Pith Number

pith:NUVLZHV7

pith:2010:NUVLZHV7YRK3O7J4UDBPLL4NUJ

not attested not anchored not stored refs pending

The Problem of Time in Quantum Gravity

Edward Anderson

arxiv:1009.2157 v3 · 2010-09-11 · 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{NUVLZHV7YRK3O7J4UDBPLL4NUJ}

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

1 paper in Pith

Problem of Time and Background Independence: classical version's higher Lie Theory

Receipt and verification

First computed	2026-05-18T03:50:35.738062Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

6d2abc9ebfc455b77d3ca0c2f5af8da2679fae1ff90872c59b371fbab6522768

Aliases

arxiv: 1009.2157 · arxiv_version: 1009.2157v3 · doi: 10.48550/arxiv.1009.2157 · pith_short_12: NUVLZHV7YRK3 · pith_short_16: NUVLZHV7YRK3O7J4 · pith_short_8: NUVLZHV7

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/NUVLZHV7YRK3O7J4UDBPLL4NUJ \
  | 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: 6d2abc9ebfc455b77d3ca0c2f5af8da2679fae1ff90872c59b371fbab6522768

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "a1fdc936b24a606f10f1a9d09c64d6347e001b6722383d4cf82b9b59667e0565",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "gr-qc",
    "submitted_at": "2010-09-11T11:52:20Z",
    "title_canon_sha256": "3eb364cd8eb8e1bb5332044db4800f2082f5587edea11ab0f22fb24f7ffe8770"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1009.2157",
    "kind": "arxiv",
    "version": 3
  }
}