Pith Number

pith:KM4JVODV

pith:2002:KM4JVODVJNRYQF5XFTFSM4EY7R

not attested not anchored not stored refs pending

The radiation properties of an accretion disk with a non-zero torque on its inner edge

(2) Shanghai Jiaotong University), CAS, Xinwu Cao (1), Y.D. Xu (2) ((1) Shanghai Astronomical Observatory

arxiv:astro-ph/0211220 v1 · 2002-11-11 · astro-ph

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{KM4JVODVJNRYQF5XFTFSM4EY7R}

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	2026-05-18T01:40:40.098215Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

53389ab8754b638817b72ccb267098fc5f3be894ac4e8fbce11619cdbd2ac1c3

Aliases

arxiv: astro-ph/0211220 · arxiv_version: astro-ph/0211220v1 · doi: 10.48550/arxiv.astro-ph/0211220 · pith_short_12: KM4JVODVJNRY · pith_short_16: KM4JVODVJNRYQF5X · pith_short_8: KM4JVODV

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/KM4JVODVJNRYQF5XFTFSM4EY7R \
  | 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: 53389ab8754b638817b72ccb267098fc5f3be894ac4e8fbce11619cdbd2ac1c3

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "0e5b62386d7f039b848af6039eea2a2eb7f070042300f207d182aa3afff4eb64",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "2002-11-11T18:06:46Z",
    "title_canon_sha256": "cc7c2990aab4eb069f1269d585d763b5df724be96504b46b48cbc9af3bd7e134"
  },
  "schema_version": "1.0",
  "source": {
    "id": "astro-ph/0211220",
    "kind": "arxiv",
    "version": 1
  }
}