Michael Frederick Krol (born May 19, 1984) is an American musician and graphic designer based in Los Angeles, California. After releasing two albums on Counter Counter Culture, Krol released his third
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 0xca975d6787f9adcda16a9b3b5908f4c69c4b1a48a7dd367741a46e07a79835d8. 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/711d3dcb-2e05-45fb-acd7-2fe6d9ee8f2f.json and https://artists.proofprofile.net/proofs/artist/711d3dcb-2e05-45fb-acd7-2fe6d9ee8f2f.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
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdc4f8a7204055c4666abc7818f983bd0d6d5b4446f654e126c6e32d285d6b305. 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/USMRG1758903.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3edd5f33f767a7790761c549901949590c80dfa137456c58b40a4e53a3baec86. Chain 2 (Bitcoin): anchored in block 957891 (2026-07-13T18:21:04Z), 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/USMRG1758912.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x93cf1e921c90822059df1dfafb3d001f18efc8fde084c1fb2889e7f3fbafd1d2. Chain 2 (Bitcoin): anchored in block 958202 (2026-07-16T00:00:15Z), 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/USMRG1758913.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x11e20494b053abe5ca5aedcb916239b0c209a0532b43d2426a93413a4d2182a8. 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/USMRG1758914.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc1884206ebcec5ba9521a3f3c652b40fa9a451d30ac27fa2e5c23b6933481e68. Chain 2 (Bitcoin): anchored in block 956476 (2026-07-03T09:04:44Z), 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/USMRG1758915.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc30603560fe2f55e62775d2a81123ba4c76942d4f3992af94b6fcd18abc8ad40. Chain 2 (Bitcoin): anchored in block 958383 (2026-07-17T08:20:01Z), 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/USMRG1758917.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7b9f2ea647b6046ff011b0f064514883142e0aef93f8f18bc71a954f021458a1. Chain 2 (Bitcoin): anchored in block 956476 (2026-07-03T09:04:44Z), 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/USMRG1553901.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x15fe646d4424c1cae58697d46894f4bb08693bc9de8ab52c8deb1c9686878dc6. 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/USMRG1553903.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x97373776fcb786cd7454408e9090bc21e4e42a0cab6f1809649749a3080a6ae7. Chain 2 (Bitcoin): anchored in block 958137 (2026-07-15T12:29:43Z), 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/USMRG1553904.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc58731468ccdf72062e18e89ab0d61a11c5a6e3a7759b645b24ac80b93b87aa9. 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/USMRG1553905.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb3c82ac2293ffe41f5fb4730d6f62e7dae53ff00762bd58e8bf186fc42b245aa. 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/USMRG1553907.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x818949165d5c8d0a14ca0f43dd73b3eee4a78060c453aad1da5e329940a1825c. 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/USMRG1553909.
Mike Krol Is Never Dead: The First Two Records
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1d1989c0c32400d9da88c9ab4d770120dfdba6172d8b19023a4f18293d411b1b. Chain 2 (Bitcoin): anchored in block 956776 (2026-07-05T10:59:37Z), 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/USMRG1758902.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x045d2cc93e7ec30d12cdf57a5faaa6c5408cdce683fde96433735d41bfc99950. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), 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/USMRG1758920.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x98cd8a11573354e9b9406c88a588d0aa4208db06706a75aedc974e9ecea433c2. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), 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/USMRG1758921.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x676219d6bbdb5febd41be95743950842afc87d6ccea805ae42c5dda4909693e5. Chain 2 (Bitcoin): anchored in block 958749 (2026-07-19T18:31:24Z), 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/USMRG1758922.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd7c758fac9e8816975e2195f1d30df36491d4cb88158c37c896d60e8a7ad9a27. 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/USMRG1758930.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfa6568e2e8dd812fe1108cd53a61e1870aa4bbfc9184b91b70a3ff5054e0aa1a. Chain 2 (Bitcoin): anchored in block 958650 (2026-07-19T03:36:41Z), 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/USMRG1758931.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1407fa2a626a410dfb77f7fad678de22c1311c9710014af357660d380a0d0f3f. Chain 2 (Bitcoin): anchored in block 956728 (2026-07-05T01:43:49Z), 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/USMRG1866902.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1407fa2a626a410dfb77f7fad678de22c1311c9710014af357660d380a0d0f3f. 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/USMRG1866902.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5a98b7b9dd561c176244789e78a3b74afa8154a584cbc8aa38b635f423691bb4. Chain 2 (Bitcoin): anchored in block 958331 (2026-07-17T00:48:26Z), 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/QM99V1810506.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x500d67d4d0656729f91ce85976abc26cc7055e31c4fca98bdf060ccc5a37e603. 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/USMRG1960908.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x195c055d1e824e12217a00f37ddd24060b474bccb0ce25e883b9f16915951dba. 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/USMRG1960910.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc33add87d1e56cacc503476e974a8d168c1e9f911ffb5a049f5dede3e48d1e05. Chain 2 (Bitcoin): anchored in block 958905 (2026-07-20T17:45:12Z), 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/USMRG1964403.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc33add87d1e56cacc503476e974a8d168c1e9f911ffb5a049f5dede3e48d1e05. Chain 2 (Bitcoin): anchored in block 958870 (2026-07-20T13:51:28Z), 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/USMRG1964403.