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 0xa534c9f5648b1c640c239bbda87a6a0618c0e6e231836282f90257de9edb8db2. Chain 2 (Bitcoin): anchored in block 953408 (2026-06-12T19:28:13Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/e8f0fca9-811d-4bfb-969a-1a4af30b4244.json and https://artists.proofprofile.net/proofs/artist/e8f0fca9-811d-4bfb-969a-1a4af30b4244.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 0x4daac15b4d2dcbf7765ecc10d35a753a4e81466a40c073e4a68e14ad64d578b4. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), 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/QMDA71399268.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf3b7f93a609c3da76cbd1afbd4cd32b394391ab1ec9fcec5d6bba696303afb51. 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/QMDA71399269.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd14146fe6a8e8875dda516a005f70968ea47b9f804c1f5e34ae01a6021f685d6. 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/QMDA71399271.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9e76eed05a4d4dd0b42bb1096e8ce8eddfd30bef5c77d65039d1dd01f761587d. Chain 2 (Bitcoin): anchored in block 958428 (2026-07-17T15:15:14Z), 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/QMDA71399274.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb8ff11852b9ba6036c9c46e1a4493677db83aedc17a9f0f1e89a4c614680a0da. Chain 2 (Bitcoin): anchored in block 958180 (2026-07-15T17:59:52Z), 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/QMDA71399282.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x14796972bf00539da12e29372c6020a26fae13368bd2a6a22463e32fcfd2981e. Chain 2 (Bitcoin): anchored in block 956748 (2026-07-05T05:55:59Z), 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/QMDA71398903.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc24be7c31d54d0112258ac222aca8328c1d5587030b62572f1fb566b6bf2085c. 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/QMDA71399303.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1a12a770682a9c024770baa4046c6a81addd6ba06a545577a8fd327bd19b9e38. Chain 2 (Bitcoin): anchored in block 958563 (2026-07-18T14:29:03Z), 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/QMDA71399306.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5428622cbff11bfad64486dbbf199a76015f186cb5831b784a576b5bb5a72ae5. 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/QMDA71399307.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xff1fd449e6196590f8cc61180622c87eb83dbf5f4dc66d84c94e04007b9a1ba2. Chain 2 (Bitcoin): anchored in block 956420 (2026-07-03T00:42:11Z), 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/QMDA71398879.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf5fbecbc7e92df630145147a39fa1c7089d4059751cb10379959be626f297055. Chain 2 (Bitcoin): anchored in block 959047 (2026-07-21T21:36:17Z), 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/QMDA71398711.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x521e2f54b94eac5859e33072a71ad80c9424b29bc7cfdf2da87d03331b7bdb32. Chain 2 (Bitcoin): anchored in block 958867 (2026-07-20T13:08:09Z), 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/QMDA71398688.
Down with My N&%@s (feat. Lil Mario, Chamillionaire, Big Pic & Lil Ron)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3ad511054554a39cb7cfba80ee31ab96896c05f997f863a0b87d4ff46412fe10. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), 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/QMDA71399283.
What It Do (feat. Paul Wall & Chamillionaire)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x76c0668140fceff45a3e2859c1610c213d5c4bb68ac80688d25ec2bcda4455d3. 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/QMDA71399285.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x14dbeda8e09ebe207775e75560eeaeca0f34ae6281f1974a35cdd214cc64a78b. 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/QMDA71399287.
Hold Up (feat. Big Tiger, Big Pic, A.D., Lil Ron, Archie Lee & Sabwarfare)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x84a07966b566deefee17924a98e862fbecd2e837a012d128a2a0d2b44c60ec76. Chain 2 (Bitcoin): anchored in block 958340 (2026-07-17T03:09:09Z), 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/QMDA71399291.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x24594ba060be1a92e17f37f96c0c0d31484736b8cc92aa6963a3fa26a672724b. Chain 2 (Bitcoin): anchored in block 958504 (2026-07-18T05:41:32Z), 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/QMDA71399292.
Shut Up (feat. 50/50 Twin, Al Bolden & Slim Thug)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x911c5e99d960d70f61e8bc43d27fbf2a865ea605f5db72d73a73e14c3a25317e. Chain 2 (Bitcoin): anchored in block 959031 (2026-07-21T18:53:38Z), 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/QMDA71399294.
AK Flow (feat. Paul Wall & Chamillionaire)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbf2101c18b7391822d21bf740c4354b130a98fcf0aa2edab3ffaf335060ad939. Chain 2 (Bitcoin): anchored in block 956420 (2026-07-03T00:42:11Z), 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/QMDA71399299.