Pith Number

pith:PY7JIYA4

pith:2014:PY7JIYA4NFLUPTMBBYN4JDXVJM

not attested not anchored not stored refs pending

Long-term Optical Observations of the Be/X-ray Binary X Per

Hui Li, Jianeng Zhou, Jingzhi Yan, Qingzhong Liu (PMO)

arxiv:1408.3542 v3 · 2014-08-15 · 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{PY7JIYA4NFLUPTMBBYN4JDXVJM}

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	2026-05-18T02:38:52.835146Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

7e3e94601c695747cd810e1bc48ef54b30d17d4c328f8e93012c559988ffb0cf

Aliases

arxiv: 1408.3542 · arxiv_version: 1408.3542v3 · doi: 10.48550/arxiv.1408.3542 · pith_short_12: PY7JIYA4NFLU · pith_short_16: PY7JIYA4NFLUPTMB · pith_short_8: PY7JIYA4

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/PY7JIYA4NFLUPTMBBYN4JDXVJM \
  | 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: 7e3e94601c695747cd810e1bc48ef54b30d17d4c328f8e93012c559988ffb0cf

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "9b388d6ca77e6287670b6f26a0f37ff98a2e0411a570e8963098415a8b54234f",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.SR",
    "submitted_at": "2014-08-15T14:16:52Z",
    "title_canon_sha256": "fe32380c5ae76bd8247fb840c3cecc5cae05a0d1935bdfb8b2a566b6ddfe13c6"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1408.3542",
    "kind": "arxiv",
    "version": 3
  }
}