Pith Number

pith:VK7UQPN3

pith:1999:VK7UQPN34KRLZ4CWBBEHXCM46E

not attested not anchored not stored refs pending

Recent Progress in Nuclear Astrophysics

K. Langanke

arxiv:nucl-th/9901035 v1 · 1999-01-14 · nucl-th

Open paper page JSON Open Graph Bundle Merged state Verified badge What is a Pith Number?

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{VK7UQPN34KRLZ4CWBBEHXCM46E}

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	2026-07-04T15:27:36.545071Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

aabf483dbbe2a2bcf05608487b899cf124993126d1bf4d77809f3041fe9ab08b

Aliases

arxiv: nucl-th/9901035 · arxiv_version: nucl-th/9901035v1 · doi: 10.48550/arxiv.nucl-th/9901035 · pith_short_12: VK7UQPN34KRL · pith_short_16: VK7UQPN34KRLZ4CW · pith_short_8: VK7UQPN3

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/VK7UQPN34KRLZ4CWBBEHXCM46E \
  | 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: aabf483dbbe2a2bcf05608487b899cf124993126d1bf4d77809f3041fe9ab08b

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "58bb276246263230cf9dc51e3f1983ddda972b0ebab77e2718bebab09c92c814",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "nucl-th",
    "submitted_at": "1999-01-14T10:32:15Z",
    "title_canon_sha256": "1908a58a71207d4eee3412514e5ed06c2ddbb4a9da1f551579cb3e73c45cfd49"
  },
  "schema_version": "1.0",
  "source": {
    "id": "nucl-th/9901035",
    "kind": "arxiv",
    "version": 1
  }
}