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 0x6cfa7d40bd3cd06034d43d8495e9182ddef52bf1d06057350dab950cc9afc90c. Chain 2 (Bitcoin): anchored in block 954784 (2026-06-22T02:53:59Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/f9c3b3ff-8ed9-422f-8e7f-c5f82feff677.json and https://artists.proofprofile.net/proofs/artist/f9c3b3ff-8ed9-422f-8e7f-c5f82feff677.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 0xaa9a83779e010870b51ee2d2a3800833c888587b7d87d9fe5a748ec571998cdd. 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/TR8100902817.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x33aa0941fce7ab2c4f352586ce9caa1f3cd3211a0d7e3ff66e5403208e4c1ffa. 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/TR8100902828.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x45852de08a239aedaeb618d06b9288db515950b2ce7d2fe244ec5613395c5461. 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/TRBBV1700016.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x688bcf3e4ccfb308126acefcb132ab6565da3e7fa2d0b4a25907821bac814c40. 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/TRBBV1700013.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe8f108bbe5ddbd420fd23eabcfac31c2932d11c554920a3ba61636e95456fd14. 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/TRBBV1700007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa3aa1a9d6e1cb9c01fd225005050f06958efd96c54b22811d88b3d5b0779ccb3. 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/TRBBV1700015.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xebf1fdc1e9486790c416d1abc4e5df64d1518084fd8f94ed190694873c173aa2. 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/QZMZ92422919.
The Things We Never See - Live From Studio
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x73796357c2b1aa37fa96c942e0579b0f083a61b42ebb86894271180077620e73. 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/TRBBV1800038.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9cdc2c6ff26eb4b4945d8c44621a01816a4b45aeed75d7cdb6a4cda0e57fee9e. 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/TRBBV1800039.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x81c8d4e48d4ea0592ca2ea656360947e4074978673fdfe0d58d942954ad8d55c. 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/TRBBV1700017.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x162c71fb48e339ea008b515cfcaf70a264ec47f850cd1ea0bfb44596c87bf000. 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/US7VG2463463.