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 0x49b16644854cfa358c77c9ef51eff3f7c8ce8638b8fb812776302939bb2e0ea4. 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/e18ebe72-43dc-4a59-b8d0-43751f562df9.json and https://artists.proofprofile.net/proofs/artist/e18ebe72-43dc-4a59-b8d0-43751f562df9.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 0x00098edee63b894018a189ec6fcdf28bea24e84a752cce93c01bb5dd8ef2dda1. 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/USAT22313777.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2a8023af1edcf1175830654452ac66a664fd77881972873b0cf8ff36b107bc52. 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/USAT22309774.
Met Gala Remix (feat. Offset, Sett, Mac Critter, Kato2x)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x14fc123bfe36f303eedfec424a818a17f7d023ccac51df6e7eb4160510595217. 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/USAT22220661.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x932e80edc45adbfb25127a06562bf31346ca4d4c35f9c42800261633f9fa621e. 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/USAT22311324.
Shit Crazy Remix (feat. BIG30, Sett, Mac Critter)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc9ca2a664e4e3285598481d524911c76c20244b9e603403ae09c5ab6653a2342. 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/USAT22220680.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9bbd53d8244ff3decef055c57c50a0ef7fbe8d03c133afdbc8a0f8197bc9329c. 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/USAT22311326.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x564aa0c076824f940c108bc371e4b58f003bfcd218a29695c6d6b8f018fa9f78. 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/USAT22219580.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc4d9e6b8e6fcf6a9de4b8ac3e2a554a23a2bd25568935ce77dad1506aa6d9994. 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/USAT22219508.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd44f76e3e3136359057c3ae3ffca93c23b3db80d0001638c0b6b9d0bd4b6a5f8. 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/USAT22220935.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaf2bbbc596484bb7ae17fb065376caed658796066e9b1c8edda53d6f550f2ab6. Chain 2 (Bitcoin): anchored in block 957073 (2026-07-21T16:42:11Z), 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/USAT22219609.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf9211370588b4e722003b3fa39af7e86a4e432b214b3911ff079c1bfaa72bc6a. 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/USAT22306838.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdf349a2f81b4a5799c5a795343e58d6f8bc080ca47687e28b4419bf8cbaa2eb6. 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/USAT22306449.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xca4e48031de8d88f12cadcbd0740e8e08258e7f541a1205325f0c7211c87019e. 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/QZRD92404694.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xca4e48031de8d88f12cadcbd0740e8e08258e7f541a1205325f0c7211c87019e. 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/QZRD92404694.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa221b90d836806a5a25df9233c5e7a7104adea2b9e221b497d2b5fbcad16cbe3. Chain 2 (Bitcoin): anchored in block 960117 (2026-07-29T14:28:24Z), 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/USAT22302949.
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 0xcbd7cde90e85ac160e7f0c8c8bba0bc6265332dd405baa780680a4019a89e8ad. Chain 2 (Bitcoin): anchored in block 960418 (2026-07-31T15:20:15Z), 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/USBAE2205649.