Karra may refer to: Karra River, a river in Makawanpur district of Bagmati Province, Nepal Karra block, a community development block in Khunti district, Jharkhand, India Karra, Khunti, a villa
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 0x014fad68029a9ed820c6ed01b7ff34bfca68d5cb9b2c8de848a19875fe1a9867. 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/a70b2d3a-98d0-42b0-88f6-46bb4c8cb4ad.json and https://artists.proofprofile.net/proofs/artist/a70b2d3a-98d0-42b0-88f6-46bb4c8cb4ad.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 0x6d36ecc92e75d2d0304be86f4ec9a96e6184f4ee99dcb557fbefa9ca6e4c5cc1. Chain 2 (Bitcoin): anchored in block 958728 (2026-07-19T12:24:55Z), 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/QZTAU2103490.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x83a0665194eed47bdf49aecc7a6860a39863638d4cb770092c00d7b51acb846c. Chain 2 (Bitcoin): anchored in block 958544 (2026-07-18T12:14:37Z), 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/QZHN52407196.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa899f789d577f5b5072c31c5531cf00d3104e21db5ae3cea97b2e9531717f83f. 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/QZHN52407198.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6b9b4bcea38374e0fe2fec026be2f4c091ecbd745fdfba04687a79603f61d0c9. Chain 2 (Bitcoin): anchored in block 958971 (2026-07-21T05:04:56Z), 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/QZHN52407199.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc95ec5d874d48d7df94bcebc7620810a2277fe93929035b2d2d97d6b9d01d42d. Chain 2 (Bitcoin): anchored in block 958137 (2026-07-15T11:53:35Z), 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/QZTGW2401445.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe9973b13bad5556b32b4943522ad13c4b9f3cd5186c376ef103bacab2ed58962. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/QMFME2372916.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3224e22c3b3a85c656067c23b606ce0a041621bd8431179b6ee100c3d1b52731. 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/NLZ542100863.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7c61e75c516b0c9c57cf57cee4209f8918f6e36616ed82819cfdba0cd61f6490. 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/GBEWA2302841.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x67d29f4a630d21e6ae016b6a9cded01d0d68b37bbf63523f8f3a277975bde1d9. 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/CA6D21700139.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe04c6f77cc88733f6a11d5ff7e12f5258c9c256c4a6db048da16498633dc0d8f. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/USDM31917002.
Silver Lining (feat. KARRA) - Champagne Drip Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf3babf88a040e0486c17d6967c098f33dfc082e9ca23233673a72ba6889d2750. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/USDM32022920.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbd31c91d2e432e1a949371fdf8e73bfd8328c2bbb2f0956634ad820aa1ba808c. 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/NLZ542002209.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x16e00fd6f796cbcfe928441957013243b1107bd568ec59181e793ed0ddee33e7. 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/NLZ542100358.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x22927e087835154940fe8a9dc06ef6e4c2d6271e2812969b3900e6e1ad367ad4. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/USA2P2035888.
Down For Anything (feat. KARRA) - Club Radio Mix
Down For Anything (feat. KARRA) [Club Radio Mix]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4a3cb2d1503528a8506f515edc8ce96b3a2569e454a16d13eb3cb2db3bad5fc6. 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/NLZ541800354.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x44988bf31b9c591af7406e83f006596ffe48ea5b3762a8dc6206e83feaec8c12. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/NLZ541800326.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4de844a95241e6717f789be16b4dca5157151217b1fa6762db1e4265a8f25aa2. 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/QMFME2025530.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x915b603c93f286bf378153024efe5827651d3be50f1239c878136177e0b3ea62. 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/USUS11900272.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe3b8f969a0aafdc0f7604c7a87043c19d67559bf4965875ea4a59fe5ce1b0d56. Chain 2 (Bitcoin): anchored in block 959163 (2026-07-22T20:49:30Z), 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/AUNV01600932.
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
Silver Lining (feat. KARRA) - Kastra Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd347d5db78cf6a9c36c9c0e6b09f27406d35ba92dc7e7de8a59f5748091c52d6. Chain 2 (Bitcoin): anchored in block 960099 (2026-07-29T11:30:20Z), 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/USDM32022924.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xafa238f5c0fe45736d8e08188dcffa626d50be9fadb60c6495501358c6427bac. 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/CA6D21900218.