Pith Number

pith:FSFSUF62

pith:2019:FSFSUF62NLOKKQFRJPS75DBAVP

not attested not anchored not stored refs pending

Backreaction on an infinite helical cosmic string

III, Ken D. Olum, Ken W. Robbins

arxiv:1908.09702 v3 · 2019-08-26 · astro-ph.CO · 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{FSFSUF62NLOKKQFRJPS75DBAVP}

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	2026-07-05T00:20:18.892587Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

2c8b2a17da6adca540b14be5fe8c20abd562dde4d7d37c835f2569cec07ce590

Aliases

arxiv: 1908.09702 · arxiv_version: 1908.09702v3 · doi: 10.48550/arxiv.1908.09702 · pith_short_12: FSFSUF62NLOK · pith_short_16: FSFSUF62NLOKKQFR · pith_short_8: FSFSUF62

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/FSFSUF62NLOKKQFRJPS75DBAVP \
  | 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: 2c8b2a17da6adca540b14be5fe8c20abd562dde4d7d37c835f2569cec07ce590

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "403cb81d8867b9dd16bb925976016e411d8c41aa753762d303dd947533ebe743",
    "cross_cats_sorted": [
      "gr-qc"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.CO",
    "submitted_at": "2019-08-26T14:21:57Z",
    "title_canon_sha256": "5c18f32c23945a1c4868d07bb9b0cb6c7491a4920c9495a32d1267f94c846217"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1908.09702",
    "kind": "arxiv",
    "version": 3
  }
}