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 0xa9fb9871ca7407661f2d6adacc1e85ff95389d3680cee3ccc3b308eeec5af6a4. 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/1c01a2f7-103e-4a2f-ba2c-f7904b2e634e.json and https://artists.proofprofile.net/proofs/artist/1c01a2f7-103e-4a2f-ba2c-f7904b2e634e.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Ez A Dal, Mit Dúdolok Neked Szól, Hallgasd Jól
Tizenhat És Fél Esztendős Lehettem Talán
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 0x7ac44cec4ad4e117efc1c2abe2466171cd1fb495a47e50b5f27ec9fd024e01e3. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), 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/GX5MX2465894.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x26d58016755b4ea4b7b1a8b6df4ddee643e3fdaa139a9640727e32378ba0c54d. Chain 2 (Bitcoin): anchored in block 957774 (2026-07-12T23:51:20Z), 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/GX5MX2414379.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdc5b811a38e7d2781f5386bf5fa3b32c9e3be1d1b4d448549c2acd7666f00636. 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/GX5MX2469765.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6e435f58df352a7735b39a84a56c9b1efa94415d34f2c83690f61b659f720398. Chain 2 (Bitcoin): anchored in block 958430 (2026-07-17T15:33:28Z), 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/GX5MX2457660.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x640bceae793295d3684ee244cdf2c0d1fc0673e5494a2c536f9df5d018314bc1. Chain 2 (Bitcoin): anchored in block 958180 (2026-07-15T20:07:51Z), 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/GX5MX2429012.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfa4f1ae555e22d52d3a50e219f5f0de563d2604e921ced2b59641cb7069f0e56. 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/GX5MX2483630.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1ba32321896ac63b2b0c3d4d2df55e37f9396058f2a9857cf0697c6d4a7c8796. 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/GX5MX2445622.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x63eb51bd97e1b7c412d3394717c48e2e56a0af61284f0985f7d8c6d35d6e9d1f. Chain 2 (Bitcoin): anchored in block 956857 (2026-07-06T01:26:17Z), 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/GX5MX2490844.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd0f6c44497a91268a586a0d6bf16e20fb6a41ff764280f6d0298ddc94dfa9328. Chain 2 (Bitcoin): anchored in block 958176 (2026-07-15T19:55:51Z), 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/GX5MX2444308.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x056014f18f023606aecb4dea0477810e66af44023160cbf0b926c5e4065fefcf. Chain 2 (Bitcoin): anchored in block 956857 (2026-07-06T01:26:17Z), 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/GX5MX2463484.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x87969d4bd40382d3e5ea5b0fbb8919f77a9d9d53afb467618b99cdbaafde7d63. Chain 2 (Bitcoin): anchored in block 956891 (2026-07-06T07:16:32Z), 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/GX5MX2472867.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6103669c7d0d58d98b242afbaa2b3e1acef5ab38b91e264e516fabd2db5ba5d7. 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/GX5MX2415943.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xad076b3b6ccb64c7379128bb481bd6482fbc0e9fa13dbd5b4ec77b7081a7be42. Chain 2 (Bitcoin): anchored in block 958798 (2026-07-20T02:58:25Z), 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/GXBDS2459534.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa812dcfbac02730bde185d9e97f838a0f031393b92c0d25d30939f488b8df498. Chain 2 (Bitcoin): anchored in block 956862 (2026-07-06T02:10:22Z), 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/GX5MX2425116.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6176c4a29c3637c557f9e32a779f6011e26b7b8e9b22315a6320a1e9445fddb2. Chain 2 (Bitcoin): anchored in block 958371 (2026-07-17T05:45:43Z), 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/GX5MX2483909.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xad076b3b6ccb64c7379128bb481bd6482fbc0e9fa13dbd5b4ec77b7081a7be42. Chain 2 (Bitcoin): anchored in block 958228 (2026-07-16T05:02:40Z), 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/GXBDS2459534.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6ce5359557a9bd727b9e9f29c95ab743d92b53a182bb7b866dc3b21027c7dcf6. Chain 2 (Bitcoin): anchored in block 958484 (2026-07-18T03:34:53Z), 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/SE6XX2501812.