Pith Number

pith:CUOD6VKF

pith:2017:CUOD6VKFCGMF6EFBYQ5SSUQDDH

not attested not anchored not stored refs pending

Discovery of optical flickering from the symbiotic star EF Aquilae

A. Antonova, B. Petrov, G. Y. Latev, J. Marti, K. A. Stoyanov, M. F. Bode, R. Bachev, R. K. Zamanov, S. Boeva, T. Tomov, V. A. Popov, Y. M. Nikolov

arxiv:1702.08243 v1 · 2017-02-27 · 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{CUOD6VKFCGMF6EFBYQ5SSUQDDH}

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	2026-05-18T00:35:59.307223Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

151c3f554511985f10a1c43b29520319edb8ff243fb926fe04a3ccafd38b80fd

Aliases

arxiv: 1702.08243 · arxiv_version: 1702.08243v1 · doi: 10.48550/arxiv.1702.08243 · pith_short_12: CUOD6VKFCGMF · pith_short_16: CUOD6VKFCGMF6EFB · pith_short_8: CUOD6VKF

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/CUOD6VKFCGMF6EFBYQ5SSUQDDH \
  | 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: 151c3f554511985f10a1c43b29520319edb8ff243fb926fe04a3ccafd38b80fd

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "719983ef448c326d4a2bf56593126241cc5727ac1777fbb18f7cb7c36a43d78a",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.SR",
    "submitted_at": "2017-02-27T11:36:38Z",
    "title_canon_sha256": "7d81eadefdd33031aa1eb94ae9f8a01fa649118c418251cc89344308ec326f24"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1702.08243",
    "kind": "arxiv",
    "version": 1
  }
}