Pith Number

pith:AHFLIYS3

pith:2019:AHFLIYS3NDBZ36JHU76JDMGS27

not attested not anchored not stored refs pending

Light Rays, Singularities, and All That

Edward Witten

arxiv:1901.03928 v6 · 2019-01-13 · hep-th · 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{AHFLIYS3NDBZ36JHU76JDMGS27}

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

4 papers in Pith

Impossibility of superluminal signalling rules out causal loops in conical spacetimes

Modave lectures on energy conditions in quantum field theory and semi-classical gravity

Algebraic traversable wormholes

On the Asymptotic Causal Structure in Gravitational EFTs

Receipt and verification

First computed	2026-07-05T06:30:22.410434Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

01cab4625b68c39df927a7fc91b0d2d7eebf52638eab9e3667bebb89e01623f4

Aliases

arxiv: 1901.03928 · arxiv_version: 1901.03928v6 · doi: 10.48550/arxiv.1901.03928 · pith_short_12: AHFLIYS3NDBZ · pith_short_16: AHFLIYS3NDBZ36JH · pith_short_8: AHFLIYS3

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/AHFLIYS3NDBZ36JHU76JDMGS27 \
  | 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: 01cab4625b68c39df927a7fc91b0d2d7eebf52638eab9e3667bebb89e01623f4

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "29aabfe121a048509adaf913d34489009ab2fbee796346933f3966fa7c2efd1a",
    "cross_cats_sorted": [
      "gr-qc"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "hep-th",
    "submitted_at": "2019-01-13T03:56:27Z",
    "title_canon_sha256": "90fc62d6eea753d762509d89b80e3192721a9be56376df910a39994c4e3899a1"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1901.03928",
    "kind": "arxiv",
    "version": 6
  }
}