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 0x2885f6d32bb5e730b096257a0559e89c1609d29729f16b4232649893441d2010. Chain 2 (Bitcoin): anchored in block 953842 (2026-06-15T22:22:30Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/e147c8ab-7481-4002-a398-f5e9951a5e1f.json and https://artists.proofprofile.net/proofs/artist/e147c8ab-7481-4002-a398-f5e9951a5e1f.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 0xa056c50c97adb2ba7ab6d328b2128cbe370301bcbd172627f4ad7a152cd9f90f. 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/ESA092407438.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3c640f9643dafe60d86292ffc77e76b47dafdd084644a90eaab1b5491cef4513. 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/ES5702400046.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb83e6796d875cc6849c30e77c26eeef5350a0132e2e09e619bb87fcf4527bbd6. 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/ES5702300217.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xced76139a2efde894322076b889b601aa996afe8719afca1fb21c832bae48d28. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/ES5702300218.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc3ebd533422fe5543bfd3fb7d19cf3f5f8db97c3e21584f96c3a5de6d52c8a82. 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/ES5702300160.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4d26e04f26c7ede23dec02bbfcf226e5c9b8a2f13ad703b40beba8f8677168da. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/ES5702300107.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe327d7cfc1ff083e4f58007cb7d88aa6c76f906891186237232d068982853668. 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/QZGLS2331524.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9e33b8e8e6aca991ec42c88c53cbd6179191af0c111aded4a0489243de55c4cb. 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/ESA012215980.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeba956f269c803b3f2ffa1def0ce805fa8791e7e5b77f55ba477b7174d662c8c. 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/ESA011670552.
Volando en Diciembre Como una Estrella Fugaz
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfae8b39b5ecea5e88cf272d7bce60bb8fe18cd6c71ab1c7393114f1e8e99a8ae. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/QZHZ52092229.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc9e23b4c564ea6693776a448b756decbd9dcb71a874b854671110d2868945b84. 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/ESA012189755.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc1857f56360f159cb097d9227df5694d29fb4b2e6f9beff60628ddfd4351c855. 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/QZHZ32174691.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7b61631cdbae379a3a72993e03cf933986bb1ba1f5efe40e917a27913df80580. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/QZHZ32174694.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x49de398cdef81d47c7d518060e25e6a7a1ccdd70828a685bc9befec95b538891. 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/QZ5AB2335779.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1a093789de66329900b0684dc6cdde928eb4480110fc08cd0555fc3a1cc6710d. 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/QZNJV2361132.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5a0898c10c43e795c286cd67175d5ce0625e29098868a69358a8b86459ac7e03. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/QZNJZ2395291.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc2ed66cc52de874d2a62436bef09004f90fd6097c007d749dac7e5dc5c2f5c70. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/ESA011977304.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2f433e7902b9425ad60dbb86e7a4f49febb54b8496d37941f331b6e8878a53c1. 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/ESA012053466.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe327d7cfc1ff083e4f58007cb7d88aa6c76f906891186237232d068982853668. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/QZGLS2331524.