Pith Number

pith:PGO4TYMA

pith:2025:PGO4TYMALA3X6CM4QUKBD7ZKXN

not attested not anchored not stored refs pending

Line detections in photospheric radius expansion bursts from 4U 1820-303

C. Pinto, D. Barret, F. Barra, N. Weinberg, S. Guichandut, T. Di Salvo

arxiv:2501.01488 v1 · 2025-01-02 · 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{PGO4TYMALA3X6CM4QUKBD7ZKXN}

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	2026-07-05T10:16:18.786978Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

799dc9e18058377f099c851411ff2abb7a32b455ca415f1e1d8ec1fa2fc51c65

Aliases

arxiv: 2501.01488 · arxiv_version: 2501.01488v1 · doi: 10.48550/arxiv.2501.01488 · pith_short_12: PGO4TYMALA3X · pith_short_16: PGO4TYMALA3X6CM4 · pith_short_8: PGO4TYMA

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/PGO4TYMALA3X6CM4QUKBD7ZKXN \
  | 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: 799dc9e18058377f099c851411ff2abb7a32b455ca415f1e1d8ec1fa2fc51c65

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "e4a539c21a122d4853daf30389c36ac309fec10163bb24695644107bfc89b0e7",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.HE",
    "submitted_at": "2025-01-02T19:00:00Z",
    "title_canon_sha256": "78b020a11c632187416c575cb1bd22995154a2a1bbc049288604643678d473cc"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2501.01488",
    "kind": "arxiv",
    "version": 1
  }
}