Pith Number

pith:75PRDQN7

pith:2000:75PRDQN73X2UDPK774IGF53HM2

not attested not anchored not stored refs pending

Accretion Disk Boundary Layers Around Neutron Stars: X-ray Production in Low-Mass X-ray Binaries

2) ((1) MPA Garching, (2) Space Research Institute, Moscow), Rashid Sunyaev (1, Robert Popham (1)

arxiv:astro-ph/0004017 v1 · 2000-04-03 · 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{75PRDQN73X2UDPK774IGF53HM2}

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	2026-07-04T16:16:15.193344Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

ff5f11c1bfddf541bd5fff1062f76766bb340ef55d6b2211873857d751fee627

Aliases

arxiv: astro-ph/0004017 · arxiv_version: astro-ph/0004017v1 · doi: 10.48550/arxiv.astro-ph/0004017 · pith_short_12: 75PRDQN73X2U · pith_short_16: 75PRDQN73X2UDPK7 · pith_short_8: 75PRDQN7

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/75PRDQN73X2UDPK774IGF53HM2 \
  | 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: ff5f11c1bfddf541bd5fff1062f76766bb340ef55d6b2211873857d751fee627

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "6919f9249969eed063a7ffa7f5875f36af41a9f9526c6ec521bd0a02ffb2d8ab",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "2000-04-03T15:53:53Z",
    "title_canon_sha256": "25120fad5d6f987cd936672daac540efbeff0bb13242adcc54eff161c2bbd402"
  },
  "schema_version": "1.0",
  "source": {
    "id": "astro-ph/0004017",
    "kind": "arxiv",
    "version": 1
  }
}