Pith Number

pith:HQVUNECO

pith:2016:HQVUNECOXLFU3B254UHAS27437

not attested not anchored not stored refs pending

An upper limit to the mass of a close companion candidate to {\sigma} Ori E

Herv\'e Bouy, Jorge Lillo-Box, Jos\'e A. Caballero

arxiv:1608.04028 v1 · 2016-08-13 · astro-ph.SR

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

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	2026-05-18T01:09:04.418570Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

3c2b46904ebacb4d875de50e096bfcdfe65b7010cc8fecbb6560a00edb3040d8

Aliases

arxiv: 1608.04028 · arxiv_version: 1608.04028v1 · doi: 10.48550/arxiv.1608.04028 · pith_short_12: HQVUNECOXLFU · pith_short_16: HQVUNECOXLFU3B25 · pith_short_8: HQVUNECO

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/HQVUNECOXLFU3B254UHAS27437 \
  | 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: 3c2b46904ebacb4d875de50e096bfcdfe65b7010cc8fecbb6560a00edb3040d8

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "363487aae524b2dbcc4902fa45b591af4c838db8185bfd417daad97d4b135e57",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.SR",
    "submitted_at": "2016-08-13T21:32:27Z",
    "title_canon_sha256": "9511ee1aafe58c058fc7b6f3d665fca606e88501a38719b1351d7e96d84b66fb"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1608.04028",
    "kind": "arxiv",
    "version": 1
  }
}