Samuel Gene Maghett (February 14, 1937 – December 1, 1969), known as Magic Sam, was an American Chicago blues musician. He was born in Grenada County, Mississippi, and learned to play the blues from l
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 0xc7a643d424dbf5d0ea05f9bb7beb56a381d0f4d6e37dcb91ec6549a672b371c5. 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/5f4f0d05-dc51-42a7-b417-0467b6884e51.json and https://artists.proofprofile.net/proofs/artist/5f4f0d05-dc51-42a7-b417-0467b6884e51.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
The Essential Magic Sam: The Cobra and Chief Recordings 1957-1961
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 0x761253a44a4584ba5c5dc2dd023847ff0d226199d92a73c518b774c6d0091864. 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/US2Y30611286.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6170779077d0c1006542912a8f4313f8bd880cb865c5f162df221cbe0017f963. 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/US2Y30611287.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe14156389800bed30dd5795d1a2ac124f1f2f6af0fe3ca31ed983c738b8c2a5f. Chain 2 (Bitcoin): anchored in block 957073 (2026-07-07T18:39:05Z), 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/US2Y30611288.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x35b383cc41920df75ea2bc35a6f0fbd2e077c85ecde2566979fd194c5d8a5082. 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/US2Y30611289.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x23cab483018ef179767f394444e51274efc4e361aaa74d3022b609797f2e9d9e. 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/US2Y30611290.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x10e8c14e099b29218fb15a921ced490ee6e76f8937a2ae9fe0ddfce78b105119. 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/US2Y30611291.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x765f6a5cd0bcbaa0fd20f282923701f89fc78035e98b8d07b3f43166e0420ad3. 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/US2Y30611292.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1f786087efca2262822354f3d732fb65c35f70ef187a9ade52f40a6bcd1c304d. 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/US2Y30611293.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xde6bff0179b13fae642db6ae3a3b021efc2214eb13834cff1eb6b8c9da8165a8. Chain 2 (Bitcoin): anchored in block 960327 (2026-07-31T00:26:26Z), 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/US2Y30611294.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb9a4df62972d18cbdbddc8969ee98c656613c2180c48f49e0ef5ad258b125a6e. Chain 2 (Bitcoin): anchored in block 960105 (2026-07-29T12:35:17Z), 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/US2Y30611295.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x420e8ba9c3c28068f50d982a3c38dd1158f5f9e41db65dcc01b6f4b90f935c57. Chain 2 (Bitcoin): anchored in block 960306 (2026-07-30T20:23:53Z), 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/US2Y30611296.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x70baa809f161fda7a292b3a724784f0e3852e699c3f38d844c29aa73806864f4. Chain 2 (Bitcoin): anchored in block 960203 (2026-07-30T03:35:13Z), 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/US2Y30611297.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8bcae25abcacb7c6340eae47ae98b44eaadc1167e84fadf83fdd73c12aaf1ae6. Chain 2 (Bitcoin): anchored in block 960368 (2026-07-31T08:26:41Z), 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/US2Y30611298.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf1282e4bfd044e2515ca591144fcd97c52f3093866a1648fa5427a3ba730a8f9. 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/US2Y30611299.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x785be3440276d9e822f8827927053d37c20a4be0ca72a4a4836e8125110a9bee. Chain 2 (Bitcoin): anchored in block 960185 (2026-07-30T01:32:48Z), 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/US2Y30611300.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3ba093a7b8c30174e07c962687db6c7de25f7a5b27fe91d6b0fa6b6910eb48ba. Chain 2 (Bitcoin): anchored in block 960368 (2026-07-31T08:26:41Z), 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/US2Y30611301.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6f78df517bcc26cd154f4942389c464d8d63d961fb33803db7322f721b8649db. Chain 2 (Bitcoin): anchored in block 960370 (2026-07-31T08:38:45Z), 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/US2Y30611302.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x50816e0262033d843b8aa95aa583190214ab51f13deb359505abfa040048ff2f. Chain 2 (Bitcoin): anchored in block 960241 (2026-07-30T09:58:01Z), 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/US2Y30611303.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1872a8e17a117680f67ffe462af49a580da1a9c85a1389a622406d96c1a8f2c7. Chain 2 (Bitcoin): anchored in block 960144 (2026-07-29T21:09:47Z), 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/US2Y30611304.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1abbb50d4304cd181211624cfff03d13da75866111eb7c8933b5b0cd46a7933e. Chain 2 (Bitcoin): anchored in block 960187 (2026-07-30T01:34:28Z), 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/US2Y30611305.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x38cc045ac9c206475cfc69a4710814c6e9bb6ceb771cf88a3cf3aef7bc407b80. 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/US2Y30611307.
Everything Gonna Be Alright - Alternate Take
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x273d7a705b9400da830e59b150dbefa14ec13c8f28d734603b00b6c6de977a8f. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/US2Y30611308.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6f4d1078eb3e4895e6f969f1c15a2b0c5adcffef3883aa6db5584ec096a43b0b. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/US2Y30611309.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd882873548d262de2f9596cdfc2ddf80e3a63a616a0a70fb3485fb9cca3c1842. 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/US2Y30611310.