Pith Number

pith:DDXWIY3T

pith:2020:DDXWIY3T4NYTFMFZRTSQGLP4UK

not attested not anchored not stored refs pending

The flaring X-ray corona in the quasar PDS 456

Andrew Lobban, Delphine Porquet, Emanuele Nardini, Gabriele Matzeu, James Reeves, Valentina Braito

arxiv:2010.14295 v1 · 2020-10-27 · astro-ph.HE · 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{DDXWIY3T4NYTFMFZRTSQGLP4UK}

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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.

Cited by

1 paper in Pith

Structured ionized winds shooting out from a quasar at relativistic speeds

Receipt and verification

First computed	2026-07-05T01:50:37.164757Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

18ef646373e37132b0b98ce5032dfca2af6da8b919c9313b4c53f6e5dac86925

Aliases

arxiv: 2010.14295 · arxiv_version: 2010.14295v1 · doi: 10.48550/arxiv.2010.14295 · pith_short_12: DDXWIY3T4NYT · pith_short_16: DDXWIY3T4NYTFMFZ · pith_short_8: DDXWIY3T

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/DDXWIY3T4NYTFMFZRTSQGLP4UK \
  | 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: 18ef646373e37132b0b98ce5032dfca2af6da8b919c9313b4c53f6e5dac86925

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "a1c5be61ef83482fd707f99628b7b78b471961a7085bcec656f817e374c5e887",
    "cross_cats_sorted": [
      "astro-ph.GA"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.HE",
    "submitted_at": "2020-10-27T13:52:45Z",
    "title_canon_sha256": "fd286d431237175bb8ddd78659b3f778dd139ddbd4fe271f89a17fb35b919eef"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2010.14295",
    "kind": "arxiv",
    "version": 1
  }
}