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 0xc98136800fc30071b7dfef82067c4104a7bc959b43be650bb52fab67170ee0aa. 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/e82ffb17-8f55-474d-bdf8-60b8f72898dc.json and https://artists.proofprofile.net/proofs/artist/e82ffb17-8f55-474d-bdf8-60b8f72898dc.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 0x6945cbee2e487e9306460862b981c2c1a182285249cda986f9bd77d9dceaed70. 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/MYIR11300096.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x44ad934ba3591f41f232e9c31dd20d4b9bc5638116ecca741b98386482aea8c0. 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/MYIR11300099.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf5b32fdf098dc9f7e5d44bb8d2e15487b3f4a652a43856d1a2a990dd491af957. 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/MYIR11300101.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc6128c5a26c4f5e856d6187a7afc17dc5cd0b80a8ac63371dc44c2358043580b. Chain 2 (Bitcoin): anchored in block 956856 (2026-07-06T01:25:57Z), 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/MYIR11300103.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4699f778200e9142b463c8859e83f8d8fc402c94cb4fb170405570cdfa77fad3. Chain 2 (Bitcoin): anchored in block 957863 (2026-07-13T14:41:15Z), 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/MYIR11300105.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x26763331f7788df859d5b8a1d0a2e231bcfc0a6ba71327120bef05aec5e34ce9. 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/MYIR11300106.
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Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x48bf5bbe4100bfc8be56f041f475a279ac4be91f085c227ff6d81b55097067ec. Chain 2 (Bitcoin): anchored in block 956776 (2026-07-05T10:59:37Z), 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/MYIR12000003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6417c4cc8355a85327db47960fdc05773552d24e4ca960c1596f2bacaa916c82. Chain 2 (Bitcoin): anchored in block 958880 (2026-07-20T12:33:53Z), 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/MYIR12000004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x176ecd0ec419d486202394bf65758b1a8881cd2e3fd4d9f6ece74337ed52b7df. Chain 2 (Bitcoin): anchored in block 958639 (2026-07-19T01:18:30Z), 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/MYIR12000005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd63054077ac87f37f5b1a3985a99985524da157ae6994585fdb92e6c9496d8c7. Chain 2 (Bitcoin): anchored in block 958650 (2026-07-19T03:36:41Z), 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/MYIR12000006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe3813a5b83b79dec283c9ec400afffd8c6e6c72d2732f80f99f5b31f40c52a48. 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/MYIR12000007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x28fd9d50da77d4d90f91e1b0b7d6b2d491fceca6f8bea44a395eb011f4f700c5. 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/MYIR12000008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb5ebefaf3ed3072e3d1bf22972d336c12f6bfd6e3eaae1235e447a3f39367147. Chain 2 (Bitcoin): anchored in block 959076 (2026-07-21T23:41:40Z), 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/MYIR12000009.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa0a8e9826f05642d98c91c8b791c245759374c879c3397cee3cfab1227312c95. 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/MYIR12000012.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfcc4a183b343f2ea735f3f4966582de374409c8cdf90d7a0560af0e73e0a1daf. Chain 2 (Bitcoin): anchored in block 958842 (2026-07-20T07:48:27Z), 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/MYIR12000017.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2b3be6d50aed159e90f16383c296c7f2273c96395d69d60d0f310002d3d24125. 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/MYIR12000022.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd87aa9c71ce84664f5605c2b1243d6a7c2fa36acd92ec11f5f9ad244e4ba981b. Chain 2 (Bitcoin): anchored in block 958194 (2026-07-15T20:32:27Z), 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/MYIR12000026.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf0a040abba365e080f7cd6c508e5e8997a6cb8cc6d1d08161e3bee7f6443c472. Chain 2 (Bitcoin): anchored in block 958202 (2026-07-15T21:23:21Z), 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/MYIR12000029.