Pith Number

pith:32SLLTXW

pith:2018:32SLLTXWCM3PJACICUYK65ZYCL

not attested not anchored not stored refs pending

Evolving optical polarisation of the black hole X-ray binary MAXI J1820+070

A. V. Berdyugin, A. Veledina, I. A. Kosenkov, J. J. E. Kajava, J. Poutanen, M. Kagitani, S. S. Tsygankov, S. V. Berdyugina, T. Sakanoi, V. Kravtsov, V. Piirola

arxiv:1808.09002 v2 · 2018-08-27 · 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{32SLLTXWCM3PJACICUYK65ZYCL}

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	2026-05-17T23:52:05.401425Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

dea4b5cef61336f480481530af773812ddea037371dce2dd33d219745c851e49

Aliases

arxiv: 1808.09002 · arxiv_version: 1808.09002v2 · doi: 10.48550/arxiv.1808.09002 · pith_short_12: 32SLLTXWCM3P · pith_short_16: 32SLLTXWCM3PJACI · pith_short_8: 32SLLTXW

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/32SLLTXWCM3PJACICUYK65ZYCL \
  | 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: dea4b5cef61336f480481530af773812ddea037371dce2dd33d219745c851e49

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "f428b16c2d8ab9af5c812be0cf0200ba36fa2a951a841618a1eb0839702bf1c1",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.HE",
    "submitted_at": "2018-08-27T19:10:41Z",
    "title_canon_sha256": "bf2883a5715f95865fa60246f4b590acd8889a6db32c54e7d0efc96ab94f0266"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1808.09002",
    "kind": "arxiv",
    "version": 2
  }
}