Kaliffa Olle Karlsson (born 20 December 1979), better known as Kaliffa, is a Swedish singer. In 2017, he released the music single "Helt seriöst". He performed the song "Salute" in Melodifestivalen 20
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 0xc2ba537f557fa0c8a5cb5aecbc151b31178806421900a86fd54d5a0950f4e6e0. 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/93e23eea-9e45-414b-8972-dc3f3b5ba9b0.json and https://artists.proofprofile.net/proofs/artist/93e23eea-9e45-414b-8972-dc3f3b5ba9b0.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Gollibe (feat. Teni, Kaliffa & Imenella)
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 0x9b1028d81d757c8e3e46a178b6ed50186d061f939b96e0bfce3ac6518bfa98a7. 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/SEPQA2300137.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x962682f42bc70ceccfdd773e7e7ca3f6b3c2d6be598fb81a85150416ed807e53. 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/SEUM71402276.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x23a2c5cbf5cd75dea1f68b96a8cecb4ef3156492974092220dbe432b921adc0a. 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/SEYJX1100201.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1532a48cbcae3ff8186d06e03971aa82495f3862b7cbebbdeb9317f992060887. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/SEUM71600559.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x86e3187b5019792ebc887832c73279e66ab467e58586453ff99d1642e5a11fa3. 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/SEBPA0700086.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeaf44513e121c7fb761a937af2af271fdf692f9cbe7fffab70957c596592c79c. 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/GBX721800068.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1f6155fdd29f30784c675f7f2da85648a8f267ea68c2380c08b068cada20efa8. 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/SE6I32400302.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5c050e8bc58e57fdaccafcb441d0e551a13f5d07f773dd2c88cde9df663a6da3. 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/SEUM71700464.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc2c10d3ac90ad684220158fd805f506ea66d6b2afb3d241de80395514527d192. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/SEVQF1600701.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xadda0a86a490b5d97f3a6d77abc27cce9d44957837a6c41038a72c6c205c8dc6. 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/SEUM71600872.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x04b02434933ab31636fbf1ec89730d157ae7c5e27fc2202d37b218da4650bb69. 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/SEUM71200987.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe955755fddcf444edf5018bf0a8150c01f9e158c51bca1b2381307a6736a7945. 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/SEUM71200992.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8be4713aec351332f3fee9df494f93fd41be85d7ae2e3f5c08333fc240404801. 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/SEUM71401592.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x46735baec9af3b2df647105a59d96f1387b100d4b86d4e721becaf95be69fbfa. 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/SEUM71401594.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcb514d240e28c84761685d0832a07516bb735a8e7deb8139ed0122d5e157722c. 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/NOWAT1803080.
Äntligen solsken - Hoffmaestro Reggae Version
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc35e274de35982dd22908f56bd96590d865d91a834d9586fc34df782bf910137. 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/SEVJH1304301.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x96fff2ed23a0017e65d00e0109c26b7334d8145cd0cd440ff5fbdc52f070aacb. 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/SE56I2000116.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x97bf34dab310395986b8cbb52125f8539a2e9eabe09803464e0669e48fbc4809. 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/SEYJX0900106.