Alif may refer to: Languages Alif (ا) in the Arabic alphabet, equivalent to aleph, the first letter of many Semitic alphabets Dagger alif, superscript alif in Arabic alphabet Alif, the first lette
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 0x435681f1200fc4812b051f796f30678c47750f79243732e5a0d83f38b171d216. Chain 2 (Bitcoin): anchored in block 953408 (2026-06-12T19:28:13Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/cb25627f-c488-4163-a081-386fc2db1d43.json and https://artists.proofprofile.net/proofs/artist/cb25627f-c488-4163-a081-386fc2db1d43.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 0x8e795f47bd5e2ae0eafff153c1c165ae9d51b84f707eb6c50218349af6e31bab. Chain 2 (Bitcoin): anchored in block 958749 (2026-07-19T15:48:23Z), 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/DGA0L2493108.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaddfc8def8dc1305e418f11873b2bed4e383f47ef4821b557bf735d221476076. Chain 2 (Bitcoin): anchored in block 958335 (2026-07-16T22:37:47Z), 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/GBLLT1707282.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb2cbb0a7b35caac13aa9a2d38e4815840521a289abb698214488e593108aaccf. Chain 2 (Bitcoin): anchored in block 958538 (2026-07-18T10:30:13Z), 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/INO131603276.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb2cbb0a7b35caac13aa9a2d38e4815840521a289abb698214488e593108aaccf. Chain 2 (Bitcoin): anchored in block 958746 (2026-07-19T15:36:35Z), 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/INO131603276.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x857e592b8a78147158e982719bfbe901138b1c2eafdd12f04512c73fff177a41. Chain 2 (Bitcoin): anchored in block 956822 (2026-07-05T18:48:28Z), 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/GBLLT1904195.
Malaal Kya Huwa (Live at G5a Foundation)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9283806da0e2d7ace904404fa18e245394af39e5cb186428beef87159fbc80b0. 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/FR26V2029993.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfe1f969850938a530877b0c31c9455b4f3c704381bcb2c92f7cfc2f22120f146. 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/FR96X2187490.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x43d3c736edb2b8da67d83a1e245476ac7b502c1264a1b7590d6536e5cf3603d2. Chain 2 (Bitcoin): anchored in block 958378 (2026-07-17T06:45:39Z), 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/FR96X2187491.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x049cf5c66717902d83e97d32c95e0e11b40127260eedbe4097c609d0befe0f33. Chain 2 (Bitcoin): anchored in block 959084 (2026-07-22T00:50:00Z), 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/FRS182137981.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9a096251af659befd289c33bee412898bb1739a1c0ece11156bca1017c9e2251. Chain 2 (Bitcoin): anchored in block 956822 (2026-07-05T18:48:28Z), 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/INUM72300146.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x81877824ea4a1b483ae5961651d1b8edc2e564c5249bc947b21dec994ede1ad0. 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/DGA0H2419421.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x10bb88403e3eec52501f0253d959106d33803f27815b965ab13c7bcf15b18c51. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/TCAJG2501137.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x65b7d3dc56a97a83e48d1309dcca1bece9f1fd0c0a23b3927366d3f1c6786906. 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/INUM72300430.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe5f9f14839f9b789a3993d0cb9a06193f49d4ede11f5d04dcac247c456fdfded. 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/DGA0R2477833.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2bfa915252aae3c99d1d8c5b949fb9c28d487d284493920be073ac8853edc3aa. 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/DGA0R2477834.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4be76c74d57ea3bb5facb10a8535472cb74c8b0cdea9b7db59c386f8c1aab279. 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/DGA0R2477835.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb4832601162242d716613a3b428b548d5b81a062507bc63bb99126b932765fa4. 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/DGA0R2477836.