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 0xb14c858aed04d14a0f969665e30728a720cdbd978595eed4b82eed04ed8f7429. 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/40dd900a-0281-436a-88f3-4c24839175d6.json and https://artists.proofprofile.net/proofs/artist/40dd900a-0281-436a-88f3-4c24839175d6.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 0xa6d1ed0e624d2f6b51f2cefffc8065633c27c3eaff3ea10ab18e5a6d75dce797. Chain 2 (Bitcoin): anchored in block 958074 (2026-07-14T22:45:25Z), 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/SKI521500106.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x05b83aebe56105329bdb7c6a226b3b63056279daf35759251a76bdbf26825028. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), 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/SKI521500111.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd8397dd5305c59a4cad8d6603e264ad8dd22948f1161006fbec24afc6bc6e8da. Chain 2 (Bitcoin): anchored in block 958455 (2026-07-17T21:28:36Z), 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/SKI521500205.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x236c5c5d2ba07f18db08a7d0d789617b105343365800839ba97d0eb99d90e5ed. 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/SKI521500303.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1f5e6bd78458f8bde874cbefb490b804d68b3160ef2f56b65f3595d9197a42e6. Chain 2 (Bitcoin): anchored in block 958224 (2026-07-16T02:28:43Z), 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/SKI521500406.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2552dab1e038ef0ca7b08479d3e6bb03dcd3fcf7d0454e9c1869d7b6827c79c8. Chain 2 (Bitcoin): anchored in block 958075 (2026-07-14T22:55:31Z), 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/SKI521500409.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7829dcd2208638149d9b1b85253a30bcaf07b62ba2e10d53ffd6bbb2694058e9. Chain 2 (Bitcoin): anchored in block 958216 (2026-07-16T00:00:34Z), 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/SKI521500503.
venované pamiatke budúcich zosnulých ...
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbc69ca7d6d190eee65be123ab1b11b4c7104019975c4d4945a22c97b95bb5570. 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/QZTAS2118311.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x66eb30cd0c113f430a840ae28e62430ab1e5b7baa16a8b48ca0d658b11f77ed5. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), 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/QZTAS2118312.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x67fb0254df1be4fda8ed6190ef55e0593d832ebb7b9ed23a0195e6923f206ef1. Chain 2 (Bitcoin): anchored in block 957052 (2026-07-07T14:50:41Z), 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/CZA231200382.