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 0xc476f732d291bedc65a99764220e33735cce1f396795b82795be87f389462c31. 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/4c6ca2ad-2cd4-4321-8c1b-2084dd4dddc9.json and https://artists.proofprofile.net/proofs/artist/4c6ca2ad-2cd4-4321-8c1b-2084dd4dddc9.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 → 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 0xb9a6a269dda6011147a52363f02b389b0b896d5c4a0ef9f8f28abea031c335fc. Chain 2 (Bitcoin): anchored in block 958520 (2026-07-18T08:19:09Z), 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/FI5CK1704177.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x218ef42fa4c77e852348cb64f33ae133ba8266e0b0c767aedf8e7fd1925b744f. Chain 2 (Bitcoin): anchored in block 958568 (2026-07-18T15:23:47Z), 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/FI5CK1704173.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbbef139e141247b61655bec20008aef0351c264615448da864f2f059f26c6fc5. 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/QZ8LD1762610.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb816749f5c8050cc25688a026bac3d901c6eeb3ad916bf9bf5890b2634782c04. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-19T23:57:52Z), 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/GBSMU2823758.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x32f074f33c00971eff442cf9a00d27ffb3e62d08be5b80e00eccd9a814115631. Chain 2 (Bitcoin): anchored in block 958196 (2026-07-15T23:00:33Z), 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/FI5CK1704178.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x745f49fd1fd145c2753f4b648efe217c8e70e14ced4c4ab45601a434aa4ad9ea. 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/QM42K1903066.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdad9bc9cbf0d1757ef52c3895e52d8ee6a01afe562a35156d2f3097d6299086d. 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/GBKPL2210143.
That's Where You've Got My Heart Stuck In (Interlude)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x90b42fb757436ea149b25e6ca5c1a3823a234e69f07e92fcd072da7e85e927d3. Chain 2 (Bitcoin): anchored in block 958708 (2026-07-19T09:08:25Z), 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/GBKPL2210144.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1ce464897d2a2f741df13dbacc1a991a88a0692d438e423ca7751bab50d4cd6f. Chain 2 (Bitcoin): anchored in block 958137 (2026-07-15T09:47:57Z), 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/GBKPL2155547.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd227f849dfa789dc60b3fe25571756d9eb7dd1c7e2da9c07c90a0d535524049b. Chain 2 (Bitcoin): anchored in block 958633 (2026-07-19T00:54:50Z), 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/GBKPL2210145.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x996cc2d367d9600abaa3e24dc0b9d72f22ef0365ebf1c694656df67ab8a1b61b. Chain 2 (Bitcoin): anchored in block 958444 (2026-07-17T19:12:23Z), 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/GBKPL2210146.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x85784c8080b2df48e8d8c301a2f2a433ae1df1742449fd2dc5e178abc6d9735e. Chain 2 (Bitcoin): anchored in block 957805 (2026-07-13T04:34:37Z), 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/GBKPL2092708.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdad9bc9cbf0d1757ef52c3895e52d8ee6a01afe562a35156d2f3097d6299086d. Chain 2 (Bitcoin): anchored in block 956776 (2026-07-05T10:59:37Z), 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/GBKPL2210143.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x68ee19bf12a00bb13954408c79d2baad286955b214cbe0743d29ef72589e2e18. Chain 2 (Bitcoin): anchored in block 958531 (2026-07-18T09:39:18Z), 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/QMFMG2321691.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa9f9d83b4a3a6005d175e17c5551110432fb7a51f846348f032f9d604002f827. Chain 2 (Bitcoin): anchored in block 956551 (2026-07-03T21:18:05Z), 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/QM6P42453625.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x09617fa741da7dc6b3dc6926c85fd7a93b8662f166a9a8e93fd4d2a10d3d14ad. Chain 2 (Bitcoin): anchored in block 958251 (2026-07-16T06:29:25Z), 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/QM6P42453615.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x929e07ca10a93d704fa6ca8d9d376da731db9a4c89288177c639e45e2254a98b. Chain 2 (Bitcoin): anchored in block 958251 (2026-07-16T06:29:25Z), 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/QM4TW2565754.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x77c2bcadcce389ab31204c725077a7a28c7abc28c35324b1ace58d44d3aae612. Chain 2 (Bitcoin): anchored in block 958444 (2026-07-17T19:12:23Z), 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/QM4TW2565755.
Blame It On the DJ - CyanBlue's Nu Jack Mix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfef62b3c63756aeead25034a7ed9e5a4624a7339062f8ed5349edcb55e6d01f2. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), 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/QZN882593347.
Blame It On the DJ - Midnight Drift Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5aa93662244f368b9ed8c71003cf76dd34ff0f50bc975fb4e887b842117cc64e. Chain 2 (Bitcoin): anchored in block 958430 (2026-07-17T15:33:28Z), 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/QZN882593345.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x68386aa66ea345969af5efda18acf4af079e531f46f279406c811d4539867eb3. 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/US3DF1814192.