Pith Number

pith:CXY5PKDM

pith:2013:CXY5PKDM52EJHMVGYWKA2UPSZM

not attested not anchored not stored refs pending

Unitary evolution as a uniqueness criterion

Guillermo A. Mena Marugan, Javier Olmedo, Jeronimo Cortez, Jose M. Velhinho

arxiv:1311.0443 v1 · 2013-11-03 · gr-qc

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{CXY5PKDM52EJHMVGYWKA2UPSZM}

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	2026-05-18T03:08:05.929432Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

15f1d7a86cee8893b2a6c5940d51f2cb11f4e3776647749f8a49e241cc24fb96

Aliases

arxiv: 1311.0443 · arxiv_version: 1311.0443v1 · doi: 10.48550/arxiv.1311.0443 · pith_short_12: CXY5PKDM52EJ · pith_short_16: CXY5PKDM52EJHMVG · pith_short_8: CXY5PKDM

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/CXY5PKDM52EJHMVGYWKA2UPSZM \
  | 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: 15f1d7a86cee8893b2a6c5940d51f2cb11f4e3776647749f8a49e241cc24fb96

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "1319588899c7cf57e52df8e826994a06183fa10ed4171fa49925df943d640bb7",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "gr-qc",
    "submitted_at": "2013-11-03T09:30:46Z",
    "title_canon_sha256": "2d1e4766cadd28a30b34534666c21a3fc70859c4333f4404ededcf6e910da6b8"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1311.0443",
    "kind": "arxiv",
    "version": 1
  }
}