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 0x2b8416ab3d6507f6d2da9c2e562c9ff17165f10b8f01bc7cb0c17646db9945cf. Chain 2 (Bitcoin): anchored in block 953408 (2026-06-12T19:28:13Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/ea68d229-871c-4a94-96c5-33f85f864913.json and https://artists.proofprofile.net/proofs/artist/ea68d229-871c-4a94-96c5-33f85f864913.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 0x06b6886f39f79ac33374bda37b4fb814e7978d6d28e6047414da78eadde8a7cf. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/QZFZ22027908.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x645211dabd25de6d056f9997cb854d0717906336c04197e5cdf8e2d6571e098d. Chain 2 (Bitcoin): anchored in block 956420 (2026-07-03T00:42:11Z), 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/QZFZ22027912.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0e7dd551f97d2f89bf447a9fae828b13ed8047dffa6a36acce00911b2a365d1e. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/QZFZ22027917.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2d433837a7bc0ae355bd66bab05487416ba5fd186c237be037b5fc0bf4253ad1. Chain 2 (Bitcoin): anchored in block 958300 (2026-07-16T16:14:30Z), 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/QZFZ22027918.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9f8dd290eb4c8d55869633c30856e532c7da8f6b78851d6f58b2523c3e796961. Chain 2 (Bitcoin): anchored in block 956474 (2026-07-03T08:56:35Z), 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/QZFYY2093206.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3c3125f20f8f362bb02bc0ee016832223995eac36f9e59be01ad17f29002b46c. Chain 2 (Bitcoin): anchored in block 958377 (2026-07-17T06:48:00Z), 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/QZHN72045935.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x239bb2a6b6d640c18d752d23b48cd43c5c8f7b81e79ef78bbe070b2785453b31. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/QZHN72083949.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9e1865b97a5de3cd81c9e9e76878cab59af63e9a3e4ce930bc816c3946d2e7ff. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/QZFYY2154086.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x793ae0d977e003887d4b7b7bb8f05aa0d324c3cadf626cebb4a15d4828a85f9d. Chain 2 (Bitcoin): anchored in block 958194 (2026-07-15T23:01:41Z), 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/QZFZ22119124.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6f6f0f14d69d1dcb0550741026b06d10a61323b4bd0654840dcd8595fb0df956. Chain 2 (Bitcoin): anchored in block 958166 (2026-07-15T17:55:07Z), 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/QZFZ32179096.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xab6927068e039d552543d566ed898b3df2204b0cd092bf8727ff26b5e12256c1. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/QZES72233981.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x08dab1ca0de66de85018fb2ffb242b0cce41645804658fd5cc036059c197e96c. 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/QZNWY2441188.
Nekvalitní song o tom jak ona nechce pomoct
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2350aa7a2575e030b00710df3f3692a990739f83094c59b0edaa5e27e38603ee. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/QT3EZ2454819.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6fbca8e5e5ec646cc860218941a3bc378ac7d6bb8f54c2bad4c0005a8cf71baf. 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/QZK6G2052426.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd77c58909c2543f09a33053ccd69c63d133a2918194ffd5bcf38e27cd313de9f. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/QZMEP2334800.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb40ae7b5ed3fb036119d52dd356cb080a552dae2dd4f645c2e74f831b269b657. 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/QZES51977816.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7ebea73e06eb3493905d2bd92cccf1b5fccb7b2da53d67bfa07de4a84d9e65e3. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/FR96X2197543.