Pith. sign in
Pith Number

pith:ZDBMVGJY

pith:2002:ZDBMVGJYRGQSTV4XCDDG6CZBJL
not attested not anchored not stored refs pending

A Magic Electromagnetic Field

Cambridge), Clare College, Donald Lynden-Bell (Institute of Astronomy, University of Cambridge

arxiv:astro-ph/0207064 v1 · 2002-07-02 · astro-ph

Add to your LaTeX paper
\usepackage{pith}
\pithnumber{ZDBMVGJYRGQSTV4XCDDG6CZBJL}

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.

Cited by

5 papers in Pith

Receipt and verification
First computed 2026-07-04T14:12:05.192673Z
Builder pith-number-builder-2026-05-17-v1
Signature Pith Ed25519 (pith-v1-2026-05) · public key
Schema pith-number/v1.0

Canonical hash

c8c2ca993889a129d79710c66f0b214adcdc8651e884224d542fc2533b831682

Aliases

arxiv: astro-ph/0207064 · arxiv_version: astro-ph/0207064v1 · doi: 10.48550/arxiv.astro-ph/0207064 · pith_short_12: ZDBMVGJYRGQS · pith_short_16: ZDBMVGJYRGQSTV4X · pith_short_8: ZDBMVGJY
Agent API
Verify this Pith Number yourself
curl -sH 'Accept: application/ld+json' https://pith.science/pith/ZDBMVGJYRGQSTV4XCDDG6CZBJL \
  | 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: c8c2ca993889a129d79710c66f0b214adcdc8651e884224d542fc2533b831682
Canonical record JSON
{
  "metadata": {
    "abstract_canon_sha256": "a8caf4367321a6c65f49cc48bc68b739c991edf82f6133dc5c41665fb465c090",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "2002-07-02T13:39:27Z",
    "title_canon_sha256": "699f792d074cc6ebb821fa1ed46fde97976ffa2cb1753b645ae86dfbf53c46e9"
  },
  "schema_version": "1.0",
  "source": {
    "id": "astro-ph/0207064",
    "kind": "arxiv",
    "version": 1
  }
}