Pith Number

pith:2L7THPCG

pith:2018:2L7THPCGDZUE25D62JSQHTOJ6B

not attested not anchored not stored refs pending

On a WKB formula for echoes

L. Sebastiani, L. Vanzo, S. Zerbini

arxiv:1808.06939 v4 · 2018-08-20 · 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{2L7THPCGDZUE25D62JSQHTOJ6B}

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

Testing the nature of dark compact objects: a status report

Receipt and verification

First computed	2026-07-05T00:17:24.783805Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

d2ff33bc461e684d747ed26503cdc9f0742315799895c2c3c0a992b9b05b9933

Aliases

arxiv: 1808.06939 · arxiv_version: 1808.06939v4 · doi: 10.48550/arxiv.1808.06939 · pith_short_12: 2L7THPCGDZUE · pith_short_16: 2L7THPCGDZUE25D6 · pith_short_8: 2L7THPCG

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/2L7THPCGDZUE25D62JSQHTOJ6B \
  | 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: d2ff33bc461e684d747ed26503cdc9f0742315799895c2c3c0a992b9b05b9933

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "91f675834fdfcee9dadbf0e3041887610711889f7a5d5e2a3025f00dcd34fc11",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "gr-qc",
    "submitted_at": "2018-08-20T08:41:23Z",
    "title_canon_sha256": "72a002b9d1d18e7facc353f07fea0aa13d9ad50b28f6ad0f641386c98af61682"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1808.06939",
    "kind": "arxiv",
    "version": 4
  }
}