Pith Number

pith:APLO65LG

pith:2016:APLO65LGRE6DKEEYP2HGEZJ34N

not attested not anchored not stored refs pending

The Extreme Ultraviolet Variability of Quasars

Brian Punsly, Christopher P. O'Dea, Paola Marziani, Shaohua Zhang, Sowgat Muzahid

arxiv:1608.02302 v1 · 2016-08-08 · astro-ph.GA · astro-ph.CO

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

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	2026-05-18T01:01:22.630869Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

03d6ef7566893c3510987e8e62653be37888fef6f9bf77c2ae19e4c5a3307f95

Aliases

arxiv: 1608.02302 · arxiv_version: 1608.02302v1 · doi: 10.48550/arxiv.1608.02302 · pith_short_12: APLO65LGRE6D · pith_short_16: APLO65LGRE6DKEEY · pith_short_8: APLO65LG

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/APLO65LGRE6DKEEYP2HGEZJ34N \
  | 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: 03d6ef7566893c3510987e8e62653be37888fef6f9bf77c2ae19e4c5a3307f95

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "cb550482c546770f1f1946c6469f7ffc94160cb5d2b515f91882bb12ec3402c9",
    "cross_cats_sorted": [
      "astro-ph.CO"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.GA",
    "submitted_at": "2016-08-08T03:18:07Z",
    "title_canon_sha256": "48c68b43f1698248945ee28d64eef3158706973529d44c038f095d82057846fc"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1608.02302",
    "kind": "arxiv",
    "version": 1
  }
}