Pith Number

pith:SRRXE3SO

pith:2009:SRRXE3SOIUAXC4N7KJEXY5KTO5

not attested not anchored not stored refs pending

On the Maximal Value of the Turbulent alpha-Parameter in Accretion Discs

N. I. Shakura, P. Abolmasov

arxiv:0905.3656 v1 · 2009-05-22 · astro-ph.HE

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{SRRXE3SOIUAXC4N7KJEXY5KTO5}

Prints a linked badge after your title and injects PDF metadata. Compiles on arXiv. Learn more

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	2026-05-18T02:13:38.030056Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

9463726e4e45017171bf52497c7553777db5d8add114afd5394620dd259e77e6

Aliases

arxiv: 0905.3656 · arxiv_version: 0905.3656v1 · doi: 10.48550/arxiv.0905.3656 · pith_short_12: SRRXE3SOIUAX · pith_short_16: SRRXE3SOIUAXC4N7 · pith_short_8: SRRXE3SO

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/SRRXE3SOIUAXC4N7KJEXY5KTO5 \
  | 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: 9463726e4e45017171bf52497c7553777db5d8add114afd5394620dd259e77e6

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "841baa183436dd54ed7dc71f08e9ca20f291f7a442191fef9336b7a35a1c4dea",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.HE",
    "submitted_at": "2009-05-22T10:41:04Z",
    "title_canon_sha256": "cd2348e60e5142c8ef5faa979f7278128ca19b3be66286d6240244a9d7a526d9"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0905.3656",
    "kind": "arxiv",
    "version": 1
  }
}