Pith Number

pith:YTFNPYM2

pith:2013:YTFNPYM2BUCXRWJRKXDMDASC46

not attested not anchored not stored refs pending

Improving self-calibration

Henrik Junklewitz, Lars Winderling, Maksim Greiner, Marco Selig, Torsten A. En{\ss}lin

arxiv:1312.1349 v3 · 2013-12-04 · astro-ph.IM · cs.IT · math.IT · physics.data-an · stat.ML

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{YTFNPYM2BUCXRWJRKXDMDASC46}

Prints a linked badge after your title and injects PDF metadata. Compiles on arXiv. Learn more

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	2026-05-18T01:45:58.531652Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

c4cad7e19a0d0578d93155c6c18242e78c268773f6690f79d260c884fe380902

Aliases

arxiv: 1312.1349 · arxiv_version: 1312.1349v3 · doi: 10.48550/arxiv.1312.1349 · pith_short_12: YTFNPYM2BUCX · pith_short_16: YTFNPYM2BUCXRWJR · pith_short_8: YTFNPYM2

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/YTFNPYM2BUCXRWJRKXDMDASC46 \
  | 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: c4cad7e19a0d0578d93155c6c18242e78c268773f6690f79d260c884fe380902

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "e41c6da595d06289ed02368744244bd9fe993c9e78edc719b7bf026b47349ef4",
    "cross_cats_sorted": [
      "cs.IT",
      "math.IT",
      "physics.data-an",
      "stat.ML"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.IM",
    "submitted_at": "2013-12-04T21:00:22Z",
    "title_canon_sha256": "e2628ce35da9b034d15ec710cd88a70f69e143dac42d1fed9f91334527310016"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1312.1349",
    "kind": "arxiv",
    "version": 3
  }
}