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 0x000bdd303768781c20811e23aaaec5e507d22a8b44e43a387c367dd093b834ba. 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/16c3afc9-5daf-4ce7-aa08-80a32b4c41c0.json and https://artists.proofprofile.net/proofs/artist/16c3afc9-5daf-4ce7-aa08-80a32b4c41c0.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 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 0x1bc0cb0574c69b6f2604449e1e7f50d93957d3a1cdceea9a161669ba74e5190b. 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/QZFYY1930759.
Can't Outrisk (Live At The Kessler) [Prelude]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb5d0f4f3034e4a9edcf3f6c9d8aae399a7303b79cbf1d0935eb4c68d1ec8308c. Chain 2 (Bitcoin): anchored in block 956889 (2026-07-06T06:56:49Z), 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/QZR8E2300012.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x477685d7306be66b164712b24d988105efb0a91898deef5f6c7f3bda26e5b01f. 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/QZR8E2300011.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x12b42549a28c049899ee74b957705c77f6d098dd9b7a33a4331063759536755d. 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/QZR8E2300010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbe2b393fa2db35c7e571cdf2b06089bc73bde16a10db87e809b311102747583b. 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/QZK6J2084782.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4f370009cd9c0a818f7d84f5378a7dbd5ac799915aa1458ae4151217129b299d. 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/UKW3Z2202272.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7d3537ed06fcecdc1d94288243ca9d3741d5b6f7ac7bc89eef599e51132f0e07. 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/QZTB92417782.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x170ffbd156f72b5dea9a45f91961afe5511f148c6eb3d602c8cd13240d72cd61. 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/QZTB92413569.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x42a0fc86c9546e84c6526784ae5b933f27837f5e4728cc6c269500563215e8a3. 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/QZTB92417783.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x166b845235855a32410e27fef5580f49cb54db23ed9ef6674b24b8eee718bb6b. 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/QZTB92417784.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc2c146245e531f81d04c859d3d28bcd31a93ed216d494e25e223935fbfaf0147. 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/QZTB92417785.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0f5a7d849582e6a93a10697dac1b5e8996a066f9b7b4063dc51de0b3f1bcc04f. 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/QZTB92413571.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x42bd7925d0266b068c31af8b223bfb08de736606c319a16be9eda6914d8ef631. 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/QZTB72408052.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcdd6246a20d2387fffe078362ecff07f0ce3be9c9e394b9b9edf62fcb9a0be9f. 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/QZTB92413567.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2a3186a8f9a96676a115b0e9ceb5aaefabbdda1a5168b2e881d5fb0c67323d4c. 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/QZTB92410331.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe984d2009b20d5c1d9bd80ca005d811f4fd6e06e8ee35d5598d74f4400e2665a. 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/QZTB92417786.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd452c325fa6011d79533ba7965e1e2914708a7c0b92df0d53307f45d5a91abff. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/QZTB92417787.