Pith Number

pith:HWZWHBDY

pith:2015:HWZWHBDYULIPAC2RZ7XRD2DLZD

not attested not anchored not stored refs pending

The non standard evolution of the Compton corona in the three 2006-2010 subsequent outbursts of the Black Hole Candidate 4U 1630-47

Bologna, Carlo Ferrigno (ISDC-Versoix, Fiamma Capitanio (IAPS-INAF, Giovanni De Cesare (IASF-INAF, Italy), Riccardo Campana (IASF-INAF, Rome, Switzerland)

arxiv:1507.02941 v1 · 2015-07-10 · 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{HWZWHBDYULIPAC2RZ7XRD2DLZD}

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	2026-05-18T01:37:02.871953Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

3db3638478a2d0f00b51cfef11e86bc8c38ef6dc4708ef0f1aedf3184517a62b

Aliases

arxiv: 1507.02941 · arxiv_version: 1507.02941v1 · doi: 10.48550/arxiv.1507.02941 · pith_short_12: HWZWHBDYULIP · pith_short_16: HWZWHBDYULIPAC2R · pith_short_8: HWZWHBDY

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/HWZWHBDYULIPAC2RZ7XRD2DLZD \
  | 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: 3db3638478a2d0f00b51cfef11e86bc8c38ef6dc4708ef0f1aedf3184517a62b

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "2b89dc75467099302312d81879a974375f2de127155eca13f00e858862d2ee49",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.HE",
    "submitted_at": "2015-07-10T15:36:09Z",
    "title_canon_sha256": "048442777ae927cbac2b9f16b159f6f3e319996b04b922f6f8a04a5458233417"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1507.02941",
    "kind": "arxiv",
    "version": 1
  }
}