Pith Number

pith:73I5OK4X

pith:2019:73I5OK4XAUZEN4F3NOLLL3VYCR

not attested not anchored not stored refs pending

XMM-Newton observations of the symbiotic recurrent nova T CrB: evolution of X-ray emission during the active phase

Svetozar A. Zhekov, Toma V. Tomov

arxiv:1908.07722 v1 · 2019-08-21 · 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{73I5OK4XAUZEN4F3NOLLL3VYCR}

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	2026-07-05T00:06:54.491183Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

fed1d72b97053246f0bb6b96b5eeb8147588453737a73e2f7713685a5df1482f

Aliases

arxiv: 1908.07722 · arxiv_version: 1908.07722v1 · doi: 10.48550/arxiv.1908.07722 · pith_short_12: 73I5OK4XAUZE · pith_short_16: 73I5OK4XAUZEN4F3 · pith_short_8: 73I5OK4X

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/73I5OK4XAUZEN4F3NOLLL3VYCR \
  | 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: fed1d72b97053246f0bb6b96b5eeb8147588453737a73e2f7713685a5df1482f

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "8ecbb5adc3b08173672e36794f3093c9a0f778537f710ccb7de69eabfb5d991a",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.HE",
    "submitted_at": "2019-08-21T06:57:41Z",
    "title_canon_sha256": "b9e9f15811c14cad11dad9d48df0fc7f4424b9619bc2ea121c63561084249f43"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1908.07722",
    "kind": "arxiv",
    "version": 1
  }
}