Pith Number

pith:XG5R5F6E

pith:2017:XG5R5F6EANYFUVQGNQGY3ESLGL

not attested not anchored not stored refs pending

The broad band SEDs of four 'hypervariable' AGN

Alastair Bruce, Andy Lawrence, Chelsea L. MacLeod, Chris Done, James S. Collinson, Martin Elvis, Martin J. Ward, Philip J. Marshall, Suvi Gezari

arxiv:1711.07538 v1 · 2017-11-20 · 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{XG5R5F6EANYFUVQGNQGY3ESLGL}

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	2026-05-18T00:27:17.773162Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

b9bb1e97c403705a56066c0d8d924b32f0a77a131b06896a6b67dd14e3a8b5b6

Aliases

arxiv: 1711.07538 · arxiv_version: 1711.07538v1 · doi: 10.48550/arxiv.1711.07538 · pith_short_12: XG5R5F6EANYF · pith_short_16: XG5R5F6EANYFUVQG · pith_short_8: XG5R5F6E

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/XG5R5F6EANYFUVQGNQGY3ESLGL \
  | 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: b9bb1e97c403705a56066c0d8d924b32f0a77a131b06896a6b67dd14e3a8b5b6

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "bc496cf16e2a21691fea4e8403fba04b32daf1d02891bc712794cd46aa5a7f0b",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.HE",
    "submitted_at": "2017-11-20T20:53:06Z",
    "title_canon_sha256": "c6dcf20091ab2e40a0de0b9354bf515e6f6e09d3610173da9afbc7651e08a883"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1711.07538",
    "kind": "arxiv",
    "version": 1
  }
}