Pith Number

pith:BSVHURUU

pith:2015:BSVHURUUBAPNNVNIVH2LJFKEH4

not attested not anchored not stored refs pending

Addendum to 'Direct limits in the heart of a t-structure: The case of a torsion pair'

Carlos E. Parra, Manuel Saor\'in

arxiv:1509.00258 v1 · 2015-09-01 · math.CT

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{BSVHURUUBAPNNVNIVH2LJFKEH4}

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	2026-05-18T01:34:14.671009Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

0caa7a4694081ed6d5a8a9f4b495443f165c82bff741b768e5e6a115e32ddeae

Aliases

arxiv: 1509.00258 · arxiv_version: 1509.00258v1 · doi: 10.48550/arxiv.1509.00258 · pith_short_12: BSVHURUUBAPN · pith_short_16: BSVHURUUBAPNNVNI · pith_short_8: BSVHURUU

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/BSVHURUUBAPNNVNIVH2LJFKEH4 \
  | 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: 0caa7a4694081ed6d5a8a9f4b495443f165c82bff741b768e5e6a115e32ddeae

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "15f699f7f0876e8d96d36b045eac20270feac1d68eebe0021b8c33c411e9caf3",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.CT",
    "submitted_at": "2015-09-01T12:33:25Z",
    "title_canon_sha256": "ee364a732d39fb2270feedf90c4857c39ca60ddf817d3235f75b0b36387a97a9"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1509.00258",
    "kind": "arxiv",
    "version": 1
  }
}