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 0x1e076d1e5f89fba3b049fa4716c34c269167e1207a9d5365e765c2d2e48a74ae. Chain 2 (Bitcoin): anchored in block 953717 (2026-06-15T01:05:33Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/87d64771-4fff-406a-9667-91d6bea9b347.json and https://artists.proofprofile.net/proofs/artist/87d64771-4fff-406a-9667-91d6bea9b347.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 0xe253e2f960edf42d700178411238d1d53b169457a60326f497424b4963371e48. Chain 2 (Bitcoin): anchored in block 956639 (2026-07-04T11:19:20Z), 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/ARJUK2100002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbe646417ccbeb198a20210764227beb66ac1b174bbf387063b87054a9966fbe9. Chain 2 (Bitcoin): anchored in block 959010 (2026-07-21T15:37:49Z), 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/ARJUK2100003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x525825116737e52db11938bb5addf14188fc0e68a3ec18866720e434b35cffff. Chain 2 (Bitcoin): anchored in block 958448 (2026-07-17T19:49:21Z), 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/ARJUK2100007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3f02cc2d0bced94e3cc9805da35ae4efe146eef3a74e5ccb5ac67eb2efabbbc1. Chain 2 (Bitcoin): anchored in block 956656 (2026-07-04T14:03:39Z), 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/GBMA22454282.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7ae4f84a7ed82ecae38bba76e901f23c73842a5a9c2714dc6823e2459af9ca66. Chain 2 (Bitcoin): anchored in block 957599 (2026-07-11T19:42:17Z), 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/GBMA22454287.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8d35ab20e9ff31a2ac19b08aca962926ed159825c9af44f1f1b353295f34af44. Chain 2 (Bitcoin): anchored in block 958246 (2026-07-16T08:32:08Z), 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/GBMA22454288.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf92a2d372f91cf94b909c37cc10ccea3a3c7f360d9772ba7a830c90c8b4a11a7. Chain 2 (Bitcoin): anchored in block 958689 (2026-07-19T07:11:11Z), 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/GBMA22454291.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5cd43945cb0fb012b4bcd45085492f1caaeaa134a8f3c96dd478299dcd0bde1a. 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/GBMA22454292.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x090660f47f7ac8183ed607ba74a94733ac379f3921dadb53bd5cdc1cd47cc229. 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/ARWPM2300524.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1b3a7e818eeefaa3dde7368bb2230613c4a4537aae548efa61df9f288a649ad1. 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/ARWPM2300525.
La Reina de la Bailanta / Quieren Matar al Ladrón
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9a1a873d2d6c64c71125a4cef6da295a924c9457df72adb09d608c3f974d52fa. Chain 2 (Bitcoin): anchored in block 958857 (2026-07-20T12:05:41Z), 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/ARWPM2300526.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x49c18f24358d83fcfdbb76533a685903f9bc396c31379378c257b8697cedde89. Chain 2 (Bitcoin): anchored in block 958867 (2026-07-20T13:25:54Z), 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/ARWPM2300527.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0888fe27e200da347b24b066e6e34a3b103d349f4bba31f71daef7669279e3c1. Chain 2 (Bitcoin): anchored in block 958876 (2026-07-20T15:00:59Z), 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/ARWPM2300528.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x422bf9d6f8b60abf70e347fad1d614bfc78ea3de0a737a8a60d2b771775a53cc. Chain 2 (Bitcoin): anchored in block 958839 (2026-07-20T07:01:59Z), 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/ARWPM2300529.