Pith Number

pith:7CZ4QOUV

pith:2017:7CZ4QOUV7URYU6PY5B2QD5YTNC

not attested not anchored not stored refs pending

Diffuse X-Ray Sky in the Galactic Center

Katsuji Koyama

arxiv:1708.05501 v1 · 2017-08-18 · 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{7CZ4QOUV7URYU6PY5B2QD5YTNC}

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	2026-05-18T00:37:49.906439Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

f8b3c83a95fd238a79f8e87501f7136886bd9394f58394a7b7271fe6f92817af

Aliases

arxiv: 1708.05501 · arxiv_version: 1708.05501v1 · doi: 10.48550/arxiv.1708.05501 · pith_short_12: 7CZ4QOUV7URY · pith_short_16: 7CZ4QOUV7URYU6PY · pith_short_8: 7CZ4QOUV

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/7CZ4QOUV7URYU6PY5B2QD5YTNC \
  | 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: f8b3c83a95fd238a79f8e87501f7136886bd9394f58394a7b7271fe6f92817af

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "c6e4c800b9147d770a8d340abe61a6149023f51ea425f56451919f4962e66d4e",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.HE",
    "submitted_at": "2017-08-18T03:50:25Z",
    "title_canon_sha256": "0a63224031a166b6fde9d8c49106e2bdbdc7d15c7e56fc76a598132b7c69a904"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1708.05501",
    "kind": "arxiv",
    "version": 1
  }
}