Pith Number

pith:GDFUMQEQ

pith:2015:GDFUMQEQN6PWT5WD35U2XVF5ZM

not attested not anchored not stored refs pending

The Extreme Ultraviolet Spectrum of the Kinetically Dominated Quasar 3C 270.1

Brian Punsly, Paola Marziani

arxiv:1507.01579 v2 · 2015-07-06 · astro-ph.GA

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{GDFUMQEQN6PWT5WD35U2XVF5ZM}

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	2026-05-18T01:36:27.231830Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

30cb4640906f9f69f6c3df69abd4bdcb38e51f399069bc82ba9359e0a57737ae

Aliases

arxiv: 1507.01579 · arxiv_version: 1507.01579v2 · doi: 10.48550/arxiv.1507.01579 · pith_short_12: GDFUMQEQN6PW · pith_short_16: GDFUMQEQN6PWT5WD · pith_short_8: GDFUMQEQ

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/GDFUMQEQN6PWT5WD35U2XVF5ZM \
  | 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: 30cb4640906f9f69f6c3df69abd4bdcb38e51f399069bc82ba9359e0a57737ae

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "d86f21e1157c158e32b7b364844b97911c4180386ccd195f4c2700297bbdcf61",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.GA",
    "submitted_at": "2015-07-06T19:49:52Z",
    "title_canon_sha256": "e7928798e344f0810c564bd09375c78e272ce4f089a0c71b4ffd72c4d5c2e1f1"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1507.01579",
    "kind": "arxiv",
    "version": 2
  }
}