Karina may refer to: People Karina (name), a female given name (including a list of people with the given name) Karina (American singer) (born 1991) Karina (Spanish singer) (born 1946) Karina (Venezu
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 0x2dc5fe5d584a7c0e6680516d3a3d3b351580b1f845ea20ae1517c4f236b0bb60. 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/e1718235-dc84-4d51-8d6b-1e94b7e23a19.json and https://artists.proofprofile.net/proofs/artist/e1718235-dc84-4d51-8d6b-1e94b7e23a19.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 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 0x5926c86aee5d067c1314f39416cce8497312ffb75173d76f412f6469e2a7a2e0. Chain 2 (Bitcoin): anchored in block 958878 (2026-07-20T12:32:15Z), 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/ES5087303380.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5b00e871ebf7d3b136989f1e9982f1585473dabb3f5cb79968a19ed5f5833044. 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/ES5087003371.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0eb02acfb6980742581a3de8864190815fc2972db6152014067352774163e3db. Chain 2 (Bitcoin): anchored in block 958690 (2026-07-19T07:14:39Z), 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/ES5087003376.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x49fb68aec5ab85f3da10980b4a4ca905b8fd22bde0235203582369f9fe28c92a. 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/ES5087303378.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7e695e4d1a961d3cab29215c0ebcfff93c7b0c376dd24fbd99fc5be173e9e1c2. 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/ES5087403385.
El Baúl de los Recuerdos y todos sus Exitos
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8339bfb84ddebf622b43c157f953ee731fef3e131e1d41ce408a3f624d538af8. Chain 2 (Bitcoin): anchored in block 958825 (2026-07-20T04:55:29Z), 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/ES5299400048.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x32ea7ece5f7f0a634809f41e37085a83b59e0cb99c581d3bca195399fbfb2318. 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/ES5299400053.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x93a1ecdef32e3a3e976b14f5fe02a85abe576fa95e913eacfbf94604d8f92b75. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), 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/ES5298900003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x35f7073bc70a32183b6df8a01efd8713e2f3e40fda56fb663ade7c7c061d8a16. Chain 2 (Bitcoin): anchored in block 958208 (2026-07-15T22:40:25Z), 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/ES5089603405.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8339bfb84ddebf622b43c157f953ee731fef3e131e1d41ce408a3f624d538af8. Chain 2 (Bitcoin): anchored in block 958176 (2026-07-15T17:14:36Z), 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/ES5299400048.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcdacf9f999ee9a63724c2851a9a659abdc8b00f2e59c934775346813c8e38c35. Chain 2 (Bitcoin): anchored in block 958682 (2026-07-19T06:17:12Z), 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/ES5299400050.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc25ecdbcae17ed4ba8a4330d2130e55005a73a5e9298b27f84e59e5c6167a9c4. Chain 2 (Bitcoin): anchored in block 958942 (2026-07-21T00:24:07Z), 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/ES5087403381.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x49fb68aec5ab85f3da10980b4a4ca905b8fd22bde0235203582369f9fe28c92a. 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/ES5087303378.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x99883be1b8d7ed17aeb52c80f9f2f750a8c6fb96b561495e7cb4067a4c047d7e. 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/ES5087003372.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x05d66c70833687c128bb89f5aed6db0ec2b2200bbf8cfa68f0cf30977ee1787d. Chain 2 (Bitcoin): anchored in block 958401 (2026-07-17T11:10:25Z), 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/ES5087003374.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x35f7073bc70a32183b6df8a01efd8713e2f3e40fda56fb663ade7c7c061d8a16. Chain 2 (Bitcoin): anchored in block 958720 (2026-07-19T10:53:46Z), 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/ES5089603405.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfa80ca49f7b97b3e22ee64933267e2d4adf307e2dff1ae0a150e1df92a73253c. Chain 2 (Bitcoin): anchored in block 958491 (2026-07-18T04:29:42Z), 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/ES5087003375.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcdacf9f999ee9a63724c2851a9a659abdc8b00f2e59c934775346813c8e38c35. Chain 2 (Bitcoin): anchored in block 959018 (2026-07-21T14:12:28Z), 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/ES5299400050.