Pith Number

pith:COU3OCWZ

pith:2001:COU3OCWZINTSY2NA6L4Z25MYMQ

not attested not anchored not stored refs pending

Spectral variability in transonic discs around black holes

E. Szuszkiewicz, L. Zampieri, R. Turolla

arxiv:astro-ph/0104101 v1 · 2001-04-05 · 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{COU3OCWZINTSY2NA6L4Z25MYMQ}

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	2026-07-04T16:23:00.086864Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

13a9b70ad943672c69a0f2f99d759864353cb96075e6444752b5bf88c7702a89

Aliases

arxiv: astro-ph/0104101 · arxiv_version: astro-ph/0104101v1 · doi: 10.48550/arxiv.astro-ph/0104101 · pith_short_12: COU3OCWZINTS · pith_short_16: COU3OCWZINTSY2NA · pith_short_8: COU3OCWZ

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/COU3OCWZINTSY2NA6L4Z25MYMQ \
  | 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: 13a9b70ad943672c69a0f2f99d759864353cb96075e6444752b5bf88c7702a89

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "0046d32dac9d20d802fbb3b37e98783153e20c8c204c23c7f97189d3adf6aa17",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "2001-04-05T14:51:51Z",
    "title_canon_sha256": "90df1c3dc1ee46683402536e2e45ce6086f215c36135d0c52876a6c64350b5a8"
  },
  "schema_version": "1.0",
  "source": {
    "id": "astro-ph/0104101",
    "kind": "arxiv",
    "version": 1
  }
}