Pith Number

pith:EH7P67IT

pith:2021:EH7P67ITMFZNKHMFKRPSKFSW2L

not attested not anchored not stored refs pending

Supermassive black holes surrounded by dark matter modeled as anisotropic fluid: epicyclic oscillations and their fitting to observed QPOs

Jaroslav Vrba, Zden\v{e}k Stuchl\'ik

arxiv:2110.07411 v1 · 2021-10-14 · gr-qc

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{EH7P67ITMFZNKHMFKRPSKFSW2L}

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.

Cited by

1 paper in Pith

Astrophysical Signatures of Einstein-Skyrme Anti-de Sitter Black Holes: Epicyclic Frequencies and QPO Constraints

Receipt and verification

First computed	2026-07-05T03:38:38.108323Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

21feff7d136172d51d85545f251656d2c63c63a5dc903da18675fdd55bd14c16

Aliases

arxiv: 2110.07411 · arxiv_version: 2110.07411v1 · doi: 10.48550/arxiv.2110.07411 · pith_short_12: EH7P67ITMFZN · pith_short_16: EH7P67ITMFZNKHMF · pith_short_8: EH7P67IT

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/EH7P67ITMFZNKHMFKRPSKFSW2L \
  | 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: 21feff7d136172d51d85545f251656d2c63c63a5dc903da18675fdd55bd14c16

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "3de33f5a1a99099706580ae5d4b1a9a2f2cd51c21f9a7382f97f8c77ac597b0e",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "gr-qc",
    "submitted_at": "2021-10-14T14:42:43Z",
    "title_canon_sha256": "4fe21802894fb2e8d5f3af3c90ddf90ebb717ca070ed6016812116fae485fa6e"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2110.07411",
    "kind": "arxiv",
    "version": 1
  }
}