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 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 0x8c90b691708205b2a8de1a1696fe643a5cb5c078b7bf2377a243b7fa32c8127b. Chain 2 (Bitcoin): anchored in block 953691 (2026-06-14T20:39:17Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/6b726d57-ce7d-435c-9c01-6d1f8e4b65b6.json and https://artists.proofprofile.net/proofs/artist/6b726d57-ce7d-435c-9c01-6d1f8e4b65b6.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Dalok, sztárok, történetek! (Pálinkás Gergely és Toldi Tamás szerzői albuma)
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 0x975bbe790a8fd513b0f75687c455cd2bfcd3333feb80f7ce0facdb29dfdb576c. 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/HUA320800442.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8487d7c18f53d29d24cdc50d13b97330664526f9cd7e09877d72da2b3b15a21f. 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/HUUM70702858.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa9163bcebae3d3e349088b9346dfe0f9fbd9f153182e1e95c7caf8e0961e3bf3. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/HUUM70702863.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf1865e145154d93ef7915a7c7befa2064b48157ac41ee338b7cc4a2c94c14233. 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/HUBML2200002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeaf82db8103f91be7d532a72ffd425f6c53bcf41444abcc18d6807f43f132da7. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/HUBML2200004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xabd15e691a4dd8ee06d056b0c5513ae5758507d8fdb2624ab8a191808ce76c95. 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/HUBML2200005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf177587272ea84c8eada3fed83c66429ebf9cf5577d2a4ab6b71017ba27adbeb. 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/HUBML2200006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x154fbf235013b90ee0ce10b34e57fddf5e1770ecbbfc7510695dbcd8b685d88a. 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/HUBML2200007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xad9c8e6e05ee1a7e15cec725e7aa0b3c11008fd6371c6b524b647c8aabf8365b. 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/HUBML2200008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfde6b736fe962a321cb6d3317572802d65c20305fec2fb2b26ac12706970baad. 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/HUBML2200009.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfcc6f30f98ad99ef2916643249c7d6c5b671a99adf83713b059e7f9ca764278e. Chain 2 (Bitcoin): anchored in block 957819 (2026-07-13T07:53:33Z), 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/HUBML2200010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x966e5f4d6d689340c942f4707194faa1f3d68c44bfb13614a7ae6157fd68044f. 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/HUBML2200012.
Tíz Éves A Pa-Dö-Dő, De Mari Kettővel Fiatalabb
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x046ab1721725a42448213a863437b7ca81e5a3032864838f33d315614aff11cb. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/HUUM72100211.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7786c417cbcd1859886a787d87ad1ed895e758275ccf085d1d836a3b8ae0f15a. 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/HUUM72100216.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xedfeee44f9ae95d16b11e5ed3054698313a6eda052abc6db294fe4fd7e3c9822. Chain 2 (Bitcoin): anchored in block 956349 (2026-07-02T11:34:59Z), 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/HUUM72100218.
Úgy Várok Rád / Vigyázz A Madárra (Kislemez)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe9e5694ad1a232053d3279e697a299d6085b292980f0a09ba655f3166faf1fc2. 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/HUA632000608.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc22b5ef30fa68520c7ca7bb3acfcc445364055eb19ba27df914e207950d501d6. 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/HUA632000609.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa5f66215064eb0733ce89ba6fd24783d003f70406d7c77d5657520a947be3c1f. 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/HUA632000612.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x31a07733e746d4dea68c733bfeba250877a95272c477d91528cae5c259c9dc49. 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/HUA632000619.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7e8aa27e8df3639e786745af82c3e1fe6b46e08910b68f465bf17f1df3624b5c. 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/HUA632000640.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc65cec52315f893893ea22d5a0b84634d9c2672741b129703f7844fb8e739aa5. Chain 2 (Bitcoin): anchored in block 959152 (2026-07-22T19:01:06Z), 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/HUA632000622.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb3cf19e7e5ee57ca3222fe643b15aa683078d19784bcacd9984e2024cee7f628. Chain 2 (Bitcoin): anchored in block 957820 (2026-07-13T07:54:01Z), 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/HUC571410403.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9b7aa84604eb4e557af252a4064de56fce43c783a19e143bbbd9816fef006733. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/HUA631800412.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5a08888df8564bc8c9940c3d24e1490c39b2cb51cce7d504ead3566630f63788. 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/FR2X42545269.