Black Tide is an American heavy metal band from Kendall, Florida. Formed in 2004, the band last consisted of Gabriel Garcia (lead guitar, vocals), Austin Diaz (rhythm guitar) and Cody Paige (drums). T
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 0x6b75b008c6a23cdf978e93ee2f3f0cf49b1b990159879a14eae751a51b3ff041. Chain 2 (Bitcoin): anchored in block 953423 (2026-06-12T21:20:00Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/1109a395-b03a-46bb-9a95-6552df51da64.json and https://artists.proofprofile.net/proofs/artist/1109a395-b03a-46bb-9a95-6552df51da64.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 0x506d9bfece2eb26c00434428f8321e9a79f59d64ecaff7379550ed802bec0c52. 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/USUM70755400.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3682e96a00ec737bf5eacfa29f35d2f870c0473f95b8dcf73eae98f6c980f02e. Chain 2 (Bitcoin): anchored in block 958224 (2026-07-16T02:28:43Z), 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/USUM70755402.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0ac983061185c4824ee3ac5116e3d43e92a3529da7238f990f5d2a2f77968e2f. Chain 2 (Bitcoin): anchored in block 956551 (2026-07-03T21:18:05Z), 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/USUM70755390.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3f775b5d9237725e2352f479e360651ac8f293eba3b3b992f8f79491180e8738. Chain 2 (Bitcoin): anchored in block 958373 (2026-07-17T06:09:33Z), 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/USUM70755404.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3a25054362f80078fdf53dd066f665dfb0a32b2c7395fdc258cd0d36aa8ba97c. Chain 2 (Bitcoin): anchored in block 956404 (2026-07-17T02:37:10Z), 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/USUM70755403.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x506d9bfece2eb26c00434428f8321e9a79f59d64ecaff7379550ed802bec0c52. 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/USUM70755400.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3682e96a00ec737bf5eacfa29f35d2f870c0473f95b8dcf73eae98f6c980f02e. 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/USUM70755402.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe019efae89a4ffcf2156d1d8b74222b34ffa7397b5ada91e81f6d64ad4d180c7. Chain 2 (Bitcoin): anchored in block 956404 (2026-07-17T02:35:26Z), 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/USUM70755406.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0ac983061185c4824ee3ac5116e3d43e92a3529da7238f990f5d2a2f77968e2f. 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/USUM70755390.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9523834da1d8d0729f86c3012c9c1736153003b45fc8b2f0fb2064de6aa4981a. Chain 2 (Bitcoin): anchored in block 958340 (2026-07-17T03:42:48Z), 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/USUM70755401.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x80a8306e8129b43762b4234ed7b582516b4db4c39b37a3929f8c7b09e5aac612. 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/USUM70755389.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3a25054362f80078fdf53dd066f665dfb0a32b2c7395fdc258cd0d36aa8ba97c. Chain 2 (Bitcoin): anchored in block 956639 (2026-07-04T11:19:20Z), 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/USUM70755403.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0d580aea3b1ad82bafbe78d79147690a1b90f9d5bd7cb6aa7d8e517c98ccead8. 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/USUM70804104.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1872c88ee167f1c90a61223486495cc618fd59a544d5a41b508c3a8acb81968b. 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/USUM70813569.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1027b87475471ba7da454a9efd03f3f96ab6e6a1bf2453c64beb3017b4a27e93. Chain 2 (Bitcoin): anchored in block 958110 (2026-07-15T06:57:12Z), 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/USUM71105398.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd76986925bc2a090685b3e5d20a9d991c64334a0df1b6869d7308aa72fa49ee1. Chain 2 (Bitcoin): anchored in block 957754 (2026-07-12T21:26:22Z), 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/USUM71105396.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9f3211ae4b913ff3107d6a8dc7bf7c9e15c88dca8bb359ffd7bf656c147bbd75. Chain 2 (Bitcoin): anchored in block 958104 (2026-07-15T05:34:05Z), 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/USUM71019874.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4174836d35ad8f798bc3ba4bf6612fdf8a646cd73a7a73ed92372b03e4ecb298. Chain 2 (Bitcoin): anchored in block 958074 (2026-07-14T22:45:25Z), 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/USUM71105399.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x92623583208494266831e3f2f5af1e2e41f7a32bf0d9837ee27e0b70d74d6e63. 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/USUM71105400.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1670b709cbf5420347eba7a3e8915ec2e7b72da58e530ed8dcf5531aae23d6bc. 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/USUM71019875.