Pith Number

pith:PKGBDDT2

pith:2019:PKGBDDT2RLKQ3BWLO4Y5DAPKYK

not attested not anchored not stored refs pending

First-light images from low dispersion spectrograph-cum-imager on 3.6-meter Devasthal Optical Telescope

Amitesh Omar, B. Krishna Reddy, India), Jayshreekar Pant, Manoj Mahto (ARIES, Nainital, T. S. Kumar

arxiv:1902.05857 v1 · 2019-02-15 · astro-ph.IM

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{PKGBDDT2RLKQ3BWLO4Y5DAPKYK}

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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.

Cited by

1 paper in Pith

Extreme color-magnitude variability: connection to changing-look AGNs

Receipt and verification

First computed	2026-07-05T04:15:38.653618Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

7a8c118e7a8ad50d86cb7731d181eac28b04db261174b3bbefc504e96e728a6d

Aliases

arxiv: 1902.05857 · arxiv_version: 1902.05857v1 · doi: 10.48550/arxiv.1902.05857 · pith_short_12: PKGBDDT2RLKQ · pith_short_16: PKGBDDT2RLKQ3BWL · pith_short_8: PKGBDDT2

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/PKGBDDT2RLKQ3BWLO4Y5DAPKYK \
  | 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: 7a8c118e7a8ad50d86cb7731d181eac28b04db261174b3bbefc504e96e728a6d

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "503bfdcdf7c7eca7a86963dccd9fb3ea6763283467d686e7f6477b6f4a1cdac0",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.IM",
    "submitted_at": "2019-02-15T15:44:04Z",
    "title_canon_sha256": "b43c931e90d087c4d49fd441a0151fb8e93386f3f14ac3da6a1bc6f658d969e2"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1902.05857",
    "kind": "arxiv",
    "version": 1
  }
}