Pith Number

pith:TIFRNGLU

pith:2013:TIFRNGLU2CVB6KBQQG2KR3GZDD

not attested not anchored not stored refs pending

Analog Signal Processing

Babak Nikfal, Christophe Caloz, Qingfeng Zhang, Shulabh Gupta

arxiv:1307.2618 v2 · 2013-07-09 · 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{TIFRNGLU2CVB6KBQQG2KR3GZDD}

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	2026-05-18T03:16:48.858379Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

9a0b169974d0aa1f283081b4a8ecd918f78d715b3e09a18c3b00a99ea6e904a4

Aliases

arxiv: 1307.2618 · arxiv_version: 1307.2618v2 · doi: 10.48550/arxiv.1307.2618 · pith_short_12: TIFRNGLU2CVB · pith_short_16: TIFRNGLU2CVB6KBQ · pith_short_8: TIFRNGLU

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/TIFRNGLU2CVB6KBQQG2KR3GZDD \
  | 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: 9a0b169974d0aa1f283081b4a8ecd918f78d715b3e09a18c3b00a99ea6e904a4

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "5cf9df5597a4f8108dfcc007e1789c2e3ab7d595222c2c5afa6f438edb64e41a",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "physics.optics",
    "submitted_at": "2013-07-09T22:51:33Z",
    "title_canon_sha256": "fe1e6f86cb708e0364856f37698ccf3cc948fee52a3e05396057e8b2d6401cf5"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1307.2618",
    "kind": "arxiv",
    "version": 2
  }
}