Pith Number

pith:NFLKP7WS

pith:2015:NFLKP7WSSJW3WVSEVCQLZ46XYF

not attested not anchored not stored refs pending

Background-Independence from the Perspective of Gauge Theory

Alex Flournoy, Casey Cartwright

arxiv:1512.03808 v1 · 2015-12-11 · 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{NFLKP7WSSJW3WVSEVCQLZ46XYF}

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	2026-05-18T01:24:31.303150Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

6956a7fed2926dbb5644a8a0bcf3d7c14a9414502d622727100f8de53cdc0f08

Aliases

arxiv: 1512.03808 · arxiv_version: 1512.03808v1 · doi: 10.48550/arxiv.1512.03808 · pith_short_12: NFLKP7WSSJW3 · pith_short_16: NFLKP7WSSJW3WVSE · pith_short_8: NFLKP7WS

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/NFLKP7WSSJW3WVSEVCQLZ46XYF \
  | 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: 6956a7fed2926dbb5644a8a0bcf3d7c14a9414502d622727100f8de53cdc0f08

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "98fe8c6be6d9691318815a6f57db60b786fcafef1e981a5818d1a76dd4692f19",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "gr-qc",
    "submitted_at": "2015-12-11T20:59:52Z",
    "title_canon_sha256": "0e7bd5810edade6bccd33e5788daa88eb2b3e203971314dca232c8c148980170"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1512.03808",
    "kind": "arxiv",
    "version": 1
  }
}