Pith Number

pith:SPJW4O2N

pith:2014:SPJW4O2NTXZVXQEO6AD6Z5KGYK

not attested not anchored not stored refs pending

A long-term UBVRI photometric study of the pre-main sequence star V350 Cep

Evgeni Semkov, Stoyanka Peneva, Sunay Ibryamov

arxiv:1404.5902 v2 · 2014-04-23 · 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{SPJW4O2NTXZVXQEO6AD6Z5KGYK}

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

The Accretion Process on Protostars

Receipt and verification

First computed	2026-05-18T01:43:25.768242Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

93d36e3b4d9df35bc08ef007ecf546c28722527d0cbc986493b7418e2c4db106

Aliases

arxiv: 1404.5902 · arxiv_version: 1404.5902v2 · doi: 10.48550/arxiv.1404.5902 · pith_short_12: SPJW4O2NTXZV · pith_short_16: SPJW4O2NTXZVXQEO · pith_short_8: SPJW4O2N

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/SPJW4O2NTXZVXQEO6AD6Z5KGYK \
  | 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: 93d36e3b4d9df35bc08ef007ecf546c28722527d0cbc986493b7418e2c4db106

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "a1a9c7ae1b28a4c7b200e94212ded058811606515826eb7300f38c0098b581eb",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.SR",
    "submitted_at": "2014-04-23T17:23:05Z",
    "title_canon_sha256": "8ebbf556499af06f5709c3f48aab9795ae2c9370fde26b907518f67e4c144064"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1404.5902",
    "kind": "arxiv",
    "version": 2
  }
}