Pith Number

pith:LUKWHQRP

pith:2015:LUKWHQRPRJDOFP4QULRCC2QCVI

not attested not anchored not stored refs pending

Whither TCAF?

Sandip Kumar Chakrabarti

arxiv:1509.00565 v1 · 2015-09-02 · astro-ph.HE

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{LUKWHQRPRJDOFP4QULRCC2QCVI}

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	2026-05-18T01:34:06.825656Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

5d1563c22f8a46e2bf90a2e2216a02aa3b6fc4ce25a1ed9daf625fc235336956

Aliases

arxiv: 1509.00565 · arxiv_version: 1509.00565v1 · doi: 10.48550/arxiv.1509.00565 · pith_short_12: LUKWHQRPRJDO · pith_short_16: LUKWHQRPRJDOFP4Q · pith_short_8: LUKWHQRP

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/LUKWHQRPRJDOFP4QULRCC2QCVI \
  | 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: 5d1563c22f8a46e2bf90a2e2216a02aa3b6fc4ce25a1ed9daf625fc235336956

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "b578812efb2722a5806b7bed4ae6d908b89030ab13928f4631fd44e9be925d5a",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.HE",
    "submitted_at": "2015-09-02T05:51:47Z",
    "title_canon_sha256": "5a1703fee11ebd07deefd34f30eb75e6973a0a8b779ca7e0cadf22e21a8a5424"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1509.00565",
    "kind": "arxiv",
    "version": 1
  }
}