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 0x0cc7788d37d37d7bbd6af2f1347ee5b907ac91c4bf54b553b88b2139525d48ac. 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/c14c96c3-eaa7-4cf5-9657-f3a89ccf45a5.json and https://artists.proofprofile.net/proofs/artist/c14c96c3-eaa7-4cf5-9657-f3a89ccf45a5.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 0xaeff3236e2fc47e25595dd0e7fa796034fc296372ad4bef48f99a65e890e6e52. 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/TCADU1878650.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x78d307b9dcca7a809e4e3da3d7f522ce2baa3dbb441ecc19a1dccf5dd77e7d91. Chain 2 (Bitcoin): anchored in block 958063 (2026-07-14T21:07:34Z), 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/TCADU1878652.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb9b08142386e1bcbb7a3f4f324efed8bde8fff28ef921d58d4d8b0d56d16fcf2. Chain 2 (Bitcoin): anchored in block 958812 (2026-07-20T05:50:48Z), 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/TCADU1878655.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1a775b8f20ae2765bcd058313611a0fe3bce1e273fd6224f48cc5739f27357a3. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), 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/TCADU1878657.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x55a68664164463853265304dc944e761421102d45d9466d4ba4d7d8f5b33d48f. Chain 2 (Bitcoin): anchored in block 958489 (2026-07-18T04:13:26Z), 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/TCADU1878664.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1b19787f79d4a83bdfeaed58cbd4396b935ab8e9e026a9a56c825cc58913fa07. Chain 2 (Bitcoin): anchored in block 957735 (2026-07-12T17:47:43Z), 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/TCADU1878666.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4358e8e52ecc8b725d584158405be1457530a5ccf63236d728f5ff9c58160f67. Chain 2 (Bitcoin): anchored in block 956728 (2026-07-05T01:43:49Z), 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/TCADU1878668.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x79104053a7faa45a8b867103f861ff10300d7f81efd759fd3db784fb0eb0f5db. Chain 2 (Bitcoin): anchored in block 957747 (2026-07-12T19:35:06Z), 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/TCADU1878671.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb0cf71a171a8b8c051f989352055ad8c16384a0661c8368747ca6734f96bf463. Chain 2 (Bitcoin): anchored in block 958397 (2026-07-17T10:29:45Z), 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/TCADU1878679.
Az Élet, Vol. 1 (Ez az a nap! Stadion 2022, Live)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x21e82035b8407f447c66af5b17803c6a907660b94a9bac03ade84726ca57459a. 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/HUA612302255.
Ez az a nap! Stadion Dal - Hivatalos Ez az a nap! himnusz Puskás Aréna 2022
Ez az a nap! Stadion Dal (Hivatalos Ez az a nap! himnusz Puskás Aréna 2022)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x09afe925de20cd2dd991f5fcc29324965d8e51789a7cc03dfa122513de41a1a5. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/HUA612201550.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa1c1aeb6823dade7681d9da6b3a6e9eccb0c58f583f3e48ba7dd319c43cf7e45. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/HUA612101876.