Pith Number

pith:OXH7KV6T

pith:2013:OXH7KV6TM5OKHEIKCSXCCYY36H

not attested not anchored not stored refs pending

The unusual photometric behavior of the new FUor star V2493 Cyg (HBC 722)

D Dimitrov, E. Semkov, S. Ibryamov, S. Peneva

arxiv:1310.5369 v1 · 2013-10-20 · 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{OXH7KV6TM5OKHEIKCSXCCYY36H}

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	2026-05-18T03:09:36.044381Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

75cff557d3675ca3910a14ae21631bf1e62048fea139bf58c7c78e6e0b57e701

Aliases

arxiv: 1310.5369 · arxiv_version: 1310.5369v1 · doi: 10.48550/arxiv.1310.5369 · pith_short_12: OXH7KV6TM5OK · pith_short_16: OXH7KV6TM5OKHEIK · pith_short_8: OXH7KV6T

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/OXH7KV6TM5OKHEIKCSXCCYY36H \
  | 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: 75cff557d3675ca3910a14ae21631bf1e62048fea139bf58c7c78e6e0b57e701

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "010f300c5ed53f90531b6556533a5ef4d7b8c3056bc208de39006c1320abd029",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.SR",
    "submitted_at": "2013-10-20T20:31:50Z",
    "title_canon_sha256": "3d06aca7543b018d10ffc1931d4bd89edc6f66bcc59bf30fd444e16c4330ae7d"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1310.5369",
    "kind": "arxiv",
    "version": 1
  }
}