Pith Number

pith:2AGORVI5

pith:2016:2AGORVI5ESASY3RYSU554MOGBO

not attested not anchored not stored refs pending

Do electromagnetic waves always propagate along null geodesics?

Felipe A. Asenjo, Sergio A. Hojman

arxiv:1608.06572 v3 · 2016-08-23 · 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{2AGORVI5ESASY3RYSU554MOGBO}

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	2026-05-18T00:32:14.783549Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

d00ce8d51d24812c6e38953bde31c60ba13e0624b05d5d59c9d2e54eb908cacf

Aliases

arxiv: 1608.06572 · arxiv_version: 1608.06572v3 · doi: 10.48550/arxiv.1608.06572 · pith_short_12: 2AGORVI5ESAS · pith_short_16: 2AGORVI5ESASY3RY · pith_short_8: 2AGORVI5

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/2AGORVI5ESASY3RYSU554MOGBO \
  | 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: d00ce8d51d24812c6e38953bde31c60ba13e0624b05d5d59c9d2e54eb908cacf

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "6003cd34fbf852b85e7387e9c5c1cf40326a72156dd2605fae09bff0b353bff4",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "gr-qc",
    "submitted_at": "2016-08-23T16:46:25Z",
    "title_canon_sha256": "d718cec38fa25980e2f463f2da9e2c8b6d66cab68196996eca10834075229ee6"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1608.06572",
    "kind": "arxiv",
    "version": 3
  }
}