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 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 0x0af10815d88eeb3df42672de3a0cbbf4a7d867349829f3cc199563f0a614c4c8. 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/3a19d6cf-7f6d-48de-af05-7b0f15583c6f.json and https://artists.proofprofile.net/proofs/artist/3a19d6cf-7f6d-48de-af05-7b0f15583c6f.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Vicious Vipers (Official Snakepit 2022 Anthem)
Vicious Vipers - Official Snakepit 2022 Anthem
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 0x3fb22df5d347197449a00dbe715ed2cd916a591c014a305eedac9b6f472b2826. 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/NLFL72200429.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x35e8d4983d4c941d1f8148571de16da9147108ed4ba0e961a2d5583554dd7108. 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/NLS762100518.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0a32638cee52e4d411ec8c3c5209fd649b4ddc8f2fa4ec3dc7486e7282a83896. 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/NLFL72100360.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe10e33d6f19ffa28c3eeb7cfc6cb7df36f06e2c98a7cf12a4380fa068825b047. Chain 2 (Bitcoin): anchored in block 960225 (2026-07-30T08:04:30Z), 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/NLFL72300990.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x73019fe833b983c7a269ea2498177af27e71c8cfcec112a76efc69bc26bba2f5. 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/NLG422300270.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3fb22df5d347197449a00dbe715ed2cd916a591c014a305eedac9b6f472b2826. 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/NLFL72200429.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x947dfa68a776daa37e86807a246ca96b5554676fd286df1fb7ef564217731f9e. Chain 2 (Bitcoin): anchored in block 960321 (2026-07-30T22:27:30Z), 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/NLFL72300788.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x68c9549eeef731a54fbb3720aaef6e6ddf9219046999b5e7b3fcb04fede410c6. 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/NLFL72101265.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6134eb01dcbe3348f70350ae5bc5902098269e38cf1b9ecad97fd60f63c2ec15. 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/NLFL72300371.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9c8b2df07e46b2e41be6f6d6eb5ac2c58974784684f8da0245f11c81c868154b. 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/NLFL72300373.
Clash of Titans (Official TITANIUM 2023 Anthem)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x799c1c3e9bf2d493d6f9a393ec21eb40e786e2ccacdc8d64414afc93b6e403f0. 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/SE6QE2332320.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x08d101b967c272e170848c4c8d1f939217d21725d6b5055d6359e92728b43c80. 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/QZK6J2357666.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x86a0d4b61c49ed5066a497a3f75ac8dde6391c0420fabf9164a0abc374acdaa7. 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/NLH2L2200409.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xef89a5f783199982aaafdca50ddfd33b5d5c864c083af85b37a8ea587b8bc018. 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/NLS161802667.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x49088147d6f49a2d9728e4226012d49f7e181049b3a532a35e6c01f8a8f54973. Chain 2 (Bitcoin): anchored in block 960276 (2026-07-30T16:01:17Z), 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/NLS161802370.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x994600e92969361e24cb32c10bfae5964200af2878f3c7fcad1715d7ba85ff68. 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/GBKQU2325487.