Pith Number

pith:3HET5XGQ

pith:2000:3HET5XGQMGI4ZA4A74OHINIBRT

not attested not anchored not stored refs pending

The Steady Spin Down Rate of 4U 1907+09

A. Baykal, C. Inam (Middle East Technical University, J. in't Zand (Space Research Organization Sorbonnelaan, M.A. Alpar (Sabanci University, Netherlands), T. Strohmayer (NASA/GSFC, Turkey), USA)

arxiv:astro-ph/0011404 v1 · 2000-11-22 · 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{3HET5XGQMGI4ZA4A74OHINIBRT}

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	2026-05-18T01:07:46.253641Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

d9c93edcd06191cc8380ff1c7435018cfc8ac24107b05ce9ce084b4949b373bd

Aliases

arxiv: astro-ph/0011404 · arxiv_version: astro-ph/0011404v1 · doi: 10.48550/arxiv.astro-ph/0011404 · pith_short_12: 3HET5XGQMGI4 · pith_short_16: 3HET5XGQMGI4ZA4A · pith_short_8: 3HET5XGQ

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/3HET5XGQMGI4ZA4A74OHINIBRT \
  | 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: d9c93edcd06191cc8380ff1c7435018cfc8ac24107b05ce9ce084b4949b373bd

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "3e0a5eb15dc437c493e2fa684708f9073b502edc9364b0f7d9f08bcfe69c5343",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "2000-11-22T13:51:07Z",
    "title_canon_sha256": "fc9b6fd1f3335c484dad210d421b7004d7e7aafdc4ec05f4f33f2b72ddbea8e4"
  },
  "schema_version": "1.0",
  "source": {
    "id": "astro-ph/0011404",
    "kind": "arxiv",
    "version": 1
  }
}