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x293ae82958a770884ff0f216eb48efeb0d71a458592f3ba3f37d8b6848fceea4. Chain 2 (Bitcoin): anchored in block 958547 (2026-07-18T12:44:05Z), 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/ES5299400055.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x544ab4b9cc4399c1b41c75a51f2a29f2e367e290812a3ce5c5abc4434d5cf7f5. Chain 2 (Bitcoin): anchored in block 959031 (2026-07-21T16:15:11Z), 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/ES5299400049.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8339bfb84ddebf622b43c157f953ee731fef3e131e1d41ce408a3f624d538af8. Chain 2 (Bitcoin): anchored in block 958975 (2026-07-21T06:12:52Z), 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/ES5299400048.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7f379ab11143d2e1f070efe77b966c3f8bcdde37ac1ec6280a087a08a55e091c. Chain 2 (Bitcoin): anchored in block 959018 (2026-07-21T14:12:28Z), 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/ES5299700099.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x24dfe96159f555525432d648e4e5066d889cdbd7e8131a1374db9c381e71dfca. Chain 2 (Bitcoin): anchored in block 958397 (2026-07-17T10:29:45Z), 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/ES5298900087.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x054a137d02d84b5fdc6c2f4d55c02faff5a9ce7f9a9f465c7b1add307d71d5b8. 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/ES5080500324.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcacd68f6924e6e64f23145595baa5186599771c7455f4da769dc6ac39df5a0ec. Chain 2 (Bitcoin): anchored in block 958943 (2026-07-21T00:27:37Z), 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/ES5087403384.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x05d66c70833687c128bb89f5aed6db0ec2b2200bbf8cfa68f0cf30977ee1787d. Chain 2 (Bitcoin): anchored in block 958576 (2026-07-18T16:22:28Z), 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/ES5087003374.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc024959414977f0833a4eb5235c98ad86349e18deb44ab08f7b75e9072b6db51. Chain 2 (Bitcoin): anchored in block 959011 (2026-07-21T13:26:15Z), 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/QZ2J21501362.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x709a0cff98919e50b189748a9ec267e52aa956de5c7fcd05bb82dd4f9f9d5b6f. Chain 2 (Bitcoin): anchored in block 958607 (2026-07-18T21:01:11Z), 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/QZ2J21501364.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x395afc1b9226e34bf1bd1d9d021c8444b04dc40042db71b2c9eebe3e31fcc548. 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/QZ2J21501367.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3f5f466d2fb0247aabfa1f0b81687b29edd4b09f22af790d1eccbd92757e2102. Chain 2 (Bitcoin): anchored in block 958991 (2026-07-21T10:04:40Z), 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/QZ2J21501368.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf708326174cb42768430415ecd469800998c330581aefd6925d0a4b0975ce1df. 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/QMFMF1555824.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcdacf9f999ee9a63724c2851a9a659abdc8b00f2e59c934775346813c8e38c35. Chain 2 (Bitcoin): anchored in block 960153 (2026-07-29T21:57:12Z), 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/ES5299400050.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8339bfb84ddebf622b43c157f953ee731fef3e131e1d41ce408a3f624d538af8. 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/ES5299400048.
40 Años de No. 1 en Español: Los 50's, los 60's, los 70's y los 80's, Vol. 2
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcdacf9f999ee9a63724c2851a9a659abdc8b00f2e59c934775346813c8e38c35. Chain 2 (Bitcoin): anchored in block 960150 (2026-07-29T21:51:49Z), 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/ES5299400050.
40 Años de No. 1 en Español : Los 50's, 60's, 70's y 80's
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8339bfb84ddebf622b43c157f953ee731fef3e131e1d41ce408a3f624d538af8. Chain 2 (Bitcoin): anchored in block 960291 (2026-07-30T18:23:33Z), 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/ES5299400048.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x293ae82958a770884ff0f216eb48efeb0d71a458592f3ba3f37d8b6848fceea4. Chain 2 (Bitcoin): anchored in block 960302 (2026-07-30T20:09:33Z), 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/ES5299400055.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x80519ad7dd971a95a6d92829d403e7046e8f701827df1245a38bfaa3dac58785. Chain 2 (Bitcoin): anchored in block 960441 (2026-07-31T17:29:52Z), 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/ES5089600134.