Pith Number

pith:2VX6MD5Y

pith:2009:2VX6MD5YCKWXMROUBGFMSSJ66N

not attested not anchored not stored refs pending

Transonicity in black hole accretion -- A mathematical study using the generalized Sturm chains

Rukmini Dey, Shilpi Agarwal, Tapas K. Das

arxiv:0907.4754 v2 · 2009-07-27 · 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{2VX6MD5YCKWXMROUBGFMSSJ66N}

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	2026-05-18T04:02:37.980088Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

d56fe60fb812ad7645d4098ac9493ef37bd705eb3532b581917d4b9c5a0179b0

Aliases

arxiv: 0907.4754 · arxiv_version: 0907.4754v2 · doi: 10.48550/arxiv.0907.4754 · pith_short_12: 2VX6MD5YCKWX · pith_short_16: 2VX6MD5YCKWXMROU · pith_short_8: 2VX6MD5Y

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/2VX6MD5YCKWXMROUBGFMSSJ66N \
  | 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: d56fe60fb812ad7645d4098ac9493ef37bd705eb3532b581917d4b9c5a0179b0

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "93c5e0283a74ac0b96e4762d13ff394c0fa5b475203e6113ffd83d1f26f9dab8",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.HE",
    "submitted_at": "2009-07-27T20:04:14Z",
    "title_canon_sha256": "d8f7e991b0242495fdc5f590207cf21c9dab712d1031179e52e06ee09badf68d"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0907.4754",
    "kind": "arxiv",
    "version": 2
  }
}