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 0xa600787ae3b629233757f3f208f2dad077f0cd25cc510b2186823caa15d5a3db. 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/7b82ca5c-4f12-4a36-ba3c-7990cce33fee.json and https://artists.proofprofile.net/proofs/artist/7b82ca5c-4f12-4a36-ba3c-7990cce33fee.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 0xb3616652e10aa687707aa0fb9fd357e83ca743d34c4e009a052a085189c019fc. Chain 2 (Bitcoin): anchored in block 958316 (2026-07-17T02:05:17Z), 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/USUG11801636.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdb3acfb568cc0e0fece1a81720298149a7cef04271c7f412069a42a006b987d6. Chain 2 (Bitcoin): anchored in block 956500 (2026-07-03T13:55:21Z), 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/USUG11801644.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbe0900ad7d82678e88f588d61c83a1096f125a2b596ba2791390f12e444182bf. Chain 2 (Bitcoin): anchored in block 958517 (2026-07-18T07:54:29Z), 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/USUMV1900645.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa99eb0f4cce44e40333220032fbf2cf52af8bed313ad14e7d826bf32224decc5. Chain 2 (Bitcoin): anchored in block 958357 (2026-07-17T03:33:42Z), 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/USUG11901271.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x70aff6708472f7962b30f987dd38098146db05501d94d5694d4a2f726c01fe38. Chain 2 (Bitcoin): anchored in block 958489 (2026-07-18T04:13:26Z), 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/QM4TW2082845.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9f1a8dee55c923fbb38fdcf4af5dde705188e69922d16ac26aacca0921d52172. Chain 2 (Bitcoin): anchored in block 958942 (2026-07-21T02:22:23Z), 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/QM4TW2082857.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x24349e4c0ff3ed0ffb6ec942c5b18427367ae54be617ea27136d54a40a7fdd90. Chain 2 (Bitcoin): anchored in block 958169 (2026-07-15T16:16:18Z), 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/QM4TW2082858.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xab0ff8455ea64d89003fa07e0d0c7066d0f998524bc6fb915c0e9ed10556eb93. Chain 2 (Bitcoin): anchored in block 958600 (2026-07-18T19:24:05Z), 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/QM4TW2082864.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3ca275e842e1ae100936676d61b3b2648b702d90cfec31741097bce034837686. 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/QM4TW2082866.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1fe675ea8fb3937de86a0504907fbd2d65d6587aec90c0266ddd5924454acecc. Chain 2 (Bitcoin): anchored in block 956560 (2026-07-03T23:28:02Z), 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/QM4TW2082867.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3fdf6ffbfb76c325397786d95a565724d739bd9f6b505a42fe005db0e5628021. Chain 2 (Bitcoin): anchored in block 956639 (2026-07-04T11:19:20Z), 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/QM4TW2082869.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6fa43af74c6b5ca8278ba39c2e86a1661ee3be682c3a13857a1aa0601b8751a0. Chain 2 (Bitcoin): anchored in block 958552 (2026-07-18T13:15:29Z), 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/QM4TW2082870.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x36b4f70d3159e860284a97f97e5e93fcd7a36033879dcf1abb037ab3bf1e0a08. 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/USANG2269662.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x54a9944165b078302bd65cbcdf563e2955b623e25214f0bf8b0df0ce7b4aa11e. 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/USUM71907432.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1bc8a849cdfd74d5ed73cb29437e374847e64b7ca9d906de71f4ef1939d67689. 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/USUM71906858.
When Am I Gonna Lose You - Medasin Remix
When Am I Gonna Lose You (Medasin Remix)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb91417aeadad7f99ac62355d17ec7b5925b39e4c57e16e6c210b7599ed2ddddb. 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/USC4R1902744.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5bfe9de2b1eaac5b088b3baa5ad6bb8dc224019b9e785269cf9a3357cd9e8733. 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/USUM71615296.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xef48322e6dd8b82034de10a8b70cddc92b5fbf477f53834a7b1a8356ca941ce1. 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/USAT21701035.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x524b36b5f1e33000673bed30363e2668e2c8826df609f09cf800fdaac1930cc6. 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/USAT21701136.