Pith Number

pith:AGYWGJKM

pith:2021:AGYWGJKM3WQCHVPOYUJIRAGU3X

not attested not anchored not stored refs pending

Gravitational wave memory of the binary black hole events in GWTC-2

Xiaokai He, Xiaolin Liu, Zhi-Chao Zhao, Zhoujian Cao

arxiv:2111.13882 v1 · 2021-11-27 · 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{AGYWGJKM3WQCHVPOYUJIRAGU3X}

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	2026-07-05T03:35:36.834936Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

01b163254cdda023d5eec5128880d4dde6b4e2a5bc00a5e7b289a492a53ffcfa

Aliases

arxiv: 2111.13882 · arxiv_version: 2111.13882v1 · doi: 10.48550/arxiv.2111.13882 · pith_short_12: AGYWGJKM3WQC · pith_short_16: AGYWGJKM3WQCHVPO · pith_short_8: AGYWGJKM

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/AGYWGJKM3WQCHVPOYUJIRAGU3X \
  | 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: 01b163254cdda023d5eec5128880d4dde6b4e2a5bc00a5e7b289a492a53ffcfa

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "3cee9ae4e0693658d135f0d07f5ee2572d91499b72bb95d532f5ed013182a55b",
    "cross_cats_sorted": [],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "gr-qc",
    "submitted_at": "2021-11-27T12:38:51Z",
    "title_canon_sha256": "cb669586e63922ed63281ed565dcc2f3561044f8e0bcbc27b07d3b8d8f245fa4"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2111.13882",
    "kind": "arxiv",
    "version": 1
  }
}