1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. Open OTSProofURL → extract Bitcoin block number → must equal OTSBitcoinBlock 3. GET OTSBitcoinBlockVerifyURL → block must exist at that height 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 0x1a6f7fe7ebe569b211eb2ee6e2a38f29da58f86a3b52482a7a3549807a1d31eb. 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/9d89eb32-0fa4-4188-8a42-bd0977765f79.json and https://artists.proofprofile.net/proofs/artist/9d89eb32-0fa4-4188-8a42-bd0977765f79.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Koneksja non profit (feat. Egon, Ziomek, Kriso)
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 → block OTSBitcoinBlock must exist at that height 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 0x4de6626305e2b3c8e14932510c17b1abb6f52f01d11eede283c3d7fb7e40a3de. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/PLF241401246.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb0577613f96b815880fdde84e4d5d700bd88add154935bf46e37eab156aa641e. 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/PLF242107587.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8202c779053cf17997c934a8716a36cf2d13b3f5d00fc94a8bb9a31b98242f4a. 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/PLE951200662.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x897e5e92f9e46b4043db161d8d8978d8196e9006c125693da104eccf005cc42f. 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/PLE951200663.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb45a14eefdeab405e05249100fbb6af1114bbec90758791086c478f5a7f043bb. 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/PLE951200664.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd6e9c3c066051283523990f836f94677ee635c4021cc8d91c66d56c64e2f5214. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/PLE951200665.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4685773fd5b624a3d4230a93bcb2d622af1fefdff5a13ceada3730caedfc880a. 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/PLE951200666.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x30cc689aa9f5ce913aec9dd209163371c1079109a1c2426283cbbad13576b0cc. 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/PLE951200667.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8aac78c6071f9e8fc7462b458cc4563622020d8ec9768dc61cf4ed95af9d1229. 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/PLE951200668.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x62ae0bfd35359b0339d580d0c7c191a032abc7148b4f9b066413ad984ad4c24a. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/PLE951200669.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8c7f811ab1e743f5dd80e06dd3204a7db72df10456a7519f2586a13c133661c0. 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/PLE951200671.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8f3705493190fb5eb41783254789aeb4acc8a40f080420d7ee517fb7945d2526. 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/PLE951200673.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1537c94f8df2b2cd3bd301fab36b416095a6c6ff3bf969d86eeb7b584b54b274. 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/PLE951200674.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb8e78367f69f9b5915caf0e8b15437c7a415ebfc58c016a20769008e8910528c. Chain 2 (Bitcoin): anchored in block 957026 (2026-07-07T11:02:43Z), 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/PLE951200676.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x855693e9196f545dc46bd77df0f95b48a32978c6dce684e1536da270745d9a6b. 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/PLE951200677.