pith. sign in
Pith Number

pith:R7KEBY5U

pith:2018:R7KEBY5U4G64WFDELT2RENNORE
not attested not anchored not stored refs pending

Space-time can be neither discrete nor continuous

Christian Corda

arxiv:1804.03545 v1 · 2018-04-09 · physics.gen-ph

Add to your LaTeX paper
\usepackage{pith}
\pithnumber{R7KEBY5U4G64WFDELT2RENNORE}

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 2026-05-18T00:17:53.067935Z
Builder pith-number-builder-2026-05-17-v1
Signature Pith Ed25519 (pith-v1-2026-05) · public key
Schema pith-number/v1.0

Canonical hash

8fd440e3b4e1bdcb14645cf51235ae892c7d95b7a969c6060f60663e0556ee6c

Aliases

arxiv: 1804.03545 · arxiv_version: 1804.03545v1 · doi: 10.48550/arxiv.1804.03545 · pith_short_12: R7KEBY5U4G64 · pith_short_16: R7KEBY5U4G64WFDE · pith_short_8: R7KEBY5U
Agent API
Verify this Pith Number yourself
curl -sH 'Accept: application/ld+json' https://pith.science/pith/R7KEBY5U4G64WFDELT2RENNORE \
  | 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: 8fd440e3b4e1bdcb14645cf51235ae892c7d95b7a969c6060f60663e0556ee6c
Canonical record JSON
{
  "metadata": {
    "abstract_canon_sha256": "c00e4cd8536741db4f18096d3aaf3175f571ca82549533d67bcd718460099a1a",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "physics.gen-ph",
    "submitted_at": "2018-04-09T10:19:12Z",
    "title_canon_sha256": "9e95b6b578ff2ee03214664fc56e209093945f5060c479201440d8bd98490a91"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1804.03545",
    "kind": "arxiv",
    "version": 1
  }
}