Derek Walsh Webb (born May 27, 1974) is an American singer-songwriter of independent and Christian music who first entered the music industry as a member of the band Caedmon's Call, and later embarked
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 0x8c2cc814fb822f21c6838b24eee6078a8ae03f29efd0bd3544bf138b417750d4. Chain 2 (Bitcoin): anchored in block 953625 (2026-06-14T11:37:06Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/2898406a-31b2-4343-a04b-23a47aa4a96e.json and https://artists.proofprofile.net/proofs/artist/2898406a-31b2-4343-a04b-23a47aa4a96e.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 0xd384867c0dea67f6a90122e04e621dc7c9da648fc18ea47a67846815f91357f0. 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/USM2C0250102.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2603f3112d39ea1a448f8b92beffab08321e71f691276325510c0d84c4413d83. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/USM2C0250106.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9fc3e32caf2c623c31568d38668d51141dfee4fc05ed939aac216edbc99e1c70. Chain 2 (Bitcoin): anchored in block 958749 (2026-07-19T16:32:32Z), 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/USM2C0581601.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x72c8e2144baeb5235e5862f56ec503afb934d266e38d00d85c6afcee8cfb4eb5. Chain 2 (Bitcoin): anchored in block 959061 (2026-07-22T00:06:27Z), 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/USM2C0581603.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa603efedd407ef8667251852b9438e759c4ff36f33911ee55020d5fb743038bb. Chain 2 (Bitcoin): anchored in block 959013 (2026-07-21T16:34:47Z), 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/USM2C0701114.
Mockingbird Live: The 10 Year Anniversary Concert
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd3ef8689db3a1122cd7736e11f656183ebd6b32b535d66016687892da912cab3. Chain 2 (Bitcoin): anchored in block 956822 (2026-07-05T18:48:28Z), 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/TCAFK2166520.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x220bd192febd5520fc42df90260e3850a141dc1b7549b536398bf5e15eaa2ece. Chain 2 (Bitcoin): anchored in block 958711 (2026-07-19T09:26:32Z), 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/TCAGY2348809.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7c89079d25e37f6a3d3405e684fca62d804d0a9be2c857468ab5c71354246715. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), 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/TCAHY2459362.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3aaa7fd4d58e1f91f582e6882f44ebd3df38afe57295466b0f23b3b13845f96f. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), 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/TCAJF2507876.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6f26f1a688f32f9035c10061730e5248cd9d0f8fa4595ce21cbd71443527dc8a. 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/TCAJK2551763.
I Was There Too, It Won't Be This Way Forever
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6e664751c7d933bf9a39fd8821403602272e3e5841d500ff716a8d274bfb95d3. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), 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/TCAJK2552858.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf2609db1876aebb9ae30a187a37408614eec706743b35016c5bcb31625bb6e45. Chain 2 (Bitcoin): anchored in block 957772 (2026-07-12T23:31:17Z), 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/TCAJK2554087.
Sola Translove Part 1 (Words of Meditation)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x738cc6e016393f39508e0336e3d13eb86c635bee9841f456a314e96854d43532. Chain 2 (Bitcoin): anchored in block 958180 (2026-07-15T20:37:36Z), 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/TCAJK2554063.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0d99d3fd646ede15009b67b269716603c6ebd69aacbb900f4a16aafb745ec5ae. Chain 2 (Bitcoin): anchored in block 958180 (2026-07-15T17:59:52Z), 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/TCAJK2554102.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7f95f75b42689162ae2402547178bd150c940484ae4bb7a4370372074cde1d6d. Chain 2 (Bitcoin): anchored in block 957770 (2026-07-12T23:17:00Z), 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/TCAJK2554118.
Sola Translove Part 2 (Words of Affirmation)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfee36ef968a0672097b4b0eae6e8f85a6fb99f19d69a0ecc30de2b22a6ae4e95. Chain 2 (Bitcoin): anchored in block 958234 (2026-07-16T03:46:09Z), 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/TCAJK2554136.