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa6f2bd77b4de59276ee69ac20341f456dc22096d6296a18f17790dd029d78233. 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/USUM71105401.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd76986925bc2a090685b3e5d20a9d991c64334a0df1b6869d7308aa72fa49ee1. Chain 2 (Bitcoin): anchored in block 958095 (2026-07-15T04:30:08Z), 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/USUM71105396.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9f3211ae4b913ff3107d6a8dc7bf7c9e15c88dca8bb359ffd7bf656c147bbd75. Chain 2 (Bitcoin): anchored in block 958430 (2026-07-17T15:33:28Z), 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/USUM71019874.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4174836d35ad8f798bc3ba4bf6612fdf8a646cd73a7a73ed92372b03e4ecb298. Chain 2 (Bitcoin): anchored in block 958104 (2026-07-15T05:34:05Z), 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/USUM71105399.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x92623583208494266831e3f2f5af1e2e41f7a32bf0d9837ee27e0b70d74d6e63. 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/USUM71105400.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1670b709cbf5420347eba7a3e8915ec2e7b72da58e530ed8dcf5531aae23d6bc. Chain 2 (Bitcoin): anchored in block 958783 (2026-07-19T21:20:45Z), 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/USUM71019875.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7d5a00ba87e7991d570fc049edc0b7eb044325a3a9988d8cf08c10f06fb2efdd. Chain 2 (Bitcoin): anchored in block 957771 (2026-07-12T23:27:28Z), 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/USUM71018138.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb193d6e7f4fae1b47e7a151b26a85dcad4df2a54e7607a04a994aff3f7906071. Chain 2 (Bitcoin): anchored in block 956639 (2026-07-04T11:19:20Z), 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/QMHUY1350580.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcdadb1563ca65fa182fa5867a18faa5ede720335efadb0a4db5082b0fdae0a89. Chain 2 (Bitcoin): anchored in block 958256 (2026-07-16T07:22:18Z), 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/QMHUY1350581.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xebb98fed287a10413420855b4dba7cdf2925cfdf5a531aedccf9f474ad6eb156. Chain 2 (Bitcoin): anchored in block 958363 (2026-07-17T04:34:46Z), 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/QMHUY1350582.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1a23b8ede6d4d1229857b1775057fd98a4eb517e2b82de24b71c187d8af45eaa. 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/QMHUY1350584.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4574c73dd3e6da6eab0c55e906b6e5476785131d16b531582e4845269de0220e. Chain 2 (Bitcoin): anchored in block 956790 (2026-07-05T12:31:54Z), 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/QMHUY1350585.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeb88e0a50fc4e9e513187a6ca357af2b905d4dca833ea492c3c58c9b5bccb7c0. Chain 2 (Bitcoin): anchored in block 956402 (2026-07-17T03:50:16Z), 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/QMKEL1500572.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2c4e6a40ad73cadf0a844fa2147409d5717880356f34262de01a02160b94cac1. Chain 2 (Bitcoin): anchored in block 958300 (2026-07-16T16:14:30Z), 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/QMKEL1500574.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9e0ac42be97e316972f34561b129278af1b8445755f66f19ecc112f848a986cd. Chain 2 (Bitcoin): anchored in block 956656 (2026-07-04T14:03:39Z), 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/QMKEL1500576.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x127cf4a46b51e8809e6be13e4aed2c85eb79c55c046f7fc7823b390de7ebd586. Chain 2 (Bitcoin): anchored in block 956551 (2026-07-03T21:18:05Z), 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/QMKEL1500577.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x92a3c2d7c41e5886b55600473874b54a6fe889b9c9c4fb868f4dbb7cab842074. Chain 2 (Bitcoin): anchored in block 956639 (2026-07-04T11:19:20Z), 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/QMKEL1500578.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc80cf6bc2a57bceb525607dee20e53019e4c98d659c71a82f0547f1b521126c2. Chain 2 (Bitcoin): anchored in block 958716 (2026-07-19T10:15:55Z), 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/QMKEL1500580.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x823feb672033ef1a291791dc9e1b4a814b75393898b36feb072641f127853235. Chain 2 (Bitcoin): anchored in block 956862 (2026-07-06T02:10:22Z), 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/QMKEL1500581.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x330f14b2cf585d98426fc3589706c6a5094724daa432f2f050b378752e041df4. 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/USUM70755407.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2c1fea8a5068fedcc48c71e94f89b1430638b24fbe6ef194bda823ce5d68ce4d. Chain 2 (Bitcoin): anchored in block 960340 (2026-07-31T03:15:04Z), 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/USUM70755408.
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