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 0xbe694958a1516d01ce8b75891b3fa984f4575a716e060ad37e4a14e3eabe51c5. 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/2ddca96e-1719-4186-9bc5-f4e952cddc0f.json and https://artists.proofprofile.net/proofs/artist/2ddca96e-1719-4186-9bc5-f4e952cddc0f.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 0xdfffaac65d959b6534ade7b491d0faf46829c29549f116f6c9711bd0cf3c6854. 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/ZBOCE2300002.
Dropout (feat. Malachi, The Big Hash & Elizée)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf388d491c919922e0573de14ce39fb5ea1cfc8ad84e9e9f5e6c8761b0a3987ca. 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/GBWUL1804326.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0b2c3b04529dd80f262514ea975a55eebd9c8c01f27333fbc20894fe22920ed4. 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/ZBOCE2300008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdc6c12e087ce78f226aa88f225274bbbeef8a80d68023106ce79b985b37efc2e. 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/ZBOCE2300009.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa30cfc5af4eaae845a43ddb476e720074717468fa0680ff84b58a8ec05ee6a70. 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/ZBOCE2300010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x47407098ae3db279e1e21ef146ee3cda02325d9bff8e7de2c380d49721ba1311. 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/ZBOCE2300003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa3d74c4e70b7958cb3e571aa3d191dd42205970e665ae236c9e5cb4d7370e398. 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/ZBOCE2400035.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2d56e805009757a9fa7e6072c5abc36e758413e17923f2553063359a54ed32c5. 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/ZBOCE2300001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdfffaac65d959b6534ade7b491d0faf46829c29549f116f6c9711bd0cf3c6854. 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/ZBOCE2300002.
THAT'S WASSUP (feat. Thato Saul, YoungstaCPT, Tyson Sybateli & ZRi.)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbcad8f622f2cb47fee04586f02b2b962304405fd4ca7e0d233ded94dbc847e40. 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/ZBOCE2300014.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xda09780f9a5fc7cee83122133bb24221bb87299c5c0dceb25452ba0e8e80e3aa. Chain 2 (Bitcoin): anchored in block 956349 (2026-07-02T11:34:59Z), 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/ZBOCE2400027.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x560969c00d87cb75fc91d52e3da37295c4e1c9fd16aed5c60c2f85423c1ec26a. 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/ZBOCE2400029.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8dec60ca058592d83db680a60491f91777d44a5fed00dc6396e0bd797eb6faa3. Chain 2 (Bitcoin): anchored in block 957032 (2026-07-07T11:43:09Z), 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/ZBOCE2400028.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd42699728698f60e7f796f4aec6c208913a8532fdaa9af46a884a5f5b6615716. Chain 2 (Bitcoin): anchored in block 957819 (2026-07-13T07:53:33Z), 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/ZBOCE2300007.
LAST TIME I CHECKED (feat. Mo$hpit Cindy)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc99bfbf717db441f2f3e70d3729d58e03395ae9269968a13d55d95cadcac5a06. Chain 2 (Bitcoin): anchored in block 956349 (2026-07-02T11:34:59Z), 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/ZBOCE2300012.