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 0xb48ddafce46ae17849fa4a76908d3e4497ea449cf44366b3b30fb824e71b9461. Chain 2 (Bitcoin): anchored in block 953423 (2026-06-12T21:20:00Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/5d319e2b-0ddb-484a-92e8-452a30972f06.json and https://artists.proofprofile.net/proofs/artist/5d319e2b-0ddb-484a-92e8-452a30972f06.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 0x400614a0c0f6b7a2e73448e00957c3e3c07217528e28d19472c62b059b4fd514. 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/QZK6L2473395.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xea2ab79596bfac02f51d53d51372de412ced2e947c1f39efd73b00ade6151057. 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/QZK6P2451179.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc450257589e2eab48c96f2a127227ab4be2f344ddf54a27133ec0d63f527fec2. 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/QZ5FA2450110.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfb5c132f0dbd282fd08625f44260a1bccca777ff512da2164704048fcf2be074. 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/QZGLM2497514.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa079c5ac28b4621d81045af38c9b0c472c53404fc235b10b5fcaffc494ef08cf. 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/QZDA82448661.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0f9ee858d3b85a252d744f7cf7f0a27f0001fb3369c09c90b4dd6727da71d1f0. 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/QZDA82455687.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x78304bd7c7f95753e21be0f80386c903f754acd189a0dad9b9f29f3a150e9efd. 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/QZJG52468671.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdef53fc2b9384b92fb86591842418d76df27605dfdb68ab3b42c9027df167c7a. 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/GXBAV2313282.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x748f8e69be49fe2adc0546b4f7b23b4a96e7fe21f3eb2a8e47b9a01a9c624fb7. 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/QZAKB2350644.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x74bde01e7d7a2f970dcc287468b25f38238a835536ebd606bfefb60b2d19d7e3. 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/QZTAU2304202.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeb9804276e7d8b553cadad336c81b779051ca9d9a5d09e41f1654c545abcc2f0. 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/QZWDW2390473.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x38f44e9bfc502bd1e5447e7dc2b5131d86adf9de18ca499c46e36857c470d36b. 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/US23A1564103.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x273ad9430b9eca511a1192ca66d2fc0f0fcf9d5afb556e8cb99fd81478f2d0d1. 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/QZAKB2164097.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x330c21c6dca6aeda1b71b5decfd25dc3530e8cf8b7b9e26901024210ea19d830. 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/QZWA32200095.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe4f6a160f1539510619b3d7593d1b3efca1f27c40ab023eae9e146bddb84b381. 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/QZWA32200155.
Soweto - Sped Up (with Omah Lay & Tempoe)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe43b78c26fe4a881497e1d429b01f1c139e40387f2bfa0ddf477152ea4f08a5a. 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/QZWA32200214.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc9267286ca4a57b70c7e9ca6ecf290c2a210a01e9245dc7a91d41b62177b464f. 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/QZWA32200215.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3fd1b947f07165ec9f544e60923753d1e982af65912515f3b5ead3aa69c0e52d. 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/QZWA32200216.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc997c147222bfba548c6492569a1d9117849137b6418edb238801be886865b21. 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/ITUM72400767.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x80de2b6276cfb8192766ffa4f02165ffbbfb67c3f216b42232fe687a3fa57274. 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/ITUM72400697.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0dd50bbf67bfe018e3cc8669a801b94d164a727ca19f935d035c5e07f65a1196. 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/ITUM72400768.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3b6f7482821a3679f279bb8df80f3ca0dcf5cbe3dda012e48cba3fe5be922268. Chain 2 (Bitcoin): anchored in block 957052 (2026-07-07T14:50:41Z), 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/ITUM72400769.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaf87f9caee5d4afcc8d73be71f322abb8dc6fa89275f083046d5b536f403f911. 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/ITUM72400770.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb64aada6eacd89cb3923e0241f12dd9271b2f2d74b6168d412f3d4f65736c499. 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/ITUM72400771.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7c5a9abae61c0c9cd4569658c22105b66814e25472ad801732dd0355b057baab. 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/QZTAZ2324173.