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 0x77050df779a43beda68d35c066d44f5cb0e8f497a8724d4f055c053221236f7e. Chain 2 (Bitcoin): anchored in block 954066 (2026-06-17T08:11:48Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/610d3da4-85d6-4940-8e51-f08fa9bff53b.json and https://artists.proofprofile.net/proofs/artist/610d3da4-85d6-4940-8e51-f08fa9bff53b.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 0x219d5498d693833201c98fd7c2d073fdbbceb02be2a705abfea1699029901503. 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/AEA140301517.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x54691ea16554b7cde04e172f9ef5e1ec368fa05a6c7418f2bab12cc37cc8ea67. Chain 2 (Bitcoin): anchored in block 958733 (2026-07-19T12:51:21Z), 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/AEA140401511.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc780877f56e1c5814bd89ab3c7ed9dfbafd5efa7de689b9b58fc6508796075fe. Chain 2 (Bitcoin): anchored in block 958897 (2026-07-20T14:57:46Z), 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/AEA140401513.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1341331aefa4fc93b173964e4cd82335ff7f3b5731ac459043477ae64d1141cb. Chain 2 (Bitcoin): anchored in block 958388 (2026-07-17T09:14:21Z), 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/AEA140401514.
مهرجان الكويت الإنشادي الجزء الأول ( ايقاع)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3c0408fed5a64405d318e429781125b5a44cc985b3f0cfebd6bf96e2606c22a3. Chain 2 (Bitcoin): anchored in block 959031 (2026-07-21T16:15:11Z), 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/AEA140502571.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x383debc9bb3c161d5ae260332e2563d4521e3bd99f67ea628db6a800dee7b847. Chain 2 (Bitcoin): anchored in block 958468 (2026-07-18T00:27:51Z), 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/AEA140703105.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x244138815ea373d47fcac2f7b3083bf9b840f94afb823ac9300efc1adc023f9e. 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/AEA140703095.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x238aff65596fa85d46f00245f09418d01b898ab048701b22f0f336a0eb6219ac. 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/AEA141105599.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe950c97bcd1bf06f03a59f3e102b2e7e5d26a1015e762f66c99c4726dcda74cc. 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/AEA141605896.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8f5a1397fe58d2b649392ec131eead7dc62f2107d9661925ab55ada70d4c0e59. Chain 2 (Bitcoin): anchored in block 958432 (2026-07-17T15:43:17Z), 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/AEA141800817.
تشجيعات السعودية لكأس العالم 2018 (النسخة الصوتية)
تشجيعات كأس العالم 2018 (النسخة الصوتية)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5f0738f3c6e3491308609177ef3e3bdfef49486df1e0fae93e30af501662b650. 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/NL8RL2448731.