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 0xd7abfbb51f22ce3911620012c16a7dd27992ba3a16b8c10e188a55b045838214. Chain 2 (Bitcoin): anchored in block 954065 (2026-06-17T08:10:43Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/424afc22-55ff-4efc-b3b9-c5b5ad3bcfbd.json and https://artists.proofprofile.net/proofs/artist/424afc22-55ff-4efc-b3b9-c5b5ad3bcfbd.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Stay On My Grind (feat. Merc Mason and Sophie Gunn)
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 0x8e0f7908541b58397a474618aa1700bb31c07a7bed25dca7aad2c82b57c939ab. 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/TCABP1316728.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7f22f3530fec455131f35399172c230b30ff038920101e09270780eba27f36f8. 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/TCABP1316729.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa5600efcb5b90edecb38ba43301319cb4797d4662da5d6deffbd161a978496a0. 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/TCABP1316730.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe6936dc22f1bb357f4075f592a1bf33f0ddccb7fbc0649b799e48828fcbbfa42. 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/TCABP1316732.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1a8d88074e4ecaaf0a5e67791ed0c3b55cc427be3674ae1062f32a7c88d4f89c. 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/TCABP1316733.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdf9735ec1a4976ad7265cb054bb5b649328d0c0a48568307cdaf15a5c1790f91. 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/TCABP1316738.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3518a0dfaa2d3340aa3b8b504e5838f1d5d8a2d1b798b821a489cbe6c747bd23. 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/TCABP1316739.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x99552a0197b051352cfb2d10a1f0bedac443fa480a119ed3c5c2f404fdbea65d. 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/TCABP1316740.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdf8cdc36d5e9f0d17e5e6d2f0a0f09fcea7ad0e585cf79597f3f5bda617bca4c. 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/TCABP1316742.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x660ec1a557bde1728b38884915eb9aa36880d5fd20361c48a338aea5118c0982. Chain 2 (Bitcoin): anchored in block 956894 (2026-07-06T07:53:57Z), 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/TCABP1316743.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb179bd6f95630bfe1e51abcfef25d95e2cc22932fab434c78f13815cf7619be9. 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/TCABP1316745.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe30494cd91a7cb22bc5d29002097ef203583f34d35abd6a6306bf04e3abb847f. 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/TCABP1316746.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb4ec48123e4aa49f12428fd614ed073dbb1f6cf7b0398d015e6216255cb868b2. 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/TCABP1316747.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe306c22483b4704de2f15e3864e93302d65eb8adf790864a2324c24e5c6f4d3a. 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/TCABP1316748.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x74e0ac220639d8ee0779a731aef4f28dfb274537e59b9dc72b484ca949fc7203. 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/TCABP1316749.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x877f456e2a8dd6f11459573fa184ce2d5db5d4a00b3eb5f8e347a61224b4ab5f. Chain 2 (Bitcoin): anchored in block 960108 (2026-07-29T13:09:35Z), 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/TCABP1316731.
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 0x7010d5f0f8c440a91e02556ec83ee1b29c253d18e0a68db3c271889ac6396baf. Chain 2 (Bitcoin): anchored in block 960106 (2026-07-29T12:41:21Z), 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/TCABP1316735.