Pith Number

pith:QDUFLXII

pith:2023:QDUFLXIICDPWTTFXNB2AYQCGNZ

not attested not anchored not stored refs pending

Supersonic friction of a black hole traversing a self-interacting scalar dark matter cloud

Alexis Boudon, Patrick Valageas, Philippe Brax

arxiv:2307.15391 v2 · 2023-07-28 · astro-ph.CO · astro-ph.GA · gr-qc · hep-th

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{QDUFLXIICDPWTTFXNB2AYQCGNZ}

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	2026-07-05T11:45:12.729464Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

80e855dd0810df69ccb768740c40466e5262747d685a81fc59d9ab4c9c161377

Aliases

arxiv: 2307.15391 · arxiv_version: 2307.15391v2 · doi: 10.48550/arxiv.2307.15391 · pith_short_12: QDUFLXIICDPW · pith_short_16: QDUFLXIICDPWTTFX · pith_short_8: QDUFLXII

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/QDUFLXIICDPWTTFXNB2AYQCGNZ \
  | 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: 80e855dd0810df69ccb768740c40466e5262747d685a81fc59d9ab4c9c161377

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "621553829e6be46c64ed86b2140c5da9202b250bf9718267dfa4643cab530c60",
    "cross_cats_sorted": [
      "astro-ph.GA",
      "gr-qc",
      "hep-th"
    ],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "astro-ph.CO",
    "submitted_at": "2023-07-28T08:37:55Z",
    "title_canon_sha256": "5a1a83568a398703601c29cd33fa73b2c26f833228b874601a5b87fa711d4dd9"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2307.15391",
    "kind": "arxiv",
    "version": 2
  }
}