William "Big Bill" Morganfield (born June 19, 1956) is an American blues singer and guitarist. He is the son of McKinley Morganfield, also known as Muddy Waters, and the half-brother of Mud Morganfiel
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 0x3966be4d8d75ca1cf9c0a17fe5d5fb4592a5a34ddb90da2109a39825c89d7291. Chain 2 (Bitcoin): anchored in block 953641 (2026-06-14T13:54:28Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/3cd91805-f670-418d-a61e-b319a269c09a.json and https://artists.proofprofile.net/proofs/artist/3cd91805-f670-418d-a61e-b319a269c09a.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Blind Pig Records: 40th Anniversary Collection
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 0x69175b7a1d972818869d5e9dcf4e8d6b907f03d9b8fbc51c8141c99f3e19cb70. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/USBP10305411.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb152dc7cc02bb29ddd75a0c79c367783d1bd1b489dd5cd0f37c2fa8a6a9c3549. 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/USBP11516601.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5f447c62d344ab08e7a2fb05f75d5638efa74b3115b2f19050dbd2238ca4ed1b. 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/USBP11001108.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6ad01c88f6bcc15622b7e03364720dd18206a110c41b34a63f51220a75a1e149. 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/USBP10711109.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6ba2a8d3d9686321ff2d456548a17896450b6181e39e00a7e4733b12f03fa12c. 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/USBP11214801.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf27b60edabcbf63459313d6476cb807b8834e2c94478047a264b848677383365. 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/USBP10306107.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x29ee0385d815ece1fa516f4be33cf892c8bdbe438a45aa6b493881b5b4c2860b. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/USBP10372209.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xed0dea8368b41de35f23f632524461ed9112e617f972878752d10eebedea9cfd. 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/USBP11516303.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x86d4b44f47f6fb10e78e04d01dff2d491074f3702983a502d0c12612c83aa2b8. 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/QM6N21720127.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf94095c015fbfcd1fe7cfe45724a28b169a441da32b45a0b7c1a9fc9405ad664. 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/USBP11013709.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbe5d218cf8ff54e169cee7b68ddbcee3f0f0c72e7d2d25c408f7649dee82caf4. 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/USBP11415807.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9f60d47bd46848d760bc2ca3b424dd88ab61c9e8b9408211d9a540f14e65fd0e. 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/USBP10301609.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4791c8256bfedd938627e29bd21558a5fa78465ac5a1afb174a1b722f0492783. 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/USBP11516801.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x094221b85c276f40d62e689cea537e689e15bb080390ec4ed88b119eeda03d69. 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/USBP11315201.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe135fe180cd5cc182c4356bd97dc0bedfccee81993d5a460216f2c23464a195d. 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/USBP10373303.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8a54941ae87991478f373c4830767231940a7774ca3b470bdef8fce213a9e902. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/USBP10300509.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc5cc806841486510b95940f5e4959ffa2716b5cdd46c3ab72a27693b8844f46e. 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/USBP11415811.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbe5d218cf8ff54e169cee7b68ddbcee3f0f0c72e7d2d25c408f7649dee82caf4. Chain 2 (Bitcoin): anchored in block 957075 (2026-07-07T18:50:38Z), 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/USBP11415807.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8a54941ae87991478f373c4830767231940a7774ca3b470bdef8fce213a9e902. Chain 2 (Bitcoin): anchored in block 956894 (2026-07-06T07:53:57Z), 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/USBP10300509.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x845b83db5e224282b19d8cb91fe1fd3cbf13423fa29c5bc5e1c12a72a1faef06. 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/USHM81651571.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xca7d504b0f4f6098098df40548b97324760030807459bfd44d1d5c0f5be7aa59. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/USHM81651574.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9d523ef2437cdf3bd19852e08417fbf1a47d2c1647f18d7f3686f2efd710ac2f. Chain 2 (Bitcoin): anchored in block 957122 (2026-07-08T03:39:04Z), 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/USHM81651576.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5a031cee5a7fff0b8b5bf51b84c060135402c504c22600b7ab8033b129de29bc. 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/USHM81651577.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4f5f7c72dfed8d0182571e9eb4f0da313371fea19883ce9e182375edfa117fdb. 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/USHM81651578.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcf132616ce037fe3b866ec27e749f4fe1459fe383e923d860b97a7589bc67e5e. 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/USDHM1306451.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2d7d5615b03b704da443a2572c149e183b0c1545593db9fcf2ace58339d37b4e. 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/USDHM1306452.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf778492c1c4e12bc0ac1c22e49e67e1ef1ae8b3edb46c454a6c059e1b0514ab7. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/USDHM1306454.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x095b3fae2e526c37b77a2ae227c32c791afcae8595f1a0f3cddc18607249b4c5. 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/USDHM1306456.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc99500795c5a797bdc4bd9c702675fe88a7031d1f4b55fe75714a99a191b41f1. 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/USDHM1306457.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6858990568f3dcd20fab3a82ed16d14d3832166d36e01f93885e585199221003. 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/USDHM1427290.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x319d18fe5827276044d3c0b1b6ef27794702e5c452591fcbb3e94877871934b0. 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/USDHM1427291.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xca1b74049be53c26cff65d6e04c1bcf222f7f637db8748a6e216f5f475a18ff7. Chain 2 (Bitcoin): anchored in block 957052 (2026-07-07T14:50:41Z), 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/USBP10308602.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x212fb978dad1a435001c16652e45bb06f9c9997a4499527c13b30892a8a463ef. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/USBP10308603.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc0a80c978d872a8a4794b13c4e09947fdd462f03a7681d9e97620d585f91e0f6. Chain 2 (Bitcoin): anchored in block 957122 (2026-07-08T03:39:04Z), 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/USBP10308605.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8ba63ae4c767459993dfad5fc3c71d68d2ad783d50644fc5c0e9dcb8ce66d955. Chain 2 (Bitcoin): anchored in block 956349 (2026-07-02T11:34:59Z), 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/USBP10308610.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe25566e83d8715f3f05eb6516e8335eee7de57df3894f3b2c73c7eeee592c760. 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/USBP10306801.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x465aeb21718c9b4fcad5ed8b5f686f73f737292785bf87837034e05667dbd0cc. Chain 2 (Bitcoin): anchored in block 957122 (2026-07-08T03:39:04Z), 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/USBP10306803.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0167054a3f7f9a3eae4e4c900c368a9f018e4db009a9b3c50d67c6abff36bcf9. 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/USBP10306804.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfa6fb2171b5a02138f6cc06cfd91ecbab8f33e5accb638adee727acedc843f0e. 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/USBP10305304.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb55f1acd6c3f8dd8c53888d101d6752789d2a435692edb41f666c50c4efbc5e2. 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/USBP10305312.
If This Is Love…I'd Rather Have The Blues