Pith Number

pith:IVWMKPSV

pith:2013:IVWMKPSV2IAAJ4XTPAZXWJQNRW

not attested not anchored not stored refs pending

Spacetime Singularities: Recent Developments

Claes Uggla

arxiv:1306.6527 v1 · 2013-06-27 · 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{IVWMKPSV2IAAJ4XTPAZXWJQNRW}

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	2026-05-18T03:19:44.553281Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

456cc53e55d20004f2f378337b260d8dbe3c45ae4284658bce757eca37ef5c44

Aliases

arxiv: 1306.6527 · arxiv_version: 1306.6527v1 · doi: 10.48550/arxiv.1306.6527 · pith_short_12: IVWMKPSV2IAA · pith_short_16: IVWMKPSV2IAAJ4XT · pith_short_8: IVWMKPSV

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/IVWMKPSV2IAAJ4XTPAZXWJQNRW \
  | 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: 456cc53e55d20004f2f378337b260d8dbe3c45ae4284658bce757eca37ef5c44

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "f5b3d490f520050c29c2b8e4e01cc02367cc7b369f7d3c9946ce73ed8b025192",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "gr-qc",
    "submitted_at": "2013-06-27T14:51:57Z",
    "title_canon_sha256": "70ee9176c784dc1000d178c3f3ccb3b3eef065e71175a7343a20be34a9547e84"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1306.6527",
    "kind": "arxiv",
    "version": 1
  }
}