Pith Number

pith:7HYT6LU6

pith:2025:7HYT6LU6AWXB5473BEIMA7J2CX

not attested not anchored not stored refs pending

Periodic Variability of the Central Stars of Planetary Nebulae Surveyed through the Zwicky Transient Facility

Jifeng Liu, Pinjian Chen, Xiaodian Chen, Xuan Fang

arxiv:2501.06056 v1 · 2025-01-10 · astro-ph.SR · astro-ph.GA

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{7HYT6LU6AWXB5473BEIMA7J2CX}

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	2026-07-05T09:59:32.465171Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

f9f13f2e9e05ae1ef3fb0910c07d3a15f25da8412daaf907a6c7b99ce22ff51c

Aliases

arxiv: 2501.06056 · arxiv_version: 2501.06056v1 · doi: 10.48550/arxiv.2501.06056 · pith_short_12: 7HYT6LU6AWXB · pith_short_16: 7HYT6LU6AWXB5473 · pith_short_8: 7HYT6LU6

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/7HYT6LU6AWXB5473BEIMA7J2CX \
  | 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: f9f13f2e9e05ae1ef3fb0910c07d3a15f25da8412daaf907a6c7b99ce22ff51c

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "f30de7cee4eefd0ae2575cb2c162143cbaec7e993598d2f982ca0609d71f9471",
    "cross_cats_sorted": [
      "astro-ph.GA"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.SR",
    "submitted_at": "2025-01-10T15:35:33Z",
    "title_canon_sha256": "f51009c11ea9e4a9d9a6d4201fadaab08ea5ce450613df661b591dfee1c049ea"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2501.06056",
    "kind": "arxiv",
    "version": 1
  }
}