Pith Number

pith:XNUQDAI7

pith:2000:XNUQDAI7NWMYNSQGEHBIIBQIAC

not attested not anchored not stored refs pending

Constrained Superconducting Membranes

Efrain Rojas, Ruben Cordero

arxiv:astro-ph/0009139 v1 · 2000-09-09 · 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{XNUQDAI7NWMYNSQGEHBIIBQIAC}

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	2026-05-18T01:07:46.450438Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

bb6901811f6d9986ca0621c284060800be774c14ca313fc65d4457ce9261cb9b

Aliases

arxiv: astro-ph/0009139 · arxiv_version: astro-ph/0009139v1 · doi: 10.48550/arxiv.astro-ph/0009139 · pith_short_12: XNUQDAI7NWMY · pith_short_16: XNUQDAI7NWMYNSQG · pith_short_8: XNUQDAI7

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/XNUQDAI7NWMYNSQGEHBIIBQIAC \
  | 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: bb6901811f6d9986ca0621c284060800be774c14ca313fc65d4457ce9261cb9b

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "3f2b9adbeab9a5071aa4e771d30553e216fb5da0fecc13aee4efa46919cf2d8a",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "2000-09-09T01:32:54Z",
    "title_canon_sha256": "98f7e525687dc84567fb3285fb5ca0b428aaa7268829ab5944080fc90dcb0d4d"
  },
  "schema_version": "1.0",
  "source": {
    "id": "astro-ph/0009139",
    "kind": "arxiv",
    "version": 1
  }
}