Pith Number

pith:AFXDRK27

pith:2012:AFXDRK27EKA7ZISPQNQA3HU23G

not attested not anchored not stored refs pending

Chandra Observation of a Weak Shock in the Galaxy Cluster A2556

Haiguang Xu, Jingying Wang, Junhua Gu, Xiang-Ping Wu, Yu Wang, Zhenzhen Qin

arxiv:1211.1134 v1 · 2012-11-06 · astro-ph.HE · astro-ph.CO · astro-ph.GA

Open paper page JSON Open Graph Bundle Merged state Verified badge What is a Pith Number?

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{AFXDRK27EKA7ZISPQNQA3HU23G}

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	2026-05-18T01:53:25.247615Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

016e38ab5f2281fca24f83600d9e9ad9ac4abe3b44969cd65aadcdc895deaa9b

Aliases

arxiv: 1211.1134 · arxiv_version: 1211.1134v1 · doi: 10.48550/arxiv.1211.1134 · pith_short_12: AFXDRK27EKA7 · pith_short_16: AFXDRK27EKA7ZISP · pith_short_8: AFXDRK27

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/AFXDRK27EKA7ZISPQNQA3HU23G \
  | 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: 016e38ab5f2281fca24f83600d9e9ad9ac4abe3b44969cd65aadcdc895deaa9b

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "48bab825528b4437365d6cd4e049ad43a0b1bd5079f9b1df1d11f85cb77ae068",
    "cross_cats_sorted": [
      "astro-ph.CO",
      "astro-ph.GA"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.HE",
    "submitted_at": "2012-11-06T08:09:27Z",
    "title_canon_sha256": "f5305b86057c5d7bfd7413fcf97bac9e4bc60c2496fa64e242781f75b610766c"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1211.1134",
    "kind": "arxiv",
    "version": 1
  }
}