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 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 0x1e46254f8860d189f134f24d4f17f0828a2d7631ad843f3c5124ed95d832062b. 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/94b0d414-43ce-4024-b456-4f4d652c60bb.json and https://artists.proofprofile.net/proofs/artist/94b0d414-43ce-4024-b456-4f4d652c60bb.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 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 0xdc49a008c3cc3e6a3c03886eeb9787c0f2f7107d30bef5279b03ccdf2a933a55. Chain 2 (Bitcoin): anchored in block 960334 (2026-07-31T02:19:15Z), 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/AUBEC2189419.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x978afa481a826d198316ecb336821816b114643855ebe0636925f55a6bfb8ad8. Chain 2 (Bitcoin): anchored in block 960368 (2026-07-31T08:26:41Z), 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/AUBEC2201277.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2dcf604a371a80bc6917282487a5b27f2bd8de7160910236d80cd0b9957df024. Chain 2 (Bitcoin): anchored in block 957067 (2026-07-07T16:54:37Z), 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/AUBEC2232382.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcb8251f96fd1ea0e898d59b7d738b18c542a190fcd94300030dcfd95b10e98ec. Chain 2 (Bitcoin): anchored in block 960441 (2026-07-31T17:29:52Z), 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/QM6N22141916.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x70fb7119daca581b8de0da6afb16124100ed22c2204345140968ac5554bc4eec. Chain 2 (Bitcoin): anchored in block 960207 (2026-07-30T04:47:22Z), 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/AUCY22000001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x11e32c5289bba171cbb1b002f95b21db82b4dc52c719d403ff8181bb87258a93. 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/AUBEC2231826.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0c598e588c2002898959793d460adc297990804f890aa95bf2a62ecca4351c08. 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/QM6P42025302.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf41ebb41b11c1b2f4599e7da473475970c0fd7bc817700b188b454132f9beb3d. 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/QZES92226202.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6cc356efb514ffcd90a0adb88289ef12501e8076f4be4fe8eef6fa797ac584a2. 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/AUNV01500889.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x47179ae8e3dcc346b764a1b744967dbedc3a40a248e3f6bcd3bea6611222829a. 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/AUNV01600435.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4f5ce9ed11504e465925aa8063ebdea3fa304e07fbc52f30e0f33be440dcad68. Chain 2 (Bitcoin): anchored in block 960473 (2026-07-31T22:27:44Z), 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/AUNV01600439.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe74d499f2a42c2d0807e7774928a6928b05cb64c6ccc28577f6ea07f78a74dff. Chain 2 (Bitcoin): anchored in block 960138 (2026-07-29T19:35:34Z), 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/AUNV01600434.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x599b783545885acf628ab75e00efe5a6d179b907f18217e3a155655c64d23942. Chain 2 (Bitcoin): anchored in block 960337 (2026-07-31T02:51:48Z), 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/AUNTW2300017.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x21fe68973c714cb826197cd574dad3b618537f691064455b160fb4ed9ae7dbda. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/QZNWQ2267360.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe6a8c2c0ced8a0b8c57be8df9f33f33c23a49dcaaf2257ca2d1652a1d41e6a40. Chain 2 (Bitcoin): anchored in block 960463 (2026-07-31T20:42:35Z), 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/QZTAT2237542.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9dc56a3d1f22e3cd9782ea13daf744cbab857835f790aee86c6553e5f178a135. 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/QZFZ32249044.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc5369a97ebd3b3939a0a10c8c22f07b15922314c3412024567e2cccf549bd61f. 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/QZNWS2145941.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5ecd5e477823750810e05172f600b4dce06d34d419fe19a07532801a23a17fa0. 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/QZHNA2138137.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4969dc92d921c84d4212cb13d1d592b3f5ddbb8f6561b10189ba8820ed2ea15d. 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/QZHN42004658.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xae065fc885687ebb905f63b021d8bc0f90f49a60118b3305a694b1f9b21faf87. 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/QZHNB1953375.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x74d27485cab244f39ecf385c252f119faf90d2e91592d139b408516f5ecdf60a. 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/FRU701900348.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5cdf48861116dfce9f64a91d5bc9b07f1462a9c7b7c309c33b38991aff45bb16. 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/AUNV01600739.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdf2c7bf17541f4ba06d55603938c0885a4df37cc29e8664eca82997a6ab82629. 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/AUNV01600455.
Kitsuné Musique Mixed by Arona Mane (DJ Mix)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7c2dab9dfeb32c69ac73c8fb7d82ead730f1d7fddddd8d9e6346b4053a7f4340. Chain 2 (Bitcoin): anchored in block 960455 (2026-07-31T19:53:13Z), 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/FRU701900361.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4de6fe498ee46dc3e3fd43d0b4bd6d7bf25c2063f3a6a77b3f1c490a6b97df69. Chain 2 (Bitcoin): anchored in block 960138 (2026-07-29T19:35:34Z), 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/NZTG12000001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdae7606d88a6aba6c0c2aa80a402800453fd304cbd120b63ac5634bde72ff0e7. Chain 2 (Bitcoin): anchored in block 960254 (2026-07-30T12:06:10Z), 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/NZTG12100001.
Soundtrack to Our Teenage Zombie Apocalypse
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x369dedf1563f43384bba6e9e4c5f2d26e76e2bfa4d7269b0b1e42f1c7f029df3. 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/AUAB02200957.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc817a319ba2baec01e62aec3ef6124d76c2bed76955478d9d2e0835899824bad. Chain 2 (Bitcoin): anchored in block 960355 (2026-07-31T05:49:18Z), 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/AUAB02200958.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6eae9b47ec116fe368880f8bafb0156455ddea52e153cac64f27366d24af146d. 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/AUAB02200969.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xab83fb2b1ccbf5806117ecb08d36ccb6db65414a81e365e75bb8fb034bec7395. Chain 2 (Bitcoin): anchored in block 960340 (2026-07-31T03:15:04Z), 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/FRX872344009.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x416569dbec01cce07d8a68cb97a0e246a1aa00be1fe9846bf82c9d8960157ef5. Chain 2 (Bitcoin): anchored in block 960284 (2026-07-30T17:23:26Z), 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/FRX202387446.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x416569dbec01cce07d8a68cb97a0e246a1aa00be1fe9846bf82c9d8960157ef5. Chain 2 (Bitcoin): anchored in block 960368 (2026-07-31T08:26:41Z), 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/FRX202387446.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9edaa8207ce67a06fecb96b93476d6ebbea03afbfd5441d50d5c785d143bf9a8. Chain 2 (Bitcoin): anchored in block 960418 (2026-07-31T15:20:15Z), 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/FRX872335374.