Pith Number

pith:7ORXB2RO

pith:2016:7ORXB2ROISRGKHYAUBDI3H5AO5

not attested not anchored not stored refs pending

Proper image subtraction - optimal transient detection, photometry and hypothesis testing

Avishay Gal-Yam, Barak Zackay, Eran O. Ofek

arxiv:1601.02655 v2 · 2016-01-11 · astro-ph.IM

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{7ORXB2ROISRGKHYAUBDI3H5AO5}

Prints a linked badge after your title and injects PDF metadata. Compiles on arXiv. Learn more

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	2026-05-18T01:02:45.205784Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

fba370ea2e44a2651f00a0468d9fa0777703639d358d4ddfef19cff60016346e

Aliases

arxiv: 1601.02655 · arxiv_version: 1601.02655v2 · doi: 10.48550/arxiv.1601.02655 · pith_short_12: 7ORXB2ROISRG · pith_short_16: 7ORXB2ROISRGKHYA · pith_short_8: 7ORXB2RO

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/7ORXB2ROISRGKHYAUBDI3H5AO5 \
  | 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: fba370ea2e44a2651f00a0468d9fa0777703639d358d4ddfef19cff60016346e

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "6d6fa52a2f59944e07923946429fea33edd08ae1edf429f5da757b01e0312a62",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.IM",
    "submitted_at": "2016-01-11T21:21:13Z",
    "title_canon_sha256": "48355b27a3d1f86676cfed979b7f093405bd94dd54c584eaa8249e86f98ef23b"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1601.02655",
    "kind": "arxiv",
    "version": 2
  }
}