Pith Number

pith:2W3GWEPF

pith:2021:2W3GWEPFGBQ2MLXISZ4SHSE7FM

not attested not anchored not stored refs pending

Detecting the intrinsic X-ray emission from the O-type donor star and the residual accretion in a Supergiant Fast X-ray Transient during its faintest state

A. De Luca, K. Postnov, L. Oskinova, L. Sidoli, M. Marelli, P. Esposito, R. Salvaterra

arxiv:2106.14909 v1 · 2021-06-28 · astro-ph.HE · astro-ph.SR

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{2W3GWEPFGBQ2MLXISZ4SHSE7FM}

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	2026-07-05T03:25:59.223615Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

d5b66b11e53061a62ee8967923c89f2b2df23622acdee1170405ab6834f1bacc

Aliases

arxiv: 2106.14909 · arxiv_version: 2106.14909v1 · doi: 10.48550/arxiv.2106.14909 · pith_short_12: 2W3GWEPFGBQ2 · pith_short_16: 2W3GWEPFGBQ2MLXI · pith_short_8: 2W3GWEPF

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/2W3GWEPFGBQ2MLXISZ4SHSE7FM \
  | 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: d5b66b11e53061a62ee8967923c89f2b2df23622acdee1170405ab6834f1bacc

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "0b340c5a749e8f1770d57785223a4c7404502bcf987493bb2a44280978691fb5",
    "cross_cats_sorted": [
      "astro-ph.SR"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.HE",
    "submitted_at": "2021-06-28T18:00:13Z",
    "title_canon_sha256": "5fad31c146313a9ed48910d578f2b957fdf173df789b25b41db8dd29443b32a2"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2106.14909",
    "kind": "arxiv",
    "version": 1
  }
}