Pith Number

pith:Y6DCKSYE

pith:2019:Y6DCKSYEWZQVXHR4XNMD4ODE5S

not attested not anchored not stored refs pending

Periodic Q-mode modulation in PSR J1825$-$0935 (PSR B1822$-$09)

J. P. Yuan, K. J. Lee, N. Wang, R. N. Manchester, W. M. Yan, Z. G. Wen

arxiv:1903.01989 v1 · 2019-03-05 · 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{Y6DCKSYEWZQVXHR4XNMD4ODE5S}

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	2026-05-17T23:51:29.606168Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

c786254b04b6615b9e3cbb583e3864ec950748c40f1373ac0a91e17fa1bd9d66

Aliases

arxiv: 1903.01989 · arxiv_version: 1903.01989v1 · doi: 10.48550/arxiv.1903.01989 · pith_short_12: Y6DCKSYEWZQV · pith_short_16: Y6DCKSYEWZQVXHR4 · pith_short_8: Y6DCKSYE

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/Y6DCKSYEWZQVXHR4XNMD4ODE5S \
  | 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: c786254b04b6615b9e3cbb583e3864ec950748c40f1373ac0a91e17fa1bd9d66

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "c0ccc98c02f48d40f609d4559f4872cdbe2fec6b881d185aa950a8d82aada6d4",
    "cross_cats_sorted": [
      "astro-ph.SR"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.HE",
    "submitted_at": "2019-03-05T03:21:10Z",
    "title_canon_sha256": "098d0aa0a97f3a6936eadb2ca41716abe01c3a544157e44d8ad1000caa5bf192"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1903.01989",
    "kind": "arxiv",
    "version": 1
  }
}