Pith Number

pith:2WEOH4HT

pith:2020:2WEOH4HT6TSFMA7ISA46PU6VF6

not attested not anchored not stored refs pending

Probing the near-horizon region of Cygnus X-1 with Suzaku and NuSTAR

Askar B. Abdikamalov, Cosimo Bambi, Dimitry Ayzenberg, Honghui Liu, Menglei Zhou, Zuobin Zhang

arxiv:2012.01112 v2 · 2020-12-02 · astro-ph.HE · 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{2WEOH4HT6TSFMA7ISA46PU6VF6}

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	2026-07-05T02:10:41.249842Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

d588e3f0f3f4e45603e89039e7d3d52f95b2a9dd532e68955e5caa78eb6726bd

Aliases

arxiv: 2012.01112 · arxiv_version: 2012.01112v2 · doi: 10.48550/arxiv.2012.01112 · pith_short_12: 2WEOH4HT6TSF · pith_short_16: 2WEOH4HT6TSFMA7I · pith_short_8: 2WEOH4HT

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/2WEOH4HT6TSFMA7ISA46PU6VF6 \
  | 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: d588e3f0f3f4e45603e89039e7d3d52f95b2a9dd532e68955e5caa78eb6726bd

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "5ac62ec1864f3bb501de24266a5b8a573b07f20288281e7957256c097c79e49d",
    "cross_cats_sorted": [
      "gr-qc"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.HE",
    "submitted_at": "2020-12-02T12:02:00Z",
    "title_canon_sha256": "95427e0b00ce9b36de4665bd113f0c770f1b51b1fa4f3f841d6611733aa5415f"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2012.01112",
    "kind": "arxiv",
    "version": 2
  }
}