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 0x75c55ecf33e14c03d1fdb2240df1cfd826d8a99daaa11b3df8f11ec0f038a1b3. Chain 2 (Bitcoin): anchored in block 953695 (2026-06-14T21:42:01Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/6f86a42a-07e3-44ae-bef2-51839ff19b6a.json and https://artists.proofprofile.net/proofs/artist/6f86a42a-07e3-44ae-bef2-51839ff19b6a.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Discover Music of the Middle East with ARC Music
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 0x641364a2c8d9eb1003393d844203e0bba65ef6c2b999729757628f34e307a66f. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/GBCKG0900502.
La, la, la, omri manhounik (No, no, no, I would never give you up easily) (Egypt)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb773df68fdc381f1b0c0a7543004e54a1f3c02a02e41debc87f326c02735e49d. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/GBCKG0900743.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x197efbbb54a9eab425ec0b995af02ddea41db4f242c95580a046cc61bc4b700b. 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/USV291402781.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0003c19908ed467eae2ca28643ffa5263d4f17958df445417b83beaee35b9193. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/GBCKG0601273.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4d610875a4b8b90a185201af21ffed45d5eb5591a32d44402ec44852df9c5295. 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/GBCKG0501584.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xda7335ba37ada595f9312120de49a7d300c1da5d385f7d4b2d038416c78d4492. Chain 2 (Bitcoin): anchored in block 957048 (2026-07-07T14:18:56Z), 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/GBCKG0600928.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x495260933e792fcf0e6891faf67971ae67ae4c74b596874c37d4e62659b6182b. 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/ESA081200236.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x418ec3a90227be90d0aa2c887fd0dbcd669f20042c173668469396edeb5a0808. 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/GBCKG0701478.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc264a9715ea6a1469fb0cf8ffa7e25a60369730d40f3518ae87408375a52b5cb. 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/QMEU31619411.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x42dcf42eaf877c3f1f3a05bb39a8c6c57627d1440e02fe071d2f887230c94c1e. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/GBCKG1300282.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x40e91211d3e9aa7a548d5d682da1d48d2a988e52aa146fcb605012bbf671516e. 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/GBCKG0501580.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc67b94d64dcec0e944c143b973b171ef72b62e72eb518db0dbb3cdcb6315ef21. 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/GBCKG0501634.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd73899d1d3d0d6e37c8bcc26aef4cc9bda0f256546d16c36bf578973c727fa6a. 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/GBCKG0701484.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4a97cb1a1ac4f893aacbe44d39972de445f10fb896f89ed9ccfbc3e1b16fcae7. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/GBCKG1200179.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4d610875a4b8b90a185201af21ffed45d5eb5591a32d44402ec44852df9c5295. 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/GBCKG0501584.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x616d6e9409095772b3875f14b661888499ef4686bc53071dd81cddea0a56e455. 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/GBCKG1200186.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc82ef88f1f28e801d4ad8f5750c8b76565cb4e1c3956219b051307daed03fdf6. 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/QMEU31619407.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4ab75766f5ecfb93c8369c4a450220f5b2e3a76e5b2b2ec63631dbe35e87a739. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/USDY42069114.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe8409906b398017a56c088005c500b00016a66768c5e151ab2e9170ced36341f. 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/GBCKG1300292.
Hossam Ramzy Presents: Master of the Arabian Flute