Pith Number

pith:VGPJOTMH

pith:2025:VGPJOTMHTTM3FCMVD7M6L4NWFH

not attested not anchored not stored refs pending

Testing General Relativity with Black Holes

Cosimo Bambi

arxiv:2508.12269 v2 · 2025-08-17 · 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{VGPJOTMHTTM3FCMVD7M6L4NWFH}

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	2026-07-16T01:22:26.719733Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

a99e974d879cd9b289951fd9e5f1b629eab7315572ca679f1a28c89686c52d41

Aliases

arxiv: 2508.12269 · arxiv_version: 2508.12269v2 · doi: 10.48550/arxiv.2508.12269 · pith_short_12: VGPJOTMHTTM3 · pith_short_16: VGPJOTMHTTM3FCMV · pith_short_8: VGPJOTMH

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/VGPJOTMHTTM3FCMVD7M6L4NWFH \
  | 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: a99e974d879cd9b289951fd9e5f1b629eab7315572ca679f1a28c89686c52d41

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "111de199393c9b5f2c8a33f8271fb49d69b186c8647c9c6f86334371df5d3a0e",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "gr-qc",
    "submitted_at": "2025-08-17T07:36:01Z",
    "title_canon_sha256": "eca27ccb8b51d0c4ced1ab0f259e4c6a0a0ec0524f4ef868c921a82977ed7540"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2508.12269",
    "kind": "arxiv",
    "version": 2
  }
}