Pith Number

pith:Q6NGOAIG

pith:2010:Q6NGOAIGFJTDBICEDVARWALBDI

not attested not anchored not stored refs pending

Collisions in piecewise flat gravity in 3+1 dimensions

Maarten van de Meent

arxiv:1002.3708 v1 · 2010-02-19 · 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{Q6NGOAIGFJTDBICEDVARWALBDI}

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	2026-05-18T02:33:47.804323Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

879a6701062a6630a0441d411b01611a0cc16603cc152c3d44d294027bc17f1c

Aliases

arxiv: 1002.3708 · arxiv_version: 1002.3708v1 · doi: 10.48550/arxiv.1002.3708 · pith_short_12: Q6NGOAIGFJTD · pith_short_16: Q6NGOAIGFJTDBICE · pith_short_8: Q6NGOAIG

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/Q6NGOAIGFJTDBICEDVARWALBDI \
  | 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: 879a6701062a6630a0441d411b01611a0cc16603cc152c3d44d294027bc17f1c

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "55a5b2a650956f3859fbf804c3d3a9131110d6d33fe8dad7001ff991346936de",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "gr-qc",
    "submitted_at": "2010-02-19T10:58:16Z",
    "title_canon_sha256": "9c94788f9443109c06bdc187fbebd48e5b6b75129b887c95366d5de3b4f2398d"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1002.3708",
    "kind": "arxiv",
    "version": 1
  }
}