Pith Number

pith:YMNFEOUF

pith:2015:YMNFEOUFIGM5ZSUMIVH5XSTTAF

not attested not anchored not stored refs pending

Long-term multicolor photometry of the young stellar objects FHO 26, FHO 27, FHO 28, FHO 29 and V1929 Cygni

E. H. Semkov, S. I. Ibryamov, S. P. Peneva

arxiv:1504.06774 v1 · 2015-04-25 · 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{YMNFEOUFIGM5ZSUMIVH5XSTTAF}

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	2026-05-18T01:59:34.723478Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

c31a523a854199dcca8c454fdbca730174b7bd3b6e346e920ff33a30be53b18b

Aliases

arxiv: 1504.06774 · arxiv_version: 1504.06774v1 · doi: 10.48550/arxiv.1504.06774 · pith_short_12: YMNFEOUFIGM5 · pith_short_16: YMNFEOUFIGM5ZSUM · pith_short_8: YMNFEOUF

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/YMNFEOUFIGM5ZSUMIVH5XSTTAF \
  | 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: c31a523a854199dcca8c454fdbca730174b7bd3b6e346e920ff33a30be53b18b

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "512f69e73739dec11348fad780bc391719d4b81a329394c22f847ef922feb872",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.SR",
    "submitted_at": "2015-04-25T23:41:13Z",
    "title_canon_sha256": "853dea9b8ee9b56a8110262814000b32370788774d99288ec76fda751afdd5ab"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1504.06774",
    "kind": "arxiv",
    "version": 1
  }
}