Pith Number

pith:IH2FMJZ3

pith:2021:IH2FMJZ3T2VUWA6Q2OKP2LVBZY

not attested not anchored not stored refs pending

Testing General Relativity with black hole X-ray data: recent progress and future developments

Cosimo Bambi

arxiv:2103.11365 v1 · 2021-03-21 · 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{IH2FMJZ3T2VUWA6Q2OKP2LVBZY}

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	2026-07-05T02:24:59.590211Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

41f456273b9eab4b03d0d394fd2ea1ce39cfacc63f2127228bb7a824157f22ec

Aliases

arxiv: 2103.11365 · arxiv_version: 2103.11365v1 · doi: 10.48550/arxiv.2103.11365 · pith_short_12: IH2FMJZ3T2VU · pith_short_16: IH2FMJZ3T2VUWA6Q · pith_short_8: IH2FMJZ3

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/IH2FMJZ3T2VUWA6Q2OKP2LVBZY \
  | 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: 41f456273b9eab4b03d0d394fd2ea1ce39cfacc63f2127228bb7a824157f22ec

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "64db9264acbcdab230966a6bc9996a9a3b327a7b20859724d40b285b72073a76",
    "cross_cats_sorted": [
      "astro-ph.HE"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "gr-qc",
    "submitted_at": "2021-03-21T11:28:01Z",
    "title_canon_sha256": "ba5d2e7dbbb84bc5fdca7b2058d0df19933f5c44ba704f557c3323223744235b"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2103.11365",
    "kind": "arxiv",
    "version": 1
  }
}