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 0xefcc85c822894a50739621641f9599f0b712dc85be652939cfb60364c4b614c9. Chain 2 (Bitcoin): anchored in block 953423 (2026-06-12T21:20:00Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/0046f043-edcb-4ca9-afce-c9c8d932fe34.json and https://artists.proofprofile.net/proofs/artist/0046f043-edcb-4ca9-afce-c9c8d932fe34.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 0x7077b3a5de3703787c7fcdffd43233d637574d781962a07cf7c67e0b074d4c83. Chain 2 (Bitcoin): anchored in block 958176 (2026-07-15T17:14:36Z), 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/GBSMU3654210.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x377ad14719aa55ad3f4731f9e5bb6cd50f8c2173ab0c4d5a5f725ff0805ab5f1. Chain 2 (Bitcoin): anchored in block 956711 (2026-07-04T22:48:52Z), 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/USHM21738649.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf773b13c5ed28fa3b8dda252eb3f135c237d7d097cd0ce620d428fda48626590. Chain 2 (Bitcoin): anchored in block 958166 (2026-07-15T15:55:19Z), 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/USHM21738651.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x53291bc0438e0bfa72efe0c36a5aa5cac04e06f8a7a61971bcedcc1a7c7341bd. Chain 2 (Bitcoin): anchored in block 958357 (2026-07-17T03:33:42Z), 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/USHM21738654.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xac4da959b80e4be55bab1f3d1b08abf71a986882fffa18aed4c8469414cd39ef. Chain 2 (Bitcoin): anchored in block 958410 (2026-07-17T12:18:07Z), 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/USHM21738658.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb9c4ae28137be08016de4f4b85eb1cfb254ae37df8b0fa60aa6ddb29801254eb. Chain 2 (Bitcoin): anchored in block 958504 (2026-07-18T05:41:32Z), 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/USHM21738660.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x35e5a0b452becc229dde20808ae873bd35104b6a9109cefb1eb7da868c4359de. Chain 2 (Bitcoin): anchored in block 958268 (2026-07-16T11:30:18Z), 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/UST8K1868815.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x11b9ea8a40ac448fff49ded30f2e7f145e894a1d6505e71d60ff8e25eb88169e. Chain 2 (Bitcoin): anchored in block 958224 (2026-07-16T02:28:43Z), 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/GBKPL2010381.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6eb2570cf815711b7230eb1cb6f9a97dad9a39de38b85b782006edd5742ee30e. Chain 2 (Bitcoin): anchored in block 958489 (2026-07-18T04:13:26Z), 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/GBKPL2021353.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x906aefaf07261471dfab23dec0e6024d282171a0a0f965ae22fc91a059e4bdab. Chain 2 (Bitcoin): anchored in block 958083 (2026-07-15T01:50:31Z), 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/GBKPL2279962.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf303b3bed8fb3aee4dc1076219e8469261a6624be4f4ce7bd7d1a5d60747a28f. Chain 2 (Bitcoin): anchored in block 958538 (2026-07-18T10:30:13Z), 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/GBKPL2279961.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb4c29b1ebcfb6d9a17ea54a9bd8c9cdc7f1c1f068e8ef8b60348808db1f968fa. Chain 2 (Bitcoin): anchored in block 956402 (2026-07-17T04:24:28Z), 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/GBKPL2210348.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb3ccfcac6935058a73281b28ff435b3381ffef0e6c81bad02b09f9e8d413cf13. Chain 2 (Bitcoin): anchored in block 956856 (2026-07-06T01:25:57Z), 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/GBKPL2295471.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x48ad95e5b1704af562d1078f2ee957c113a1d0c710aa5fa3e9b320dd92ea99df. Chain 2 (Bitcoin): anchored in block 958601 (2026-07-18T19:27:02Z), 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/GBKPL2030822.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9bac88ca4d8ed135d07ef70807a998e516ad4bc40370d0404c9f43dd7b5eb6b0. Chain 2 (Bitcoin): anchored in block 958316 (2026-07-17T03:03:05Z), 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/QZES72409048.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc1f79166e19d81f77da29e7c6d07d17d76302945547439d64049b3e55a97757c. Chain 2 (Bitcoin): anchored in block 958489 (2026-07-18T04:13:26Z), 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/QZES72409049.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3205f169acc92244eaff5333468a4edcedc468c1a790eaccbdfabe1e65f67dda. Chain 2 (Bitcoin): anchored in block 958271 (2026-07-16T09:16:54Z), 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/QZES72409050.
Lobotomy (Help My Brain) - Instrumental Version
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xae188995c7347f9d5644630457b447149fc5b1d02e5ae0d82d0f2dbd4756a565. Chain 2 (Bitcoin): anchored in block 958271 (2026-07-16T09:16:54Z), 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/QZES72409054.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5511a08e78535c05ac18f7c7c21bf58593406a36136b1b3cee7dc7c13aa6cdeb. Chain 2 (Bitcoin): anchored in block 956440 (2026-07-03T04:03:57Z), 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/QZES72409055.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x541a721fb421505091884315118ee79dfc097e9a938b77401173277e6f16ca05. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), 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/QZES72409057.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xff31f92d0b45cedb800f036d5ed90fbea0e0a79cbeb64cd51470ac854cad1e71. Chain 2 (Bitcoin): anchored in block 958726 (2026-07-19T11:47:20Z), 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/QZES72409058.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x48ad95e5b1704af562d1078f2ee957c113a1d0c710aa5fa3e9b320dd92ea99df. Chain 2 (Bitcoin): anchored in block 957751 (2026-07-12T20:41:42Z), 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/GBKPL2030822.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x906aefaf07261471dfab23dec0e6024d282171a0a0f965ae22fc91a059e4bdab. Chain 2 (Bitcoin): anchored in block 958079 (2026-07-15T00:21:05Z), 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/GBKPL2279962.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8d39c6f1b806a096beae143a3dfa6d0880629fc37e3165a0f5d8e1dc2d8cfef3. Chain 2 (Bitcoin): anchored in block 958489 (2026-07-18T04:13:26Z), 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/GBKPL2203964.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb4c29b1ebcfb6d9a17ea54a9bd8c9cdc7f1c1f068e8ef8b60348808db1f968fa. Chain 2 (Bitcoin): anchored in block 956474 (2026-07-03T08:56:35Z), 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/GBKPL2210348.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x028e55e6e6ca74a89cb9b2d9087a6525aad0e3d391376e577f2af11c1351c8f0. Chain 2 (Bitcoin): anchored in block 958721 (2026-07-19T11:02:33Z), 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/QZTB22377593.