Pith Number

pith:XOPBNRGX

pith:2009:XOPBNRGXYNXSGLQPZFNDIKRSDI

not attested not anchored not stored refs pending

The Dependence of Spectral State Transition and Disk Truncation on Viscosity Parameter $\alpha

B.F. Liu, Erlin Qiao

arxiv:0901.0475 v1 · 2009-01-05 · 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{XOPBNRGXYNXSGLQPZFNDIKRSDI}

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	2026-05-18T02:15:03.351598Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

bb9e16c4d7c36f232e0fc95a342a321a2893ae0e88aac16bcbb2592c225cf82c

Aliases

arxiv: 0901.0475 · arxiv_version: 0901.0475v1 · doi: 10.48550/arxiv.0901.0475 · pith_short_12: XOPBNRGXYNXS · pith_short_16: XOPBNRGXYNXSGLQP · pith_short_8: XOPBNRGX

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/XOPBNRGXYNXSGLQPZFNDIKRSDI \
  | 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: bb9e16c4d7c36f232e0fc95a342a321a2893ae0e88aac16bcbb2592c225cf82c

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "f566f17483d7e8a40dfbe99483c94182e6f3653694da4f7d931137e6c15c434b",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.HE",
    "submitted_at": "2009-01-05T13:11:47Z",
    "title_canon_sha256": "a1b1dea67926910d423125c05d4bd9814acffae03455b1347e01c1826ec5b8b8"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0901.0475",
    "kind": "arxiv",
    "version": 1
  }
}