Pith Number

pith:DHWLB5OJ

pith:2019:DHWLB5OJ2NY4JAYG47TUU6GVWR

not attested not anchored not stored refs pending

What GW170729's exceptional mass and spin tells us about its family tree

Chase Kimball, Christopher P L Berry, Vicky Kalogera

arxiv:1903.07813 v2 · 2019-03-19 · astro-ph.HE · gr-qc

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{DHWLB5OJ2NY4JAYG47TUU6GVWR}

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-2.1: Deep Extended Catalog of Compact Binary Coalescences Observed by LIGO and Virgo During the First Half of the Third Observing Run

Receipt and verification

First computed	2026-07-05T01:47:53.832825Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

19ecb0f5c9d371c48306e7e74a78d5b47dd23c816437a621e409c1fa1120974d

Aliases

arxiv: 1903.07813 · arxiv_version: 1903.07813v2 · doi: 10.48550/arxiv.1903.07813 · pith_short_12: DHWLB5OJ2NY4 · pith_short_16: DHWLB5OJ2NY4JAYG · pith_short_8: DHWLB5OJ

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/DHWLB5OJ2NY4JAYG47TUU6GVWR \
  | 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: 19ecb0f5c9d371c48306e7e74a78d5b47dd23c816437a621e409c1fa1120974d

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "c5a47931b789e7034db5fd21f83ca60d0881a6e68f8aaf3dfda36d3f3d48f783",
    "cross_cats_sorted": [
      "gr-qc"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.HE",
    "submitted_at": "2019-03-19T03:48:02Z",
    "title_canon_sha256": "3fd6aca8d4d6f12558f3b397c07b7e2ab3472828e3e812e65e4e04a62b595fb9"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1903.07813",
    "kind": "arxiv",
    "version": 2
  }
}