Pith. sign in
Pith Number

pith:T3UKH2CQ

pith:2020:T3UKH2CQNLTLGBXFU7OFMM6EZ4
not attested not anchored not stored refs pending

Loops on the Celestial Sphere

Andrea Puhm, Francisco Rojas, Hernan A. Gonzalez

arxiv:2009.07290 v2 · 2020-09-15 · hep-th · gr-qc

Add to your LaTeX paper
\usepackage{pith}
\pithnumber{T3UKH2CQNLTLGBXFU7OFMM6EZ4}

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.

Cited by

4 papers in Pith

Receipt and verification
First computed 2026-07-05T02:03:45.195577Z
Builder pith-number-builder-2026-05-17-v1
Signature Pith Ed25519 (pith-v1-2026-05) · public key
Schema pith-number/v1.0

Canonical hash

9ee8a3e8506ae6b306e5a7dc5633c4cf1d1c745f23283390b5ee5502c374f894

Aliases

arxiv: 2009.07290 · arxiv_version: 2009.07290v2 · doi: 10.48550/arxiv.2009.07290 · pith_short_12: T3UKH2CQNLTL · pith_short_16: T3UKH2CQNLTLGBXF · pith_short_8: T3UKH2CQ
Agent API
Verify this Pith Number yourself
curl -sH 'Accept: application/ld+json' https://pith.science/pith/T3UKH2CQNLTLGBXFU7OFMM6EZ4 \
  | 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: 9ee8a3e8506ae6b306e5a7dc5633c4cf1d1c745f23283390b5ee5502c374f894
Canonical record JSON
{
  "metadata": {
    "abstract_canon_sha256": "a19b70d5699995955680369887f5195690cdf944583cdf94c168f6d777700cf7",
    "cross_cats_sorted": [
      "gr-qc"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "hep-th",
    "submitted_at": "2020-09-15T18:00:03Z",
    "title_canon_sha256": "60c168fa4e09712c72213681e1a8b3c8eefdb86428180d96674703735ad864a8"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2009.07290",
    "kind": "arxiv",
    "version": 2
  }
}