A nasheed (, ) is a work of vocal music, partially coincident with hymns, that is either sung a cappella or with instruments, according to a particular style or tradition within Islam. Nasheeds (or
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 0x10a4832086a049a5f298a6ca2f64da2b58568cf2f3c315240c0e6ffd349377ca. 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/4b619a25-bd9f-4f72-8a0a-ec74f0dc55f7.json and https://artists.proofprofile.net/proofs/artist/4b619a25-bd9f-4f72-8a0a-ec74f0dc55f7.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 0x6028fad189d2612e67f0a79183139984fb3cd8ea808b8e26b0c015a024dbdf8f. Chain 2 (Bitcoin): anchored in block 958716 (2026-07-19T10:15:55Z), 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/GBSMU9183364.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x430c621db77749b5708e77b5d2c303b7ff9e18ed66f4532eea9f4966ab079146. Chain 2 (Bitcoin): anchored in block 956402 (2026-07-02T22:05:07Z), 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/GBSMU9457699.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x343c8a0bdae5856e74cd6d3df26393666f69f2940a93ea3b2a1d2417b0ef1618. Chain 2 (Bitcoin): anchored in block 956422 (2026-07-03T01:01:38Z), 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/GBSMU9183313.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x29bd4f2279a8602a36b5b11850e44398168303a120b7c5e7f78870cf2e62ed30. 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/GBSMU9828879.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb9b0e2b7812b50e39d877c3e08b4a8be97f215434f9b91d54357468969b215b9. 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/GX4R52162966.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcf53963b9636d485d5d118fa73274df22932e7beae27a4a67f43629509917b4f. Chain 2 (Bitcoin): anchored in block 958404 (2026-07-17T11:34:58Z), 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/GX4R52163015.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfdcb84ce3c4242b0da6608d9c89f0be18e51a062c972663208fe6ad43f2dede6. Chain 2 (Bitcoin): anchored in block 958074 (2026-07-14T22:45:25Z), 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/GX4R52166656.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x59a1f7fbd5ceaa9f7ae3d829df5915f57b407d37e9b6260112b957405e7b9fdb. Chain 2 (Bitcoin): anchored in block 956402 (2026-07-02T22:05:07Z), 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/GX3HH2278473.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2843e9d2502f442cbc30e7b91ef6dc45ec281edbe6f4d1c0603da57443f8a722. Chain 2 (Bitcoin): anchored in block 958340 (2026-07-17T00:53:26Z), 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/GX3HH2278530.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x56e1b2049e66243d160d53042434f09f3bbe7e03136632f6503a4e0803897c8c. Chain 2 (Bitcoin): anchored in block 957750 (2026-07-12T20:39:38Z), 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/GX8LE2283077.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xac931592c710591e0d411f9ef72f9aa8be9545ef6d5e38f145a2bb834509a161. 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/GX8LE2226644.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe98513b9866f0a34b5076e2b5ff0ffb8fb3b193783423764e8b4e56c65a3235c. 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/GX8LE2220709.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc4533167df259ac1150b87825587d1e7c9f496708b6c80a73183966b0aa0f70e. Chain 2 (Bitcoin): anchored in block 956422 (2026-07-03T01:01:38Z), 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/GX8LD2322868.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x39fd408ed33295b8d4fc8f11c52b7dcaaecf9e931eba59263c4faf609891a7a9. Chain 2 (Bitcoin): anchored in block 958985 (2026-07-21T08:39:15Z), 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/GX8LD2303207.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1034dcbd89af6fba438b5d9804edcd008cf849869b6d6bcc75dd205f997e02d7. Chain 2 (Bitcoin): anchored in block 958263 (2026-07-16T08:19:47Z), 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/GX8LD2361494.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb281fa6ae1d65ae74249063ce1d6cf0c936908d1b7ca3b687b3136850a95ad43. Chain 2 (Bitcoin): anchored in block 958607 (2026-07-18T21:01:11Z), 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/GX8LD2331219.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0c8d296c17cdff5c7cb4ea5017a7c20a0444396144b86a93467dd3b93c147c67. 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/GX8LD2304755.