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 0xec91ffff10f9d96d919329c022f1587d7a7e255a8af8a41edafed5aefec9a658. Chain 2 (Bitcoin): anchored in block 953625 (2026-06-14T11:37:06Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/246f2ada-1091-43c8-b4d6-c68eba7f8247.json and https://artists.proofprofile.net/proofs/artist/246f2ada-1091-43c8-b4d6-c68eba7f8247.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 0x7fba2ad82a7e366adf3cfa8c5efddfd352887b6b19b61dedc983940d09b96c48. 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/DEY472172144.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd209e42587cedd0f8e03e1be81b48dce206bc8fd189f8b12afdd38b25ec9eecb. 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/US83Z2211400.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb2a2c865d77f59ebd4c54999d49dc0992f598d3a753f3f36a8df0ba28ef5b8ad. Chain 2 (Bitcoin): anchored in block 960240 (2026-07-30T09:57:33Z), 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/US83Z2211401.
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 0xa7374f4ef354332eab21e3ba9c6bdb4a19ae8de41f0eb5e73567664998b9b704. 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/US83Z2100671.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x51340086d34a5619b6305a9a9df4196781424208dfeccb3d108376cec34031ed. 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/US83Z2100679.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x275c0a546ccd9f59c611e86a064ca7d417e6eb88964072738d36d125834a5cbc. 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/US83Z2480268.
Clonal Transplantation - Joseph Disco Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb216577049c34b444759ceb32cdcbf30d582e470e3d53ee2cadcdf052721483b. Chain 2 (Bitcoin): anchored in block 960506 (2026-08-01T03:50:58Z), 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/US83Z2480269.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x082f0b5a05fcbf9a339701647a9a541ecc2b56dafe5590691625c6be202e3ce9. 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/DEY472279226.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1e060a56cd79948c0fc282c4efaf3edf7fd9f909bcd3ae3a92ca07c613e3378b. Chain 2 (Bitcoin): anchored in block 957122 (2026-07-08T03:39:04Z), 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/DEU672200798.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa8c9e43b8b16e0d1a18f40ae14f774247b0d490f157312d9332bd7518558e51a. 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/DEH742169056.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x11a3bc215d38fa3c00a374538b669ca1290301e7c1dbc860a01079eb275ebd18. 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/US83Z2130831.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc6503a931068f02edfe151315a2f8e839389f8f54574166db541917efe377f46. 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/US83Z2122205.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x63e6cd9eaa79d9738a2e0f25e2494223fe84edf2881e1e905cbb072548b26aa9. 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/US83Z2122203.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc34a89f3d53fd15bc0f81f5f741b2162f6be65d65855965d1a263276687df3a5. 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/CH6542011725.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa85d026b85db2ac731cff80cc3bbfd0ddba81cb7cf5665511d037240985bf6bd. 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/CH6541782910.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7f7865801625e87150b427a81b3ba37b561125a080c56a895bd950c2d7811f2e. Chain 2 (Bitcoin): anchored in block 958041 (2026-07-14T18:13:17Z), 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/CH6541946210.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2eca421d55f0813592f1972e1b929f2f7e3981c6bb082bab3729c6d415050a2a. 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/DEH741651018.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x84574206531f630df48c8701199423035e997e4926b8d67aa02b2b843fee9dc3. 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/DEH741651444.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1ae90e45f51722fa303b2ff366c8a32c034ba0c477d9be081c224a144efdb6b6. 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/DEH741651443.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1347fec2b29981c29031d0b59e6bdba9ec65ce939fbc9ab7698f4bb5181f2ac5. 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/DEH741600824.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x561e16442a8101382fb24655fd8c7cf94fed7396e90f8d812e621ce719be2ac6. 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/US83Z2491988.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x55bf2fa7a48e05fd62bc2f34b5e3b7018710008b797226270124f586b9c8df82. 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/US83Z2491989.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x583b9f8143325056c1a48037f234b5b368353b8f4b86a2f229164d0be07759d6. Chain 2 (Bitcoin): anchored in block 960291 (2026-07-30T18:23:33Z), 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/US83Z2491987.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2e953044993ceadde4cfc087087578851ffb4a6d2f7066a14ef2f32ba282119c. 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/US83Z2489208.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8232d2b11a123d693bceb149bf959acb90cab604a93592868846379d2182dd15. 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/US83Z2489209.
Toilet Tales - Daniel Jaeger & Joseph Disco Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8ba163d209f9145a08173b43ab637b050af91aba07fa5b37d8163c4916476d0c. Chain 2 (Bitcoin): anchored in block 954130 (2026-06-17T19:07:14Z), 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/DEHM81600923.
Criminal Bassline Various Artists II - Mixed by Daniel Jaeger (DJ Mix)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x840362ee7f9513475d59433f73b5e58d514e54c5bbc51e05759688349a113ba5. 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/US83Z2034050.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x59efbaf4ce92532eb248a1373a7b49b8affc04213df9ef61775f7a5ec740383d. 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/US83Z2024565.