Pith Number

pith:BUMMVXQB

pith:2012:BUMMVXQBD7NTUQCNPC76EUJRN4

not attested not anchored not stored refs pending

Eccentric disc instability in stellar discs formed from inspiraling gas clouds in the Galactic Centre

Alessia Gualandris, Hagai B. Perets, Michela Mapelli

arxiv:1209.3021 v1 · 2012-09-13 · astro-ph.GA

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{BUMMVXQBD7NTUQCNPC76EUJRN4}

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	2026-05-18T01:54:29.273737Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

0d18cade011fdb3a404d78bfe251316f2092492d5fc1310b59e58a21c603ba59

Aliases

arxiv: 1209.3021 · arxiv_version: 1209.3021v1 · doi: 10.48550/arxiv.1209.3021 · pith_short_12: BUMMVXQBD7NT · pith_short_16: BUMMVXQBD7NTUQCN · pith_short_8: BUMMVXQB

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/BUMMVXQBD7NTUQCNPC76EUJRN4 \
  | 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: 0d18cade011fdb3a404d78bfe251316f2092492d5fc1310b59e58a21c603ba59

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "457f66d93938d41e9b75df9ae8d4f48dff81f698de94bda00421c36a94dd7253",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.GA",
    "submitted_at": "2012-09-13T20:00:06Z",
    "title_canon_sha256": "1a20d37de484d62a76968f48691efd2a057403f38aac9dd06bb2c4c644d90e01"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1209.3021",
    "kind": "arxiv",
    "version": 1
  }
}