Tobias "Toby" Gad (born 28 March 1968) is a German music producer and songwriter based in Los Angeles. He is known for co-writing songs including John Legend's biggest hit, "All of Me", the fifth-high
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 0xed93b3d4b576072d2b40689b918399f016cc8f5084709336194c768142e1ffc6. 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/fe05b830-80c3-4307-bcd8-f4fdb5c03edd.json and https://artists.proofprofile.net/proofs/artist/fe05b830-80c3-4307-bcd8-f4fdb5c03edd.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 0x8c4d620afe3d63b5b3818276ba0d080baf064c1b9de4a9d739191e224b9c088e. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/QM4TW2402712.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0533a316a28e994d2a699ad95f0ea2de7e4287095cfedee017b2ae46d1bc1cad. Chain 2 (Bitcoin): anchored in block 960138 (2026-07-29T19:35:34Z), 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/QMFME2352338.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x276679aabfacada0503430b88c9a468abbc6eafc56f4ea0510bee6900037304a. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/QMFME2352332.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf934f9490ede441cb96665c26ec2073fc4e292774dab505ac6cdf2b0948601fb. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/NLQ8X1700161.
Little Do You Know (feat. Keke Palmer & Aloe Blacc) - LIMONADE Afrobeats Mix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb875435d1b4b965dcc7aa56e10509ea9a241ff29d101f878892150d7c5f69294. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/DEE862400122.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x87e27f8e301a14ff0dfc1c08a7c8d2d807d36a35485b1f0d2aa47725fe08f39c. Chain 2 (Bitcoin): anchored in block 960117 (2026-07-29T14:28:24Z), 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/DEE862400124.
Little Do You Know (feat. Keke Palmer & Aloe Blacc) - Chicago Mix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf4335060c5d8c8e22b0ba061a65edefc23a98785add08c805e601546266d0586. 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/DEE862400125.
Little Do You Know (feat. Keke Palmer & Aloe Blacc) - LIMONADE Afrobeats Extended Mix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8c26b8cb70416cf67e9617874debc379380a684d96baf146d89c7f500d45dcde. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/DEE862400126.
Little Do You Know (feat. Keke Palmer & Aloe Blacc) - Ibiza Mix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0bec72929b5e7107d3a3220f4f5262325a1ce84c08726196fa6c8dc1decb83dd. Chain 2 (Bitcoin): anchored in block 959128 (2026-07-22T12:33:25Z), 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/DEE862400123.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x703ffddcf9fee9fabb5d0ed44d1e1b9dc7f49f2c040935a067e303d66b53e4bf. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/USRC11500152.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x28e425fa39428882284a27dbeabaf5bb40839626754aef2dbe5a0474e1051129. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/QMFME2352334.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa83aecd6dbd02edf32cd6d23719c5a6582eb3ce0fcea24ac46ab85f7f853adb9. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/QMFME2352328.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x98a1a9558b8e76604f38dc7d18f5f692ee79d855f2b3501d747d114951fe4bd8. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/QMFME2352343.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf934f9490ede441cb96665c26ec2073fc4e292774dab505ac6cdf2b0948601fb. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/NLQ8X1700161.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc707d65cd8599c584af5de3ae8c558898652c46389b2099292673f3b907e1026. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/QZUCN2201636.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x75f9f82879881539755a262428d52984a333f7223fd7a5e6e51eb2a419f00e4f. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/QZUCN2201637.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x18752cd9981e2923de97fce1fa74d1683aa3c232245e1b53117552824bb5bd6e. Chain 2 (Bitcoin): anchored in block 960138 (2026-07-29T19:35:34Z), 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/QZUCN2201638.
Piano Exam Pieces 2025 & 2026, ABRSM Grade 4
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x039b7a140bd0d46a4c2486df5556bc34e602a34e4c690524eeb03653fb11233c. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/GBEYQ2454521.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x61f8b0178ae5dba472584ae3f986683da1c3aa781c3f05a32b9b8556a3918716. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/QM6N22493231.