Pith Number

pith:ZK2PPY45

pith:2009:ZK2PPY45BEPXSFQJNDQGJKAOBK

not attested not anchored not stored refs pending

From Elastic Continua to Space-time

Angelo Tartaglia, Ninfa Radicella

arxiv:0911.3362 v1 · 2009-11-17 · 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{ZK2PPY45BEPXSFQJNDQGJKAOBK}

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	2026-05-18T02:34:04.874143Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

cab4f7e39d091f79160968e064a80e0a8d88261c813fc57fa068c7ad542ae938

Aliases

arxiv: 0911.3362 · arxiv_version: 0911.3362v1 · doi: 10.48550/arxiv.0911.3362 · pith_short_12: ZK2PPY45BEPX · pith_short_16: ZK2PPY45BEPXSFQJ · pith_short_8: ZK2PPY45

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/ZK2PPY45BEPXSFQJNDQGJKAOBK \
  | 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: cab4f7e39d091f79160968e064a80e0a8d88261c813fc57fa068c7ad542ae938

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "e189ff3e101138a83eddf412f589ac602fbc674e7237d6378c2b74e3c5b8c443",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "gr-qc",
    "submitted_at": "2009-11-17T18:19:28Z",
    "title_canon_sha256": "22b11003691ae1d177798485edbc2c252f53cd981b2b64ed6b40a999a7e33aba"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0911.3362",
    "kind": "arxiv",
    "version": 1
  }
}