Pith Number

pith:MCCLSZCV

pith:2015:MCCLSZCV6GDPZXPDPLJMYMUHEU

not attested not anchored not stored refs pending

Comments on Backreaction

Robert M. Wald, Stephen R. Green

arxiv:1506.06452 v2 · 2015-06-22 · gr-qc · astro-ph.CO · hep-th

Open paper page JSON Open Graph Bundle Merged state Verified badge What is a Pith Number?

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{MCCLSZCV6GDPZXPDPLJMYMUHEU}

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	2026-05-18T01:28:25.476421Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

6084b96455f186fcdde37ad2cc328725311a6f89d3bf10f5e0e1a192adf682e5

Aliases

arxiv: 1506.06452 · arxiv_version: 1506.06452v2 · doi: 10.48550/arxiv.1506.06452 · pith_short_12: MCCLSZCV6GDP · pith_short_16: MCCLSZCV6GDPZXPD · pith_short_8: MCCLSZCV

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/MCCLSZCV6GDPZXPDPLJMYMUHEU \
  | 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: 6084b96455f186fcdde37ad2cc328725311a6f89d3bf10f5e0e1a192adf682e5

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "d664f2bf46551ef60e3338b1ec0493dde2a65f426c49086c09dab1d2d8155589",
    "cross_cats_sorted": [
      "astro-ph.CO",
      "hep-th"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "gr-qc",
    "submitted_at": "2015-06-22T03:32:52Z",
    "title_canon_sha256": "f4478ce2ae59657bda85317b01b6790f8d5a9f0df62e810d4f7c21c0793bac62"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1506.06452",
    "kind": "arxiv",
    "version": 2
  }
}