Pith Number

pith:DEJDGN5A

pith:2017:DEJDGN5AIPFHWATU7TXU4XYTM5

not attested not anchored not stored refs pending

Multi-Band Intra-Night Optical Variability of BL Lacertae

Alok C. Gupta, A. Strigachev, E. Semkov, Haritma Gaur, M. F. Gu, Paul J. Wiita, R. Bachev, S. Ibryamov

arxiv:1712.02515 v1 · 2017-12-07 · astro-ph.HE

Open paper page JSON Open Graph Bundle Merged state Verified badge What is a Pith Number?

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{DEJDGN5AIPFHWATU7TXU4XYTM5}

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	2026-05-18T00:27:41.379389Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

19123337a043ca7b0274fcef4e5f13677b7fe27ec5039b5b10e0fdd65034ca8d

Aliases

arxiv: 1712.02515 · arxiv_version: 1712.02515v1 · doi: 10.48550/arxiv.1712.02515 · pith_short_12: DEJDGN5AIPFH · pith_short_16: DEJDGN5AIPFHWATU · pith_short_8: DEJDGN5A

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/DEJDGN5AIPFHWATU7TXU4XYTM5 \
  | 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: 19123337a043ca7b0274fcef4e5f13677b7fe27ec5039b5b10e0fdd65034ca8d

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "366004f0e3642ec88089f11e1721fabace4ca64e824c066187a9318a2324a9e7",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.HE",
    "submitted_at": "2017-12-07T07:15:22Z",
    "title_canon_sha256": "83f610d4e0091e6524adecaed65c4e48f281cdf4d2f06537181b622de95228d2"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1712.02515",
    "kind": "arxiv",
    "version": 1
  }
}