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 0x77645495780dcd66ff443839436f052776d86e87c2da58176ef98c98213e5921. Chain 2 (Bitcoin): anchored in block 953407 (2026-06-12T19:24:56Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/d5aea603-fbf3-481f-a091-eee3667eb523.json and https://artists.proofprofile.net/proofs/artist/d5aea603-fbf3-481f-a091-eee3667eb523.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 0x43bafa76804e5f80eb2ba7899dc069d1c246f5f315c7ba9db097c95a60dab6a2. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/DEKF22400947.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd931ff8b4819e8620a9c136e771131316d16fc11af9490e1ae4c6e9f2908a40b. 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/DEKF22400948.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5cc4a12b3e2d971aa473ec872b72bfe51f1a68f54bff1e18fb4ce7cad0a24c35. 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/DEKF22400949.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x98da0855a08d0424296b7d9c93149878721d0068ab8fd366baea495a9ad737da. 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/DEKF22400950.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x48112acf41be51e81acb549c1840c45871bf5663bfebe8376f7ce4f6d34121de. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/DEKF22400951.
By The End Of The Night - southstar Remix
By The End Of The Night (southstar Remix)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1ffd6ae51f8aed0a730dfbac80f006a81de06f2053012f32d4efce09cb71503e. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/GBUM72304009.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb9eb00f3f60b541a49935d19fe4c2cdf46dd25d9a08da484df4b8384ad6ddb44. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/AU2DY2300031.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfc0b083bb9a37b18c7b5e087c0cb611acf0457b556a0ab9d79ec162e05e12ee7. 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/DEZC62269331.
i like the way you kiss me - southstar remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0b0eadb4062fa6efc18ef80b04e544a0cb936f43af54c7d6b3612608bf3b2af6. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/QZJ842400582.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbf7f57866f14cf24a7a8352fde3f95582979ede801484b1dd61e72df70dcf090. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/DEZC62354008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd358da98756d5000a73f19a624f72e38882ec0a91a5845240db7cd4c65c1b2a8. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/FRX282433099.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x44f6da441c6cb13149b85f40da976de424697cfec0b30b7e33f9ea7face2ee2f. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/FRX282433100.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x038a3ad6534db478bc1af1a5defe0a62627fda269482e9564b90f08079e25677. 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/FRX282433101.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf257cbb8ecd8103b02b6ef335766f64e14dc2a1d53d8fda371cc4aba74b32124. 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/GBUM72406994.