Pith Number

pith:S5QXE2UV

pith:2020:S5QXE2UVQDZBID2OYMKHWGV3FY

not attested not anchored not stored refs pending

Observing an intermediate mass black hole GW190521 with minimal assumptions

Brendan O'Brien, Claudia Lazzaro, Edoardo Milotti, Francesco Salemi, Gabriele Vedovato, Giovanni Prodi, Guenakh Mitselmakher, Imre Bartos, Marco Drago, Marek Szczepanczyk, Sergey Klimenko, Shubhanshu Tiwari, V. Gayathri

arxiv:2009.11336 v1 · 2020-09-23 · 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{S5QXE2UVQDZBID2OYMKHWGV3FY}

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

GWTC-2: Compact Binary Coalescences Observed by LIGO and Virgo During the First Half of the Third Observing Run

Receipt and verification

First computed	2026-07-05T02:37:29.740026Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

9761726a9580f2140f4ec3147b1abb2e2082458603424da0b936f6cf6c9c7094

Aliases

arxiv: 2009.11336 · arxiv_version: 2009.11336v1 · doi: 10.48550/arxiv.2009.11336 · pith_short_12: S5QXE2UVQDZB · pith_short_16: S5QXE2UVQDZBID2O · pith_short_8: S5QXE2UV

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/S5QXE2UVQDZBID2OYMKHWGV3FY \
  | 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: 9761726a9580f2140f4ec3147b1abb2e2082458603424da0b936f6cf6c9c7094

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "7ef19755c6e281c5268f68b150dab5d4b8fb755f1f1a269501691612046c6c4a",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.HE",
    "submitted_at": "2020-09-23T18:44:19Z",
    "title_canon_sha256": "6ff54d55a12d7297801158bb883fd5137cc6058188d2a29b66adb2c07c83a006"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2009.11336",
    "kind": "arxiv",
    "version": 1
  }
}