Pith Number

pith:6IJQ3QWU

pith:2019:6IJQ3QWUN3EOXGYHCZ2E437CDX

not attested not anchored not stored refs pending

Optical detection of the black widow binary PSR J2052+1219

A. Kirichenko, D. Zyuzin, J. S. Deneva, S. Zharikov, Yu. Shibanov

arxiv:1909.00483 v1 · 2019-09-01 · astro-ph.SR · 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{6IJQ3QWUN3EOXGYHCZ2E437CDX}

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	2026-07-05T00:08:38.674076Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

f2130dc2d46ec8eb9b0716744e6fe21de6857be06212ea53cf96c12dd1a0b5c1

Aliases

arxiv: 1909.00483 · arxiv_version: 1909.00483v1 · doi: 10.48550/arxiv.1909.00483 · pith_short_12: 6IJQ3QWUN3EO · pith_short_16: 6IJQ3QWUN3EOXGYH · pith_short_8: 6IJQ3QWU

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/6IJQ3QWUN3EOXGYHCZ2E437CDX \
  | 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: f2130dc2d46ec8eb9b0716744e6fe21de6857be06212ea53cf96c12dd1a0b5c1

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "5b42a9c90664f9299c71bbf1f1d11cbd6b5ef9ee566f77202b66426efa7e4d3e",
    "cross_cats_sorted": [
      "astro-ph.HE"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.SR",
    "submitted_at": "2019-09-01T23:11:16Z",
    "title_canon_sha256": "39f93910e593d9aa13ffc6db1301b59670a65b56f23bbc78c26c2c8de1d2116d"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1909.00483",
    "kind": "arxiv",
    "version": 1
  }
}