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 0x85e55683a056159e31d48e513cab26d161b6a9678f5ea4764183e440e97562ba. Chain 2 (Bitcoin): anchored in block 954046 (2026-06-17T04:53:03Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/40fabf63-6dd0-4b63-b3ae-41992adea45f.json and https://artists.proofprofile.net/proofs/artist/40fabf63-6dd0-4b63-b3ae-41992adea45f.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Total Eclipse of the Heart (Re-Recorded) [Remastered]
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 0x18142a8650b4476e60cfbdfcae41beb153008bac09afa1a423bb545b11a147dd. 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/USA371575724.
Where Do You Go (Re-Recorded) [Remastered]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xee535c33a0e43b752de9a83e7999bce8f2deb631b3b252f4258313f1432b9407. 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/USA371575726.
Maniac (Flashdance Version) [Re-Recorded] [Remastered]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x18e3a9655ecce3cea182e5652e6fa4ea3698d65c46d115761d04a7cf41bbea4c. 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/USA371575731.
Mambo No. 5 (A Little Bit Of...) [Re-Recorded] [Remastered]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xad402cc41cfeac0acc4f074f63b7056bdb243a3605c0fd6d36396c58758e36fb. 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/USA371575734.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x05feb12d1240422a6bab00cd316420964f83192bc9bb13f2fa0df0f8b95ce8d9. Chain 2 (Bitcoin): anchored in block 957073 (2026-07-07T18:39:05Z), 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/USA371575735.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3f3a8d6c41bc9eba73a25aab93647655ac8baba755ac02cdab2d53bdc5cb2d8f. 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/USA371575736.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc2d50d9c105e4c11d44ff3237c128127335ea03ed59852f6a5f55e21b4c500bc. 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/USA371575737.
We Built This City (Re-Recorded) [Remastered]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf65c15be946cd932b973edbff442a648d6e4f680e08384c899eec4cfb09880eb. 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/USA371575740.
Jenny / 867-5309 (Re-Recorded) [Remastered]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1b900833d5b480e69044acd2014649527cddf4dd63a85fcf518012804af38d83. 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/USA371575742.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd9403ae8a4cad2ef0904849c1f17bc9677e1d24da0926b6d70fee285f7d0de2f. Chain 2 (Bitcoin): anchored in block 957011 (2026-07-07T08:25:35Z), 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/USA371575746.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc8b7619237fd4498425e149b79554980049133bc64b213f95d320d0d3e748b26. 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/USA371575751.
More, More, More (Re-Recorded) [Remastered]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb6626b2e123ed9ce57dad451457c9af8fa3b5d78bd495bbfc1d0118210799a5c. Chain 2 (Bitcoin): anchored in block 958544 (2026-07-18T12:14:37Z), 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/USA371575803.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0a69daf08d95d719a6b22b7ef1f29b3c443c65838f076bc3add37fb5b3bfedfa. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/USA371575755.
Kung Fu Fighting (Re-Recorded) [Remastered]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7c35a1517954ceb36e4bc1c435d920d7c8386ccf1e363405d16ba8c459ff2ff4. 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/USA371575770.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x951756f8be1f4767be43d4bde664b3faeef54d07a888fe3558bee3d3cbb3d1ef. Chain 2 (Bitcoin): anchored in block 957852 (2026-07-13T11:25:45Z), 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/USA371575822.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8c46ceeccc2bf115e0319cfd226fb1ac59a33277d1cd4a15e8d1a693282108dd. Chain 2 (Bitcoin): anchored in block 960258 (2026-07-30T12:45:34Z), 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/USA371575753.
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 Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9ff816259b273b71714af7bd9971dd5d0af4691f033a9da3c2715e9f488ff2fb. Chain 2 (Bitcoin): anchored in block 960236 (2026-07-30T09:37:10Z), 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/USA371575763.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaf19260c60ff023df2bb271039fa729c9dbe7dda8fa148e414ceb8ca3db2fcdd. Chain 2 (Bitcoin): anchored in block 960397 (2026-07-31T12:24:41Z), 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/USA371575764.