Pith Number

pith:AMDGDLRV

pith:1999:AMDGDLRVVZQSADMFT32UY2E3MV

not attested not anchored not stored refs pending

The 2dF Galaxy Redshift Survey: Spectral Types and Luminosity Functions

B. A. Peterson, C. A. Collins, C. S. Frenk, G. Dalton, G. Efstathiou, I. J. Lewis, I. Price, J. A. Peacock, J. Bland-Hawthorn, K. E. Deeley, K. Glazebrook, K. Taylor, M. Colless, N. Kaiser, O. Lahav, R. D. Cannon, R. S. Ellis, S. Cole, S. J. Maddox, S. L. Lumsden, S. P. Driver, S.R. Folkes, S. Ronen, W. J. Couch, W. Sutherland

arxiv:astro-ph/9903456 v1 · 1999-03-30 · astro-ph

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{AMDGDLRVVZQSADMFT32UY2E3MV}

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	2026-07-04T15:23:02.164966Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

030661ae35ae61200d859ef54c689b6578670fe7a4e8c23e5e992fbfd79459e7

Aliases

arxiv: astro-ph/9903456 · arxiv_version: astro-ph/9903456v1 · doi: 10.48550/arxiv.astro-ph/9903456 · pith_short_12: AMDGDLRVVZQS · pith_short_16: AMDGDLRVVZQSADMF · pith_short_8: AMDGDLRV

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/AMDGDLRVVZQSADMFT32UY2E3MV \
  | 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: 030661ae35ae61200d859ef54c689b6578670fe7a4e8c23e5e992fbfd79459e7

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "afcf2c105a689cfc46600c9289756452f7a10a58d12aadf3e830ca0463c86fb1",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "1999-03-30T18:31:55Z",
    "title_canon_sha256": "1ea935c1e6b88041bdc74869e41a8d502e7a8695f2732a0ffe59844f2d4af671"
  },
  "schema_version": "1.0",
  "source": {
    "id": "astro-ph/9903456",
    "kind": "arxiv",
    "version": 1
  }
}