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 0xd3d212881591e2a1527eb710d19d4207b9f5b5fe89094ab676d8177cbb32f1f2. 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/78c3d33b-5dad-4840-a82b-6e5e654c4c75.json and https://artists.proofprofile.net/proofs/artist/78c3d33b-5dad-4840-a82b-6e5e654c4c75.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Figure Me Out (From "Homieland, Vol. 2")
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 0x75d8fffe80d895a3d76858cf5ff98bf12052a2550083ca2231a894a51e0df8ff. 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/USLD90815979.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x05adcf3fea02022122ab132e5c96fc4115fac068ae839780468bbc6b78a2b47e. 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/USLD90815981.
TOUCHDOWN (feat. Gucci Mane & Peewee Longway)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5194af04534e67161d29464ce232b262a0a2282734fed91c6accb0368de1b9e2. 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/USLD90815983.
Remix'n A Bricc (feat. Fetty Wap, Young Thug & Starrah)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x25b7caed528ac014b20b732a4a1d5b7e668ba1df36cd3bf7bd648d902e053a42. 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/USLD90815985.
Lie 2 Kick It (feat. Ty Dolla $ign & Kid Ink)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcdf5cad1a05fa420113474e8bf7a3a515af3035ce85fbd8d0a16629865f651d6. Chain 2 (Bitcoin): anchored in block 956351 (2026-07-02T11:38:34Z), 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/USLD90815990.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa9e16a62e3a38ca76f73cacc7f69c30321db5f671cacd725fe11268d05f1edd9. Chain 2 (Bitcoin): anchored in block 958880 (2026-07-20T15:23:16Z), 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/QZZ772472847.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2c36f9953263f3f18768516799362a2268925208fa54e22a6474ea42d8ac087b. Chain 2 (Bitcoin): anchored in block 958316 (2026-07-16T22:15:44Z), 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/QZZ7X2484486.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x85906f928cc0141ce8a9450744845c86990e44f29dc8caa2f29e9b5832f92af5. 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/QZES72572196.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xecb6e33153567648b86d24c6825c0ea043fef521403f9d2a54a9ed0c7bf625e4. 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/USUM71604231.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd8e8bd199540d74e00f76ea6311ea91b511b8fe808ae82dcfb7de2e1aad15568. 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/USLD91731719.
In My Way (feat. Mozzy, Bricc Baby & Nef The Pharaoh)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3e2f76758cd03ac7a677d5959caed06e1a3105e91e733e734c441c43502e0b7e. 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/USRC11700075.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x18ef628090cfc053b376ebdf04804b109d3d4eb8c28b131747d58d17ab9e9e25. 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/CAUM81700152.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2b9471ec4f425f666bf365ae0e05e5ff4b92b3abe4b97a9f8447903bfdad6b82. Chain 2 (Bitcoin): anchored in block 960144 (2026-07-29T21:09:47Z), 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/QMFME2354040.
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 0x5d2c2df7ed11a310c96abb6362fefc00163ffb36535e46ea95a9abe614880f61. Chain 2 (Bitcoin): anchored in block 960337 (2026-07-31T02:51:48Z), 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/TCADJ1717699.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x36abc2b18e23375aa70a2e07240c0eac7f445299eaafd723918f988b59321ad0. Chain 2 (Bitcoin): anchored in block 960095 (2026-07-29T11:07:37Z), 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/QZ22F1500002.