Pith Number

pith:TW6X5DYO

pith:2021:TW6X5DYOKFGJ2NL6WAXRZOT5VL

not attested not anchored not stored refs pending

Gravitational wave echoes search with combs

Di Wu, Jing Ren

arxiv:2108.01820 v2 · 2021-08-04 · gr-qc · 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{TW6X5DYOKFGJ2NL6WAXRZOT5VL}

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	2026-07-05T03:40:41.506582Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

9dbd7e8f0e514c9d357eb02f1cba7daac6d6e6e61bb63787c07324a6cdf8301a

Aliases

arxiv: 2108.01820 · arxiv_version: 2108.01820v2 · doi: 10.48550/arxiv.2108.01820 · pith_short_12: TW6X5DYOKFGJ · pith_short_16: TW6X5DYOKFGJ2NL6 · pith_short_8: TW6X5DYO

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/TW6X5DYOKFGJ2NL6WAXRZOT5VL \
  | 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: 9dbd7e8f0e514c9d357eb02f1cba7daac6d6e6e61bb63787c07324a6cdf8301a

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "a469afdb6b3774f8e098d2dc19f9b05a5c3554c89bb985954490359ce78d4d25",
    "cross_cats_sorted": [
      "astro-ph.HE"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "gr-qc",
    "submitted_at": "2021-08-04T02:45:35Z",
    "title_canon_sha256": "724dd2209472eac8c8532dc8dc03c57428ffc88d67bfb97ec8d5127496590d06"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2108.01820",
    "kind": "arxiv",
    "version": 2
  }
}