Pith Number

pith:Q43P25F2

pith:2014:Q43P25F2C3U2UKVSOEB5BR7TYK

not attested not anchored not stored refs pending

Cavity controlled spectral singularity

K. Nireekshan Reddy, S. Dutta Gupta

arxiv:1405.6812 v1 · 2014-05-27 · physics.optics

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{Q43P25F2C3U2UKVSOEB5BR7TYK}

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	2026-05-18T01:43:05.953930Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

8736fd74ba16e9aa2ab27103d0c7f3c2b9c4a6b742d31cd8673931b14f7c8a51

Aliases

arxiv: 1405.6812 · arxiv_version: 1405.6812v1 · doi: 10.48550/arxiv.1405.6812 · pith_short_12: Q43P25F2C3U2 · pith_short_16: Q43P25F2C3U2UKVS · pith_short_8: Q43P25F2

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/Q43P25F2C3U2UKVSOEB5BR7TYK \
  | 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: 8736fd74ba16e9aa2ab27103d0c7f3c2b9c4a6b742d31cd8673931b14f7c8a51

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "7000175bf9b09fc59df8c84d9ede5121e081e563eb27c7c55e669ff7bbb75472",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "physics.optics",
    "submitted_at": "2014-05-27T06:59:29Z",
    "title_canon_sha256": "8e864906c45193fb12c6d36e04de3cb352779eb4ca75176ef51da926dcbe6e73"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1405.6812",
    "kind": "arxiv",
    "version": 1
  }
}