Kathleen Alice Mattea (born June 21, 1959) is an American country music and bluegrass singer. Active since 1984 as a recording artist, she has charted more than 30 singles on the Billboard Hot Country
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 0x4210dae2a4b52053480006e053f329b42e38c54b3cb65194900dcd346e6325b2. Chain 2 (Bitcoin): anchored in block 953408 (2026-06-12T19:28:13Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/98d7f1e0-e3a0-447e-b6d5-426041daec23.json and https://artists.proofprofile.net/proofs/artist/98d7f1e0-e3a0-447e-b6d5-426041daec23.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 0x0eaf32e6c30a02b6150d890e2a39bfd87952c9e39a54a79915400f0f6ae6b861. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), 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/USIR20080288.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x049e12c1f55679a07c50250d7a9e464003ea1358f11a7a526042e9109138621a. Chain 2 (Bitcoin): anchored in block 956474 (2026-07-03T08:56:35Z), 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/USWWW0126433.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeee63d649b856ad56c0f542634b4d7b6439160e95e38eaac353f14b9115b85ff. Chain 2 (Bitcoin): anchored in block 958942 (2026-07-21T02:34:27Z), 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/USWWW0126441.
Church Street Station Presents: Kathy Mattea (Live In Concert)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd49690f8b5590f2e825bdaaf1e58dc70742e754026ec7143f26df730c932da35. Chain 2 (Bitcoin): anchored in block 956856 (2026-07-06T01:25:57Z), 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/USWWW0126943.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb2bbb92567b135b4a4e8f71cdb4ea893168ed1a461632ed03428d1160b35a95e. Chain 2 (Bitcoin): anchored in block 956738 (2026-07-05T04:47:21Z), 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/USWWW0126949.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb29a7d8cc8442caf86e289d0633a561b89414b364c9e5e5c5568d8f936a32f8e. Chain 2 (Bitcoin): anchored in block 958827 (2026-07-20T07:45:53Z), 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/USMR10110313.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa73c6351d1813805e9c8ac0ff918a760e931826eab8ec3581db46dea2c46ddfb. Chain 2 (Bitcoin): anchored in block 958455 (2026-07-17T21:28:36Z), 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/USPG19290102.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8204b0cbddc66259385115e7d4c63f5387a384479dc29e3fab6180d58f908b60. Chain 2 (Bitcoin): anchored in block 958686 (2026-07-19T06:43:29Z), 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/USPG19290107.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x531be7e475485f10d70467cde9e42b7d0f8f301aa01736f56e88a5aed332cdbd. Chain 2 (Bitcoin): anchored in block 956738 (2026-07-05T04:47:21Z), 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/USPG19290111.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfb340d3e4b93cf8fd65598a0eb93d5d72d411eaf9fb9d5488edce4f1dec4c5eb. 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/USMR19300004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcc4cceb9e437f207409b15eec5daeafb937670e9a66f4c1a4a3a0330a67fe688. Chain 2 (Bitcoin): anchored in block 958079 (2026-07-15T00:21:05Z), 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/USPR39401509.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x706ff7d0ff047436721fab75cd0c16181243123214e2491393ffcfaffc4be74d. Chain 2 (Bitcoin): anchored in block 958455 (2026-07-17T21:28:36Z), 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/USPR39300072.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x446de031d53b9a46417f23b86b6e0875f74f3b0680b688f51709bd453c17ccf8. Chain 2 (Bitcoin): anchored in block 956856 (2026-07-06T01:25:57Z), 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/USMR19607298.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1413bfe20ce7019d5d10c1377084d86279f7279d4440a190bef59e2a0cd649fb. Chain 2 (Bitcoin): anchored in block 958444 (2026-07-17T19:12:23Z), 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/GB2GX0913150.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1faa0cac1a8f6c6855ef928f96d64c808a6a226f39542e113df7a343ff4f8fd5. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), 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/USLWX0800001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf01623c64d9b6823d6d2543fa1901aeb2d31146af5fb574d878851cfd13c190b. Chain 2 (Bitcoin): anchored in block 958792 (2026-07-19T22:55:52Z), 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/USLWX0800006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0736598c7717fcb18f6b5de53e92f20d09ffb1b673dd80dbd928b8092b7311d9. Chain 2 (Bitcoin): anchored in block 956856 (2026-07-06T01:25:57Z), 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/USSH51201556.
Kathy Mattea - Live at Church Street Station
Big Bang Concert Series: Kathy Mattea (Live)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8e859f0a7815df606143e6a8a8dd69b5fe77ef4d6bf3f0419ee694d9e5cd872f. 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/USLWX1800002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe8edd1de7fcaac8b4df1bfd967c6c61c226d4b171a4023099ff275258410a4ef. Chain 2 (Bitcoin): anchored in block 958931 (2026-07-20T21:15:01Z), 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/USLWX1800003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x62371c20c73ff60defc5e978e32a085f9513f23d537153920f79da7e4d1c297a. Chain 2 (Bitcoin): anchored in block 956891 (2026-07-06T07:16:32Z), 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/USLWX1800007.
Turn off the News (Build a Garden) [Live]
Transatlantic Sessions - Series 1: Volume Two
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf98cd600b69178289c77b1e2ca7d8a73ce5ff447d8608c78a5d5f8fb06e77b65. Chain 2 (Bitcoin): anchored in block 956891 (2026-07-06T07:16:32Z), 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/GBQSK0901613.
Texas Rain: The Texas Hill Country Recordings
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1899cbf876793e137eaf00130de930dcfad8d8fa53581b7b6ad905d0b1f43676. 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/USFP70708912.
Transatlantic Sessions - Series 1: Volume One
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7feb968c2925449b4c6286e845172b75930a8a9a388bc0902b159e41d12b4d80. 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/GBQSK0901507.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0f0e3ce8c9c9d1d96aab967edc7f479f95d6fb1a103e172200e22dfc80ba598f. 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/GBQSK0901516.
Transatlantic Sessions - Series 1: Volume Three
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x198a6997c3a16e50b0888483fcb52bdef6f89bbc96743ec83804a97f02fcd6c3. 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/GBQSK0901716.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x483945615bb326510c8b4397b62ea8b02d46206a7ec24c5015d32e4c3aa68400. 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/USKO10901543.
Sounds Of Wood & Steel: A Windham Hill Collection
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x05ebe034b31915f5b02f35490f6c1fef8adab5d46db4fe55e90030cc8a21f51c. 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/USWH19701156.
More Than A Whisper: Celebrating The Music Of Nanci Griffith
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3ad3d53c19542e697fa9e20693f917544c76f7f0dcc296cd866fe4213a302ef3. 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/USRO22303811.
Remember Me (When Candlelights Are Gleaming)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x37461362b59bcbd8ae442bfcb0034368615360d1536b011ac7d745c0cbd3c2e3. 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/USA2A1604406.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1ed431679eb39fc9daab078e692098b1139330c008e7d217939278a7c5f7df8c. 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/USA2A1604411.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd42c5df3d5ac33019fe4cb54a75cb40174ab8ba7215b9280b6a49c1c2b364361. Chain 2 (Bitcoin): anchored in block 959109 (2026-07-22T10:16:31Z), 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/USWWW0128246.
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 0x6062f194f504bf2f88378f90c6947ee1281baf8863a9268b9338d49934e59169. Chain 2 (Bitcoin): anchored in block 960337 (2026-07-31T02:51:48Z), 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/USWH10300016.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xde89f76867843eb9f507936a329cd799962b721fc68276c912f1cdb65a7a9cec. 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/USCO92481704.