Pith Number

pith:7CSHA5CX

pith:2016:7CSHA5CX7JI4W4GQV6AUIVEPPY

not attested not anchored not stored refs pending

A note on periodicity of long-term variations of optical continuum in active galactic nuclei

Jian-Min Wang, Kai-Xing Lu, Shao-Lan Bi, Yan-Rong Li

arxiv:1604.00587 v1 · 2016-04-03 · astro-ph.GA · 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{7CSHA5CX7JI4W4GQV6AUIVEPPY}

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	2026-05-18T01:16:39.118760Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

f8a4707457fa51cb70d0af8144548f7e0700eff99f7a1f52a6072a3da1d0bf25

Aliases

arxiv: 1604.00587 · arxiv_version: 1604.00587v1 · doi: 10.48550/arxiv.1604.00587 · pith_short_12: 7CSHA5CX7JI4 · pith_short_16: 7CSHA5CX7JI4W4GQ · pith_short_8: 7CSHA5CX

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/7CSHA5CX7JI4W4GQV6AUIVEPPY \
  | 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: f8a4707457fa51cb70d0af8144548f7e0700eff99f7a1f52a6072a3da1d0bf25

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "ed73f2eaf955565289b17c1987c7b46518c952166f8743ef43ec82cddb8dbed5",
    "cross_cats_sorted": [
      "astro-ph.HE"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.GA",
    "submitted_at": "2016-04-03T03:04:33Z",
    "title_canon_sha256": "25a1223aa723ba6aa7bc5155ad27a038680200968b67d1c896705d3c0a877b0e"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1604.00587",
    "kind": "arxiv",
    "version": 1
  }
}