Pith Number

pith:BLEF3U2H

pith:2014:BLEF3U2H3VXEKMKHWMU77GE7FK

not attested not anchored not stored refs pending

Evolution of geodesic congruences in a gravitationally collapsing scalar field background

Anirvan Dasgupta, Rajibul Shaikh, Sayan Kar

arxiv:1407.6465 v3 · 2014-07-24 · 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{BLEF3U2H3VXEKMKHWMU77GE7FK}

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	2026-05-18T02:29:38.807949Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

0ac85dd347dd6e453147b329ff989f2a81497b97bd263ca53bb08e755865943f

Aliases

arxiv: 1407.6465 · arxiv_version: 1407.6465v3 · doi: 10.48550/arxiv.1407.6465 · pith_short_12: BLEF3U2H3VXE · pith_short_16: BLEF3U2H3VXEKMKH · pith_short_8: BLEF3U2H

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/BLEF3U2H3VXEKMKHWMU77GE7FK \
  | 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: 0ac85dd347dd6e453147b329ff989f2a81497b97bd263ca53bb08e755865943f

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "a79b09ae963a0186bfbe4057c58e53202321c7a35560971459369eb89e4d7333",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "gr-qc",
    "submitted_at": "2014-07-24T06:19:20Z",
    "title_canon_sha256": "95bbc151cba8143ba1af0c0531bac8217bd6b78e000c905c1c8b74e5ee67e940"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1407.6465",
    "kind": "arxiv",
    "version": 3
  }
}