Pith Number

pith:X2WX7YJF

pith:2016:X2WX7YJFCRMI5XTRCZBRX74H4O

not attested not anchored not stored refs pending

Polarization and long-term variability of Sgr A* X-ray echo

E. Churazov, G. Ponti, I. Khabibullin, R. Sunyaev

arxiv:1612.00180 v2 · 2016-12-01 · 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{X2WX7YJFCRMI5XTRCZBRX74H4O}

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	2026-05-18T00:46:38.738046Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

bead7fe12514588ede7116431bff87e3addfea88c9d251ee20363ddcb3a682d2

Aliases

arxiv: 1612.00180 · arxiv_version: 1612.00180v2 · doi: 10.48550/arxiv.1612.00180 · pith_short_12: X2WX7YJFCRMI · pith_short_16: X2WX7YJFCRMI5XTR · pith_short_8: X2WX7YJF

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/X2WX7YJFCRMI5XTRCZBRX74H4O \
  | 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: bead7fe12514588ede7116431bff87e3addfea88c9d251ee20363ddcb3a682d2

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "29c44799d5e66c0e5b4ed18702a8d8a3254a4ef523d1cf41f6e8d58258984fee",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.HE",
    "submitted_at": "2016-12-01T09:01:27Z",
    "title_canon_sha256": "5e450943179946028682f9770e8506c6a3f69c69bac594ada217a64e275fa359"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1612.00180",
    "kind": "arxiv",
    "version": 2
  }
}