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 0x7e8b53b5acfe36161b6879506f5704051c6b61eef9c1019da914c56be01d92ca. 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/676a5ac7-b672-4947-873e-d966439e41b2.json and https://artists.proofprofile.net/proofs/artist/676a5ac7-b672-4947-873e-d966439e41b2.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Don't Wanna Be Your Girl (Branchez Remix)
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 0x00fd58b6dc52837a1b005f00aea7e8183fba05271a0cd557f3357a8edc937973. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/USSM11803415.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe58ee95e021fb9050ea3d951bf53aa933a03b785a1b3fba639f5b27105d72383. 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/GBKPL2159125.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd0e61d30e8f3f309cf3e911c74d455a1082824a9dd5d04b0cd068e05ceeb75e0. 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/GBKPL2159121.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1154e32da0aeeb637ac8cd7df2a9d13066d92a757772b54d3c5c4316cc93bd45. 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/GBKPL2153750.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8bd8f0b49763b3bf8cb95d163f5bc62332c455af51d04632846eeff13818dd0c. 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/GBKPL2159122.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x921fa7531766f39ff5603402b1d06e00f77279406448e2cbe4687340af649a59. 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/GBKPL2159123.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x374996c9494ddfb0e2aeda2922d0ce34ac606c40c4f36ce1dc7a9cd5c04aad53. 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/GBKPL2159124.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe58ee95e021fb9050ea3d951bf53aa933a03b785a1b3fba639f5b27105d72383. 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/GBKPL2159125.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2260ec094aaeb35e4b76291d427c8fcacee43629be56e769d1298e17bebbf20d. 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/GBKPL2159126.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x88709938516c317da905b0efc2e7735cf9f00fff194209d8e45bb7c7c9cc6fed. 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/GBKPL2159127.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe23389eab94e9166eb394cb0406f496b1e28c4af300ea30bbb4842d4105b68fa. 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/GBKPL2159128.
Larabar (Remembering Something Heavy in the Car Going Wherever Remix)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3729cab51077ab2c7213087938fbd363efe7fc9b2241db8cb25dcccd51005a0e. Chain 2 (Bitcoin): anchored in block 957756 (2026-07-12T21:36:27Z), 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/GBKPL2291585.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x589c15b01e04c0d7b494c16b00e63752d56532958b219ed91f743df3957266e5. Chain 2 (Bitcoin): anchored in block 957752 (2026-07-12T20:53:32Z), 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/US38W2242806.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb3918a539818cf33de7f0fc1588950a675aa7b967e589289cdc94ecaaa46320d. 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/USQX92305191.
Actual Life 3 (January 1 - September 9 2022)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5025c923a55e5f85139692c846060fb2cb2835d7c4d20902a72b59f0e62280c1. 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/GBAHS2201424.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc05046a51b9168077deda8bdfdbfbae706211c450f5ca90dfe8a6dc635fdd264. 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/USWB12303769.