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 0x39265ca6e7bfb5e2cc422ead5b3530774c505604807c7a0dc78df34c2b8f7adb. 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/d028cd49-3dbe-4062-b236-ca62500957b8.json and https://artists.proofprofile.net/proofs/artist/d028cd49-3dbe-4062-b236-ca62500957b8.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 0x572ceadadc784f6cff04287e4016c1da501d8e5b635e52ea1b0245b6bae0bc95. Chain 2 (Bitcoin): anchored in block 957052 (2026-07-07T14:50:41Z), 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/HUA612202911.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x17f9522229a1831aa1f49e48643efc3ac6a6f2037aba4d6c6405d6bd8c580ca6. Chain 2 (Bitcoin): anchored in block 956351 (2026-07-02T11:38:34Z), 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/HUA612301517.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x516ebb85cdcb788d8591215b57979ee1d22d8686f5dd1be82c54a02c60dff30c. 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/HUA612300849.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x23d40f62e89f93223a754e89ec7a52fdb55ecf77244de852a130c04c71a330f8. Chain 2 (Bitcoin): anchored in block 956351 (2026-07-02T11:38:34Z), 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/HUA612201620.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc430d1f80667c19dd380e7017892faffe2edfd1622a697b4cc7ead3ce0d60383. 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/HUA612301521.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6aeb8201bf6b6b8b36c1e48ac094b597ef836d6f69bcf75958c5b09dd83ab41f. 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/HUA612301526.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x29e28ab21ec5bec29113656d7bebfe25c4ec3cd2f1bc11b31b8e56b7af7b43f9. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/HUA612301527.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8cefd79450051c96ca27d413940405f8558bea24b2df9b646df29c021f7637d6. 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/HUA612301528.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x747ab1d247876d442aa17ca1efe09ea8ac5dce8cc0019de0b1612b8e0cb4ad5f. 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/HUA612301529.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbaae073215c662d62154326008eadcdb9082deb273f3a19ea7be7fda8cc9d406. 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/HUA612301530.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xac28250229b21bfbc70007854a83a7c17ac2a9f0aea706ac7fc83d82facf9b90. 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/FRIDO2010458.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x196d8da1ac1f824bbb39bc4ed66acfe9c25cfd6970a504dc7ee7b41d88154789. 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/HUA612001273.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaded55eed6d50a9398bea00df2e9c02a1b783e567d3e5448ea64a4098dcd3288. 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/HUA612001274.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf00df9e873f39441cce296125c3032f4df67e49094520074c010f0beee607410. 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/HUA612001275.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa3bcce94be95e0339b3ea4087ab453894eefcd3b999abfe2a810f6febdea247c. Chain 2 (Bitcoin): anchored in block 957052 (2026-07-07T14:50:41Z), 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/HUA612001276.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc1780f49fd36130a87f5bc53bef179e32ab216ba8c947e04ab3c7a8c07f321b5. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/HUA612001279.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd8d99b5f4a404276f18064fa5a7ec20c6de9fb38003747092b2365f3dd961b43. 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/HUA612403387.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfa568c7f0db2fea61f88ccd3a92fa03719857b8751585cb1aa8f9ea7591be295. 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/HUA612401022.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x516ebb85cdcb788d8591215b57979ee1d22d8686f5dd1be82c54a02c60dff30c. 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/HUA612300849.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0a214b21eb9df35c81194d66f3db3d952636467cb7f776ba91b6e5a085403e92. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/HUA612101789.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xac28250229b21bfbc70007854a83a7c17ac2a9f0aea706ac7fc83d82facf9b90. 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/FRIDO2010458.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd4139fcf45d48149381997992d01f4907628c511bef49b66e6c107ce9ace61ae. 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/GBWUL2061246.