Pith Number

pith:QHMTTKUN

pith:2017:QHMTTKUNRN6BLYBA4LVVRNOS25

not attested not anchored not stored refs pending

$\tilde{\delta}$ Gravity, $\tilde{\delta}$ matter and the accelerated expansion of the Universe

Jorge Alfaro, Pablo Gonz\'alez

arxiv:1704.02888 v2 · 2017-04-07 · 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{QHMTTKUNRN6BLYBA4LVVRNOS25}

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	2026-05-18T00:31:23.792893Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

81d939aa8d8b7c15e020e2eb58b5d2d779ad62b82a034db9745efc56064bd496

Aliases

arxiv: 1704.02888 · arxiv_version: 1704.02888v2 · doi: 10.48550/arxiv.1704.02888 · pith_short_12: QHMTTKUNRN6B · pith_short_16: QHMTTKUNRN6BLYBA · pith_short_8: QHMTTKUN

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/QHMTTKUNRN6BLYBA4LVVRNOS25 \
  | 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: 81d939aa8d8b7c15e020e2eb58b5d2d779ad62b82a034db9745efc56064bd496

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "3e7264d21e0a7df83b9c6301153e23d5864ce8004396ac49dfdbc09ae9c32f4f",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "gr-qc",
    "submitted_at": "2017-04-07T17:25:29Z",
    "title_canon_sha256": "56bfa6a336e767b2e652d4709cd0d160830ba214713f4ebe809ffebc66ad65cd"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1704.02888",
    "kind": "arxiv",
    "version": 2
  }
}