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 0x6f496e57369e8b9d6f0b1615389b8d2e20720c819952bc099b4829faa21bc12b. 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/3d68d1bb-47ac-46d1-add8-3da9abb209ad.json and https://artists.proofprofile.net/proofs/artist/3d68d1bb-47ac-46d1-add8-3da9abb209ad.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 0xc4ba08ab568c5ed5f07528c35afed2fc3c55b9f0bd22983f3e89ac6754791845. 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/FIBAR2100179.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf6d4d8fd5f4ec9dba87a77da423ceb255d7499beb23723cab72801f61f8baa6a. 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/FIBAR2100180.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf713584d0cfc759b0b51a3a1a1f3b8a23f2690b7d96014537fa53746f4115242. 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/FIBAR2100181.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8f42077a42dad8d73fd9509a0e73ac8867123d9e6ab90142ba8d1a20685d6df1. 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/FIBAR2100182.
Million Dolla Smile (feat. Pyrythekid & MD$)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x29cfee48dfb0c940cfe091f09824e9a9e5c453a11f33c450de0cfc320a4adb83. 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/FIBAR2100183.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x567d4b70e239b61f0a143cc3657f8f47cae47c235f3080c7012dbade7d8e3cf7. 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/FIBAR2000186.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9994669b4567d55b2ffe58126790ae525858077bfd5d037793eb0b6007658890. 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/FIBAR2100184.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x85225772743824cb08c1bc4873e90118615675cbc9d6826be7dd8366f2307907. 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/FIBAR2000223.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x019d858d382f909c835d785dd808bf58d35b06b52d257497b5f9af5b1718afee. Chain 2 (Bitcoin): anchored in block 957820 (2026-07-13T07:54:01Z), 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/FIBAR2100072.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9e5c58d7a6d4566a361df8b6773b877badd4e7590eab48f59bc37174031ddca8. 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/FIBAR2100185.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9b09a64a211e9548307db2b2c297e9be0ba837bd8832abf3670d7390c69c5349. 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/QZHNA2373063.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe06c9cf0291e9df275d4085b124e8503da21eede40347b17e81fe0c9ca5c30cc. 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/QZHNA2373064.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaf1125b84ffe156cb334af52d32c4b1e13b3f9b384efe3339d4fd1afdf29558a. 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/QZHNA2373065.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5c61710b35265e2669b2fc82a94c498be5375ec39637e661cb7d5feaf7da2d13. 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/QZHNA2373066.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x101dba4c9e27a31e5d8e352c194204d2714aa6f542be3354dc7d4636103fbadc. 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/QZHNA2373067.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9e313993bda271e470fd8e1081c7a361e5880304fecf7fafa92d411c745827bb. 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/QZTAT2230368.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcc518d15c36d9239d6ebdc531271cae729e889bb4969d6389412e56ebe8ec93e. 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/QZES72366888.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x05899e99ec24fa7f15c8edf1665bf6c5f0d72371bd3a4b48918fd9d8003de488. 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/QZFYZ2355832.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6b693c27c2506097e739448697641658e0f741917c5ccbefe44fe86c2a185100. 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/FIBAR2400024.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x640201439702543703e11e257ff3b681c113ffff8bef93d4bb3e134c742ae23d. 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/FIS202000005.