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 0xe4ae9c1a02efd23be14319eb640bef3055e30dd622c8f85b1686d812a15fa76e. 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/ff3e1d28-ec28-4077-80a1-b567a3a1f734.json and https://artists.proofprofile.net/proofs/artist/ff3e1d28-ec28-4077-80a1-b567a3a1f734.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 0x57abe473a8cabaf51a185cb5027525a110eae1aae468b9d48c150696e0dd1401. Chain 2 (Bitcoin): anchored in block 959146 (2026-07-22T18:08:57Z), 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/QMBZ92004607.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7731acbfa562367b1c6158ca88d36793179d5367926d793ffb6a9f26c4f072b7. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/QM4TW2041883.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4094fb307e9cf5487ddfd73f84ea893d6221b70f4c398534f0803adfd0ebf212. 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/QM4TW2041881.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2e31ca5dbeb2794cedbbb38040b073ac7ba8517a3a6ab30581b33844786238c4. Chain 2 (Bitcoin): anchored in block 958951 (2026-07-21T04:56:54Z), 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/QM4TX2181137.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdc64817c7cae0b69e6160ab3234f2688dc24de43c9aca65278bbfc0226dd6a45. Chain 2 (Bitcoin): anchored in block 958853 (2026-07-20T11:29:14Z), 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/QM4TX2181139.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf861c57d4e90ec71cad902d5b41eb062db478c6314be2054128c9f05bc596116. Chain 2 (Bitcoin): anchored in block 958865 (2026-07-20T13:17:54Z), 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/QMDA72135823.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x680b70e67632b4be19f7e73c14d0f6d8a4b6c429f5bee574a0cdc6a1b6432e3f. Chain 2 (Bitcoin): anchored in block 958650 (2026-07-19T03:36:41Z), 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/QMDA72135826.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf861c57d4e90ec71cad902d5b41eb062db478c6314be2054128c9f05bc596116. Chain 2 (Bitcoin): anchored in block 958543 (2026-07-18T11:58:44Z), 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/QMDA72135823.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2fa67a85944066f96fe47ba7cf72bb8472d2857d435be5b3601e16ffc4110576. Chain 2 (Bitcoin): anchored in block 958857 (2026-07-20T12:09:13Z), 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/QMDA72135824.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x680b70e67632b4be19f7e73c14d0f6d8a4b6c429f5bee574a0cdc6a1b6432e3f. Chain 2 (Bitcoin): anchored in block 958468 (2026-07-18T00:27:51Z), 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/QMDA72135826.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x75e700d011a15faef93263189a0b0d36b1c6f93d63286d21551c80f3812c7242. Chain 2 (Bitcoin): anchored in block 958901 (2026-07-20T17:56:58Z), 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/QMDA72135830.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4d2eb3c111f7af45351108c52305039ede50c1888af8d854f6305607dae8f08b. Chain 2 (Bitcoin): anchored in block 958373 (2026-07-17T06:09:33Z), 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/RUA1D2295750.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4d2eb3c111f7af45351108c52305039ede50c1888af8d854f6305607dae8f08b. Chain 2 (Bitcoin): anchored in block 958867 (2026-07-20T13:44:39Z), 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/RUA1D2295750.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd4129a09cd3e6f84e212bf0cb365ae98424d3a3372cfc47e88d81e650c04efd4. Chain 2 (Bitcoin): anchored in block 958931 (2026-07-20T21:15:01Z), 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/DGA0L2390730.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf431278b93cceb3cd1fcc1ec62497c50ce44f775e1ae7e0d15ea6130a15ee2fc. Chain 2 (Bitcoin): anchored in block 956889 (2026-07-06T06:56:49Z), 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/QZL5N2441114.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5306b2723b2aca1de8ffc6fbf524dc2b6d370ec38920397053d672b8eaaa3092. 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/QZL5N2441111.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf431278b93cceb3cd1fcc1ec62497c50ce44f775e1ae7e0d15ea6130a15ee2fc. 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/QZL5N2441114.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xde3338846e21065de972f40217279006b989224147eae495a378632bee4a30de. Chain 2 (Bitcoin): anchored in block 956889 (2026-07-06T06:56:49Z), 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/QZL5N2441115.
Глаза. Рты. И что-то человеческое (часть 2)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x84f72113d2f2d78d3ed5f8207b13ef7ebd3c5f9ecf392d2c4e4a2d1f9f5345d3. 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/QZNJX2148726.