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 0x4b776914facd11fac9062ef57a4d929f5931f43df88a1dbe6efc7adbd11dba6a. Chain 2 (Bitcoin): anchored in block 953423 (2026-06-12T21:20:00Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/fa6caf43-f264-4f83-99bd-603f73897a3b.json and https://artists.proofprofile.net/proofs/artist/fa6caf43-f264-4f83-99bd-603f73897a3b.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
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xecf00148ad10f81127faa21a30440df0040197b3741e90b982a0595733b8164c. Chain 2 (Bitcoin): anchored in block 958455 (2026-07-17T21:28:36Z), 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/GBSMU3723952.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf1761752a1b72eb269a14e9192370d94241a5bbe1b117870340e89309ffd05f3. Chain 2 (Bitcoin): anchored in block 956738 (2026-07-05T04:47:21Z), 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/FRX202275310.
Yar-Yar / Siqara / Şəklimi Çək (Aygün Mashup)
Yar-Yar / Siqara / Şəklimi Çək - Aygün Mashup
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb93add1ce9b784893a854b8c297a48a4a8a15f585f6452c61f0ef04b08213a21. Chain 2 (Bitcoin): anchored in block 956639 (2026-07-04T11:19:20Z), 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/FR96X2388344.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb93add1ce9b784893a854b8c297a48a4a8a15f585f6452c61f0ef04b08213a21. 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/FR96X2388344.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x028be9edab9d76970b21c2e61c40672fea67e35b4423023ee5ac81c69e7c81e6. Chain 2 (Bitcoin): anchored in block 956639 (2026-07-04T11:19:20Z), 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/FRX282326178.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1385baa26c022557d8e14e04db5540eade39d820126d23227edd9d7ef0bdfe13. Chain 2 (Bitcoin): anchored in block 958447 (2026-07-17T19:47:19Z), 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/QM7282338543.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3c42212deaf643ee1f6b6a601d55335d7befcc70785954e9503505c90bd5b9c5. Chain 2 (Bitcoin): anchored in block 958690 (2026-07-19T07:14:39Z), 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/QMFMF2327424.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3c42212deaf643ee1f6b6a601d55335d7befcc70785954e9503505c90bd5b9c5. Chain 2 (Bitcoin): anchored in block 957703 (2026-07-12T12:26:40Z), 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/QMFMF2327424.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xab620591731ed8707e1c6bba03cc0a191a6a6989c7fd81f7336f4be297e4ea54. 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/QM6P42499819.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2c1092a68f8c7d78937b891f81235cde260e18b3566643d4d430a550f6548c0e. Chain 2 (Bitcoin): anchored in block 956402 (2026-07-17T02:15:48Z), 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/QMDA62481188.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa6b0509e6429eaa22198076bdc2b4aae240d35fbc677a9e0083ed0bf2f8acbde. Chain 2 (Bitcoin): anchored in block 956500 (2026-07-03T13:55:21Z), 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/DGA0S2499262.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4dda3ec83d9bee82da6142bb07d3c7126f6e98d1bd7f08b27f1e6a862e00fedb. Chain 2 (Bitcoin): anchored in block 958194 (2026-07-15T21:48:46Z), 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/QM7282552036.