Vanderslice is a surname. Notable people with the surname include: Howard Vanderslice (1853–1929), American businessman John M. Vanderslice, American soldier John Vanderslice (born 1967), American mu
1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. Open OTSProofURL → extract Bitcoin block number → must equal OTSBitcoinBlock 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Read CopyrightID inside OTSCanonicalRecord → must equal the CopyrightID above 5. GET OTSVerificationAPI → pre-computed 6-check result from server 6. If all match: this entity was registered on CopyrightChains at OTSTimestamp, independently verifiable on Bitcoin
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa1cbe45dd958233d0b526c7cf7f9c47ae56074e759267030ea2fda1a637907d4. Chain 2 (Bitcoin): anchored in block 953807 (2026-06-15T16:39:18Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/e5b52281-8b53-4e7e-9039-0a02e094db59.json and https://artists.proofprofile.net/proofs/artist/e5b52281-8b53-4e7e-9039-0a02e094db59.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Holy Shit: an Exploration into the World of Gospel Music
Hardbody Karate (frat. Prodigy, Conway The Machine & Big Twins)
1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x76ff3f267624df4c68992722acf103c4940686d90f9b136355f1a91b37bb19f3. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USLD91714402.
North American Money (feat. Slug & Evidence)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5113c0bc34521808bc3979b159f2f0a7fa7861309ecab7b544044f7d9020ee23. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USLD91714405.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x62730ae57158d74828777fb50b078e776991ffa13dea90610823f68485f104b8. Chain 2 (Bitcoin): anchored in block 960410 (2026-07-31T13:50:38Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USLD91714400.
1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
The Best Interlude Money Can Buy (feat. Cormega)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf82391839b70305f848a65402c34117a80febe7974eac96d6d652f69e830ed0f. Chain 2 (Bitcoin): anchored in block 960389 (2026-07-31T10:20:10Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USLD91714401.
We Got The Drop (feat. Conway The Machine)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x846d9b5f1b2f807b03f29e3548f77fd1a377753224816d8a46791c55d5f7df3a. Chain 2 (Bitcoin): anchored in block 960284 (2026-07-30T17:23:26Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USLD91714407.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xebd93be743d2175bb5ac0617c2a796dcd56f0229d8b58c5c57805457166a345c. Chain 2 (Bitcoin): anchored in block 956474 (2026-07-03T08:56:35Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZK6P2547762.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5087483c3d23d3b0371c447e349d6fe6927a4e497ad8f6da1cba628c3d7559a7. Chain 2 (Bitcoin): anchored in block 956484 (2026-07-03T10:47:44Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZK6P2547763.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x72206f9555343cb532cc30b296c5941db43ca67e1b736f05df5ee26889ca82f6. Chain 2 (Bitcoin): anchored in block 958224 (2026-07-16T02:28:43Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZK6P2547764.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0537d700af34f8d6f3580ab449411abc67fbf000ca22bf088504f3e6ffaeafda. Chain 2 (Bitcoin): anchored in block 958621 (2026-07-18T22:59:44Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZK6P2547765.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf98b9a215bdbfe5d29eb86987d4018bf723d02ce6cfc24905a6c7e700b820ca5. Chain 2 (Bitcoin): anchored in block 956551 (2026-07-03T21:18:05Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZK6P2547766.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x79f86b5e0a2ff36ee7557d8b6c71f5c29e9e10db89b37adb3860c83b9dffbe03. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZK6P2547767.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x106d903b293e441afa6ab359d68c768b5f4ee948a56c1ec78631153ef1e219ba. Chain 2 (Bitcoin): anchored in block 958931 (2026-07-20T21:15:01Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZK6P2547768.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xea3b0354f2b7772b53aaa7458755ab5fa1c0bb5c53d8ebfc008545ad09dc4108. Chain 2 (Bitcoin): anchored in block 958079 (2026-07-15T00:21:05Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZK6P2547770.