Spargo is a surname. Notable people with the surname include: Bob Spargo Sr. (1919–1994), Australian rules footballer Bob Spargo (born 1939), Australian rules footballer Charlie Spargo (born 1999), A
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 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
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x28fb038450f91493b2824b9f572323b99d7c3ff019c0c15724de162164ae82c2. Chain 2 (Bitcoin): anchored in block 953407 (2026-06-12T19:24:56Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/172b0021-99d7-40b7-8d81-c9831f0834f1.json and https://artists.proofprofile.net/proofs/artist/172b0021-99d7-40b7-8d81-c9831f0834f1.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
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
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x75976a4eb73077f2ec2375e6da443eba3b630b4d7d37a0adea6bf443740b4651. Chain 2 (Bitcoin): anchored in block 958286 (2026-07-16T12:43:37Z), 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/NLC288000092.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcc5e3e2e5dacb193cf22ec6c8d7f204f0eec00ffffb8a0bd09e05071d4c38cec. Chain 2 (Bitcoin): anchored in block 959114 (2026-07-22T08:41:42Z), 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/NLC288000087.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x511da22c6f630d4243a4d4b309263f6c05a4c47e4865abf3ef335cc395bbefc5. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), 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/NLC288000095.
Head Up To The Sky - 12 inch (Remastered)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8a9c4ad38c606ed6aa4107f81a634bbdfebf85be5021e63c40984353a1270fab. Chain 2 (Bitcoin): anchored in block 958771 (2026-07-19T19:27:18Z), 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/NLC288100167.
You And Me (Spargo vs Jazzi Bobbi) [Remix]
You And Me (Spargo vs Jazzi Bobbi) - Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd8c4d5a8870aaec7b341131a38fd54f4681ca60cdb160d832116776e36aef9b1. Chain 2 (Bitcoin): anchored in block 958202 (2026-07-15T21:23:21Z), 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/NLC281800010.
Just For You And Me - The Greatest Hits Collection
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x236e7d60d3989acfc28a0a33aa5c83937c1c6f0117e40b6812ed1ae61e23337f. Chain 2 (Bitcoin): anchored in block 958955 (2026-07-21T03:03:40Z), 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/NLC288100164.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x518b86b3b82827069853403b70c669e5eaebd9e132b0e57279579de62278a82b. Chain 2 (Bitcoin): anchored in block 958110 (2026-07-15T06:57:12Z), 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/NLC288200145.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9abea64f877b33f4db54667b7f67f91aafc15a27466d273214ba58f30207d1cc. Chain 2 (Bitcoin): anchored in block 956889 (2026-07-06T06:56:49Z), 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/NLC289900015.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xde4641f5cbe99b3819ead64d61246f9711847c2cc493ff8b5c1d9ba09f07a827. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/NLC288000122.