Kerida Shushana Johnson (born 15 July 1984), known professionally as Hempress Sativa, is a contemporary reggae singer and songwriter from Jamaica. Her music aligns with the roots reggae tradition with
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 0xb74a31bd99d01b048518ba89becd973b4182a6c1b2f506c79b5565030e8ddd19. 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/c5e51240-38a0-472d-9f2e-e7f151479eb4.json and https://artists.proofprofile.net/proofs/artist/c5e51240-38a0-472d-9f2e-e7f151479eb4.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 0x5ffe0abde55d48efbc003b23eb47ce4c7ea05e1f4f97aebbe320f2d0fbb653b7. 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/QM43B1500014.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x29dabf57043e3fe7222fb5eca99ffc7c6b660a7a3fb0ca7bbd7e73396957837e. Chain 2 (Bitcoin): anchored in block 958846 (2026-07-20T08:14:15Z), 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/QM43B1500015.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd192c0ccb5ec0310c64a9b436b329d19754bb7d81f225488fdd9d35ec1c88031. Chain 2 (Bitcoin): anchored in block 958465 (2026-07-18T00:04:42Z), 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/QM43B1500017.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdee62bf48172e3d142a5c289461b92d22438d1d96196b40c5f7af120b1359093. 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/QM43B1500018.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb8d5c545ccaae6777152f8e4e9b7bb163a0c21fe9a69b7cd724e2aa68854db3c. Chain 2 (Bitcoin): anchored in block 958860 (2026-07-20T09:58:28Z), 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/QM43B1500011.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x08f6457b0d1bd1e725d6126447acd3217bd24f04d898198d257f124366bc1d5e. 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/QM43B1500019.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5ffe0abde55d48efbc003b23eb47ce4c7ea05e1f4f97aebbe320f2d0fbb653b7. Chain 2 (Bitcoin): anchored in block 958228 (2026-07-16T02:46:47Z), 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/QM43B1500014.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x29dabf57043e3fe7222fb5eca99ffc7c6b660a7a3fb0ca7bbd7e73396957837e. 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/QM43B1500015.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd192c0ccb5ec0310c64a9b436b329d19754bb7d81f225488fdd9d35ec1c88031. Chain 2 (Bitcoin): anchored in block 958857 (2026-07-20T09:45:25Z), 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/QM43B1500017.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3d1053810933df84b9ef2ecb93df26271ab8f7988e21b8d4770ac01a35b539d3. 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/QM43B1500012.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb8d5c545ccaae6777152f8e4e9b7bb163a0c21fe9a69b7cd724e2aa68854db3c. Chain 2 (Bitcoin): anchored in block 957895 (2026-07-13T18:41:29Z), 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/QM43B1500011.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x08f6457b0d1bd1e725d6126447acd3217bd24f04d898198d257f124366bc1d5e. 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/QM43B1500019.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeefe67ec3f76e944b8339b469dc65840e98be45980ef6ec47a7a39f49e598069. 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/QM43B1500020.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdfece58aefc44ad930a9f70b9e6cae7c75c3c11bf438b673a8abcaff6f18a884. 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/USDY41887184.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd695dcf0dce0acd7626bd670c31eed841eae28c3cf256700ce6b33fd7452dc9d. 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/USL4Q1855522.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6fac5db281774f4df58cab6e0bc4d982ab51902f06fdf5396547e33aac26722f. 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/USL4Q1855524.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x618855cfeaada3f18599e1f493ea02546a79b7bdc8d3431364d5bb46781c4f2d. Chain 2 (Bitcoin): anchored in block 960145 (2026-07-29T21:13:37Z), 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/USL4Q1855521.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd695dcf0dce0acd7626bd670c31eed841eae28c3cf256700ce6b33fd7452dc9d. 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/USL4Q1855522.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5a23370217e98c9faef6292b670410641b6f917f6e7ff38f3209936f7dd9414d. Chain 2 (Bitcoin): anchored in block 960288 (2026-07-30T17:41:38Z), 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/USL4Q1855523.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6fac5db281774f4df58cab6e0bc4d982ab51902f06fdf5396547e33aac26722f. 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/USL4Q1855524.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x72cde5f16be50fe7a9c2f04e69fb0e2d52d01f89c20eb0fb8bd8c5f350710829. Chain 2 (Bitcoin): anchored in block 960229 (2026-07-30T08:30:10Z), 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/USL4Q1855525.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x290b3acb6fd312b1e19a1b2d5863877ea472280e79eb9cf8d08b467055d16623. 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/USL4Q1855526.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x387291f1519ec8a82f3f61e4bef97e1a59abd0570f1f78975d64aa6f044a46f6. Chain 2 (Bitcoin): anchored in block 958461 (2026-07-17T23:18:11Z), 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/QMEU31923205.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5c6d4816884b86dddbb734303c00463c7a1dcb19a7e610b693147a3ec315c7e0. Chain 2 (Bitcoin): anchored in block 958428 (2026-07-17T15:15:14Z), 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/QZK6M2137790.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf95e0cf5b166d13f88934386a7e7edfd9ce198ed5655743e98afeb05f0f6eb58. Chain 2 (Bitcoin): anchored in block 959043 (2026-07-21T18:40:26Z), 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/QM43B1500034.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc8c155afcd0c8b5638c5552fe81cb89c9230de201b2e0b8397895749eceaa535. 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/QM43B1500028.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x61693350b1cb0e236a031f60a4d712b12b842b28dee4cab76a3210bdfa96d6a5. Chain 2 (Bitcoin): anchored in block 958571 (2026-07-18T15:39:25Z), 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/QM43B1500027.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xec98e2c646e06244aab609e93cbe8605e30cc7a7e624c8037398eaea59a11979. 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/QM43B1500026.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf884239693ab3d55096aaf1b4eb4571ad6c7c186dbd702774a16efd6628d7e41. 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/QM43B1500033.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x595268f4f53a0b8320cf3f8d39512fb8c02a360406bdfd88762a84e494c6856f. 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/QM43B1500025.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2feec4b9be4b02f420c06127c012fbd227e05ac88a7990c06e1a221642e94831. Chain 2 (Bitcoin): anchored in block 959065 (2026-07-21T22:00:50Z), 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/QM43B1500022.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa5a27022d26b67f280cc1188b821ac22b11fee3baa6a8ff1e9cfb0886578c502. 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/QM43B1500029.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x62c0669221aa6571b6eb63f22a9dc13b5aa8eefcd428d1ac484994eb4e19880d. 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/QM43B1500030.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf2e9da65e60d2a846d758b14182eb104ee3e4f456b98dd44e91e72af53146fc9. Chain 2 (Bitcoin): anchored in block 958905 (2026-07-20T16:14:34Z), 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/QM43B1500031.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xba772089c6b154d1f9ba89cc9d9053090ab632878bded8bbcd765f6f0ca8fa05. 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/USHM82155652.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbc9e07a643b6c8e1e022c1f88aa6b0dbf2c62f8ad548701e8d86dddca60339bf. 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/USQY51613801.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xba772089c6b154d1f9ba89cc9d9053090ab632878bded8bbcd765f6f0ca8fa05. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/USHM82155652.