminous X-ray Source in NGC 7090

A. C. Fabian, B. W. Grefenstette, D. J. Walton, D. Stern, F. A. Harrison, F. Furst, G. A. Rodriguez Castillo, G. B. Lansbury, G. L. Israel, H. Earnshaw, M. Bachetti, M. Brightman, M. Heida, M. J. Middleton, P. A. Evans, R. Salvaterra, S. Pike, T. P. Roberts, V. Rana, X. Song

arxiv:2011.08870 v2 · 2020-11-17 · 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{W4BYXZEW5Q2GG6BBEO2OUKIQHW}

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

Transient and Variable Ultra-luminous X-ray Sources in NGC 4552

Receipt and verification

First computed	2026-07-05T01:56:15.718480Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

b7038be496ec3463782123b4ea29103da7421d85c54d1d7a01328b435a979de0

Aliases

arxiv: 2011.08870 · arxiv_version: 2011.08870v2 · doi: 10.48550/arxiv.2011.08870 · pith_short_12: W4BYXZEW5Q2G · pith_short_16: W4BYXZEW5Q2GG6BB · pith_short_8: W4BYXZEW

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/W4BYXZEW5Q2GG6BBEO2OUKIQHW \
  | 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: b7038be496ec3463782123b4ea29103da7421d85c54d1d7a01328b435a979de0

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "7a122f3ad5e4698386f39e19ed624148e0104acd58fd13fe92d758de49a87363",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.HE",
    "submitted_at": "2020-11-17T19:00:06Z",
    "title_canon_sha256": "39a2e3ac1542fb27be773b7ec2193e6f5a06ab48858559ed24a8db095e02cf8a"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2011.08870",
    "kind": "arxiv",
    "version": 2
  }
}