Pith Number

pith:K5MMH5HB

pith:2015:K5MMH5HBUV4FRLHHSMA3RXXUSF

not attested not anchored not stored refs pending

Uncovering the effective spacetime: Lessons from the effective field theory rationale

Carlos Barcel\'o, Luis J. Garay, Ra\'ul Carballo-Rubio

arxiv:1505.05315 v1 · 2015-05-20 · hep-th · 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{K5MMH5HBUV4FRLHHSMA3RXXUSF}

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	2026-05-18T01:25:47.029333Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

5758c3f4e1a57858ace79301b8def4916b591ec67258cb30b1b6d120b0bb6c7d

Aliases

arxiv: 1505.05315 · arxiv_version: 1505.05315v1 · doi: 10.48550/arxiv.1505.05315 · pith_short_12: K5MMH5HBUV4F · pith_short_16: K5MMH5HBUV4FRLHH · pith_short_8: K5MMH5HB

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/K5MMH5HBUV4FRLHHSMA3RXXUSF \
  | 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: 5758c3f4e1a57858ace79301b8def4916b591ec67258cb30b1b6d120b0bb6c7d

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "e9c5b0d860254a54836bd86cc2b0f12cc6bc49ee778821030ccf095146c369af",
    "cross_cats_sorted": [
      "gr-qc"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "hep-th",
    "submitted_at": "2015-05-20T10:55:39Z",
    "title_canon_sha256": "155d1269aee16c4f11b473c65f25a512ac8dea7a5f609d4223546dbadfcb6f0f"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1505.05315",
    "kind": "arxiv",
    "version": 1
  }
}