Pith Number

pith:EGG2NUFA

pith:2017:EGG2NUFAH6632UYFWVINZOCJLS

not attested not anchored not stored refs pending

Discovery of periodic dips in the brightest hard X-ray source of M31 with EXTraS

A. Belfiore, A. De Luca, A. Paizis, A. Tiengo, D. D'Agostino, D. Salvetti, F. Haberl, G. Israel, L. Saronni, L. Sidoli, M. Marelli, R. Salvaterra

arxiv:1711.05540 v1 · 2017-11-15 · 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{EGG2NUFAH6632UYFWVINZOCJLS}

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	2026-05-18T00:27:17.954808Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

218da6d0a03fbdbd5305b550dcb8495cbfbb6924ec89ba6dd59c911d9f042696

Aliases

arxiv: 1711.05540 · arxiv_version: 1711.05540v1 · doi: 10.48550/arxiv.1711.05540 · pith_short_12: EGG2NUFAH663 · pith_short_16: EGG2NUFAH6632UYF · pith_short_8: EGG2NUFA

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/EGG2NUFAH6632UYFWVINZOCJLS \
  | 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: 218da6d0a03fbdbd5305b550dcb8495cbfbb6924ec89ba6dd59c911d9f042696

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "113b7145fea605c13a873c186fce514bf0ab2cc4ac14fad8a163923aebe4e7ad",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.HE",
    "submitted_at": "2017-11-15T12:46:01Z",
    "title_canon_sha256": "3eeac709e17080c3a2690e55e6a719c5d8767c68570cb2a5f638fc67529cce47"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1711.05540",
    "kind": "arxiv",
    "version": 1
  }
}