Pith Number

pith:DFPOOQK4

pith:2016:DFPOOQK42OIIOKN25Y4WHNW62A

not attested not anchored not stored refs pending

A Simple, Heuristic Derivation of our "No Backreaction" Results

Robert M. Wald, Stephen R. Green

arxiv:1601.06789 v1 · 2016-01-25 · gr-qc · astro-ph.CO

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{DFPOOQK42OIIOKN25Y4WHNW62A}

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	2026-05-18T01:13:15.509792Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

195ee7415cd3908729baee3963b6ded03c0585f02b89ff476cb3390fc39c0b38

Aliases

arxiv: 1601.06789 · arxiv_version: 1601.06789v1 · doi: 10.48550/arxiv.1601.06789 · pith_short_12: DFPOOQK42OII · pith_short_16: DFPOOQK42OIIOKN2 · pith_short_8: DFPOOQK4

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/DFPOOQK42OIIOKN25Y4WHNW62A \
  | 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: 195ee7415cd3908729baee3963b6ded03c0585f02b89ff476cb3390fc39c0b38

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "d4d09c2fa33a99c216d2481a0dfb6824aa14a531fc48e5d7bf0ebd05c8646053",
    "cross_cats_sorted": [
      "astro-ph.CO"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "gr-qc",
    "submitted_at": "2016-01-25T21:00:10Z",
    "title_canon_sha256": "61ff29dd6fdadbe21009a116cc95e900e38d05f45a8a65a1fdfa38fb22af9543"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1601.06789",
    "kind": "arxiv",
    "version": 1
  }
}