Pith Number

pith:2FSMVP7S

pith:2020:2FSMVP7SHFGDPFSYAR7CCJKWQS

not attested not anchored not stored refs pending

Efficient Fermi Source Identification with Machine Learning Methods

Denise Costantin, Gaoyong Luo, Haitao Cao, Hubing Xiao, Junhui Fan, Zhiyuan Pei

arxiv:2005.03546 v1 · 2020-05-07 · astro-ph.HE

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{2FSMVP7SHFGDPFSYAR7CCJKWQS}

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	2026-07-05T01:01:09.984404Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

d164cabff2394c379658047e2125568492b996c34442f86dac5913dded9beb01

Aliases

arxiv: 2005.03546 · arxiv_version: 2005.03546v1 · doi: 10.48550/arxiv.2005.03546 · pith_short_12: 2FSMVP7SHFGD · pith_short_16: 2FSMVP7SHFGDPFSY · pith_short_8: 2FSMVP7S

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/2FSMVP7SHFGDPFSYAR7CCJKWQS \
  | 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: d164cabff2394c379658047e2125568492b996c34442f86dac5913dded9beb01

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "d843699f77119d8795221bcd7cdb6fd7f25616d966d59b976ac10b3ec9c3df70",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.HE",
    "submitted_at": "2020-05-07T15:13:32Z",
    "title_canon_sha256": "b2bbe4f95cb9cd4ad79ae73da6d1cda447b01136eb94c9203a3e710da9f5f09d"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2005.03546",
    "kind": "arxiv",
    "version": 1
  }
}