Pith Number

pith:L6GRKGR4

pith:2015:L6GRKGR4BAXQGAH6O5IKALGZ62

not attested not anchored not stored refs pending

The largest Swift AGN monitoring campaign: UV/optical variability in NGC 5548

D. Emmanoulopoulos, D.T. Cameron, E. Breedt, I.M. McHardy, J. Gelbord, P. Arevalo, P. Lira, P. Uttley, S.D. Connolly, T. Dwelly

arxiv:1502.07502 v1 · 2015-02-26 · 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{L6GRKGR4BAXQGAH6O5IKALGZ62}

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	2026-05-18T02:26:03.503530Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

5f8d151a3c082f0300fe7750a02cd9f691d34ed739fba8a715eb0978e5a2a4d4

Aliases

arxiv: 1502.07502 · arxiv_version: 1502.07502v1 · doi: 10.48550/arxiv.1502.07502 · pith_short_12: L6GRKGR4BAXQ · pith_short_16: L6GRKGR4BAXQGAH6 · pith_short_8: L6GRKGR4

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/L6GRKGR4BAXQGAH6O5IKALGZ62 \
  | 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: 5f8d151a3c082f0300fe7750a02cd9f691d34ed739fba8a715eb0978e5a2a4d4

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "aa74b6c897c38c40371f0ffcc67f6b8fd270cb8e22d08e9f3cef3ee0cadd924a",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.HE",
    "submitted_at": "2015-02-26T11:00:52Z",
    "title_canon_sha256": "84ba0c4182ca1dc9344f6b26d5fc200d89cfe656cc2487fb584605578a69bba5"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1502.07502",
    "kind": "arxiv",
    "version": 1
  }
}