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 0x731cec11ed144e80d44edfd9f85a3746786c155ae900f3d1491d4b0e7bb6f305. Chain 2 (Bitcoin): anchored in block 954125 (2026-06-17T18:27:28Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/7ba4e638-3703-42fb-8245-99edaae18219.json and https://artists.proofprofile.net/proofs/artist/7ba4e638-3703-42fb-8245-99edaae18219.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 0xcef28b66cb8b1dc6b9065091ce045d376fd76fedcbd52e232378ab9461053967. 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/HUC471710007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x580b0a0ace74ff0d78535e70c08c53656eafa15aa445f2d6b92a8bef11af46c2. Chain 2 (Bitcoin): anchored in block 960478 (2026-07-31T23:30:38Z), 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/HUC471710001.
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 0x6e49da7f63af51951dfbbbbb136ef613bd1047a0977a76d444097c475ccfe997. 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/HUC471400110.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa2263d996f9281e929fa3a0dc90f05d760019e324570c06a57a2c5668f237bcf. 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/HUC471400111.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x79b3607bc9e4920a0e2e742d3a07867416f71c8125c82549d9444ea19f6d6595. Chain 2 (Bitcoin): anchored in block 960344 (2026-07-31T04:14:58Z), 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/HUC471400104.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb346c93db74d50aeb72f3e13f2586dcffaf9e829ea27c1d1a0deb0d57eb38f98. 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/HUA181115902.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaa7905567f3759199e5aad2efe471dc5cc1c70fe271964f3fc7fb05595da2281. Chain 2 (Bitcoin): anchored in block 957122 (2026-07-08T03:39:04Z), 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/HUA181115906.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x44974570c3370174fcd36034539805cf2a3ee8fa977b6c398c97cf6072d6210b. 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/HUA181115908.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc199a9978cadef93bd06c24caced4678ebbdb39e07a3e73921308ad45f0b677c. Chain 2 (Bitcoin): anchored in block 959159 (2026-07-22T20:35:50Z), 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/HUA181115901.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6d189861f08b947ce085a7dc0fcff2c2d75736e8ab75363de83e61dbf5553076. Chain 2 (Bitcoin): anchored in block 960309 (2026-07-30T20:35:49Z), 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/HUA181115903.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe8dc0100ebe3cafb1bf08f3c393e9ce7081701013c78b3d6ab7bb96ecc1be5f7. Chain 2 (Bitcoin): anchored in block 960144 (2026-07-29T21:09:47Z), 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/HUA181115905.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc5e213d6a3fdccd91087564bc3581e99baf23c82f3a767ff0a0a760a9e0fb325. Chain 2 (Bitcoin): anchored in block 960478 (2026-07-31T23:30:38Z), 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/HUA181115911.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x751fd41e3c2b2da7c311e5f8e53d209aa035a7740d34fb68547d89165e2f642b. 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/HUA180911705.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfb6eb02525d84ad336577e45732098a7270482ae3df555761b3d1a57846a3804. Chain 2 (Bitcoin): anchored in block 959144 (2026-07-22T15:38:35Z), 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/HUA180911704.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x54b51260af09435d0ce49cd0a078a7486fba9d60c4f996aa7c7123cdd7b30be8. Chain 2 (Bitcoin): anchored in block 960300 (2026-07-30T19:42:40Z), 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/HUA180911702.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x73386b6af76f41c6f945634fe8115409ede4e2da6c05f4dd36d46ff72324bb6a. Chain 2 (Bitcoin): anchored in block 960500 (2026-08-01T03:13:03Z), 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/HUA180911703.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x64169bb40425693e9b0f6ab24dda002f4b7ac07d6680f04c8086b8ea611f80f7. Chain 2 (Bitcoin): anchored in block 960354 (2026-07-31T05:48:18Z), 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/HUA180911706.
Szeretném Megpróbálni (Feat. Dés László)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb1f862948501b6383ebb2ab269ff6b9aba7e8aa15749b50cea74886ff3135da0. Chain 2 (Bitcoin): anchored in block 960455 (2026-07-31T19:53:13Z), 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/HUA180911707.