Pith Number

pith:ITHUDQ72

pith:2022:ITHUDQ723GPB4NDKHRFRBVF7T2

not attested not anchored not stored refs pending

Recovery of black hole mass from a single quasinormal mode

Gunther Uhlmann, Yiran Wang

arxiv:2203.13749 v1 · 2022-03-25 · math.AP · 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{ITHUDQ723GPB4NDKHRFRBVF7T2}

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	2026-07-05T05:52:53.535584Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

44cf41c3fad99e1e346a3c4b10d4bf9ebbaf1464f86aec0dc7d3804f6029d703

Aliases

arxiv: 2203.13749 · arxiv_version: 2203.13749v1 · doi: 10.48550/arxiv.2203.13749 · pith_short_12: ITHUDQ723GPB · pith_short_16: ITHUDQ723GPB4NDK · pith_short_8: ITHUDQ72

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/ITHUDQ723GPB4NDKHRFRBVF7T2 \
  | 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: 44cf41c3fad99e1e346a3c4b10d4bf9ebbaf1464f86aec0dc7d3804f6029d703

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "adda4179369df2c5d853059fca3795981906d647937c2e327774a2e4830c9e17",
    "cross_cats_sorted": [
      "gr-qc"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.AP",
    "submitted_at": "2022-03-25T16:27:11Z",
    "title_canon_sha256": "06ff04ff7e8319657ad695ad74255957dcbcc938107713302682f0158c26a0a0"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2203.13749",
    "kind": "arxiv",
    "version": 1
  }
}