Pith Number

pith:7IFLSRDU

pith:2019:7IFLSRDUVDO5VIAGYVQ3EZO3YY

not attested not anchored not stored refs pending

Timing of PSR J2055+3829, an eclipsing black widow pulsar discovered with the Nan\c{c}ay Radio Telescope

D. A. Smith, F. Octau, G. Desvignes, G. Theureau, I. Cognard, L. Guillemot, P. C. C. Freire, T. H. Burnett

arxiv:1907.09778 v1 · 2019-07-23 · astro-ph.HE · astro-ph.SR

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{7IFLSRDUVDO5VIAGYVQ3EZO3YY}

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.

Cited by

1 paper in Pith

Optical detection of the black widow binary PSR J2052+1219

Receipt and verification

First computed	2026-07-05T00:03:50.286335Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

fa0ab94474a8dddaa006c561b265dbc614320c52cbcf0f20f2c84528926225a3

Aliases

arxiv: 1907.09778 · arxiv_version: 1907.09778v1 · doi: 10.48550/arxiv.1907.09778 · pith_short_12: 7IFLSRDUVDO5 · pith_short_16: 7IFLSRDUVDO5VIAG · pith_short_8: 7IFLSRDU

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/7IFLSRDUVDO5VIAGYVQ3EZO3YY \
  | 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: fa0ab94474a8dddaa006c561b265dbc614320c52cbcf0f20f2c84528926225a3

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "c37bf926bf8c6ce757151097019f39610bbdf65b930fdec1f6ca38e3e04769cb",
    "cross_cats_sorted": [
      "astro-ph.SR"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.HE",
    "submitted_at": "2019-07-23T09:16:00Z",
    "title_canon_sha256": "57c128816a6ee6edea9a54ab6bedd05263e120dc122d6a07f627e8c448487dda"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1907.09778",
    "kind": "arxiv",
    "version": 1
  }
}