pith. sign in
Pith Number

pith:YK4RIVK7

pith:2014:YK4RIVK7TPANHCMIM2M272LJXG
not attested not anchored not stored refs pending

Quasi-periodicities of PKS 2155-304

Aldo Treves, Angela Sandrinelli, Stefano Covino

arxiv:1408.0015 v1 · 2014-07-31 · astro-ph.HE · astro-ph.GA

Add to your LaTeX paper
\usepackage{pith}
\pithnumber{YK4RIVK7TPANHCMIM2M272LJXG}

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 2026-05-18T01:23:04.487119Z
Builder pith-number-builder-2026-05-17-v1
Signature Pith Ed25519 (pith-v1-2026-05) · public key
Schema pith-number/v1.0

Canonical hash

c2b914555f9bc0d389886699afe969b98668f867d8e3a902be1cb5877f900a04

Aliases

arxiv: 1408.0015 · arxiv_version: 1408.0015v1 · doi: 10.48550/arxiv.1408.0015 · pith_short_12: YK4RIVK7TPAN · pith_short_16: YK4RIVK7TPANHCMI · pith_short_8: YK4RIVK7
Agent API
Verify this Pith Number yourself
curl -sH 'Accept: application/ld+json' https://pith.science/pith/YK4RIVK7TPANHCMIM2M272LJXG \
  | 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: c2b914555f9bc0d389886699afe969b98668f867d8e3a902be1cb5877f900a04
Canonical record JSON
{
  "metadata": {
    "abstract_canon_sha256": "e5954c5b7500b98a5ab5ffd939998c3e9fa94d41f1bd6dd9f0c2499b429ed1e8",
    "cross_cats_sorted": [
      "astro-ph.GA"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.HE",
    "submitted_at": "2014-07-31T20:06:10Z",
    "title_canon_sha256": "f1683bae2f0d8342e3d20c19b97d0c78fda79eae45e30ba56f2ef0da87d6afda"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1408.0015",
    "kind": "arxiv",
    "version": 1
  }
}