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 0x3df30b6e95dd0fb10992e322e1a4c5e6afe76530d370c83eba15c250472c7b6f. 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/6ca3f3e0-df06-4239-b321-f3af99da6856.json and https://artists.proofprofile.net/proofs/artist/6ca3f3e0-df06-4239-b321-f3af99da6856.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 0x6305d2b76093de973efe6d0b56cc56f3bfe0c912d312f77f20073d787b2695b3. 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/USHM81822668.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcc9b3725bf598c019bcd88c556512b6574c609b394a3fb39eaf86f29c7a2bcfc. Chain 2 (Bitcoin): anchored in block 956551 (2026-07-03T21:18:05Z), 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/USHM81822669.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x86d68a1562c9b09f119966be11b847dff14236c94ac799ffd5bfdb1521bdc42a. 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/USHM81822670.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0847da4221b7e1e259b48395f5b1fc6e293dcb2003525482c8765e472e1bb2b9. Chain 2 (Bitcoin): anchored in block 956396 (2026-07-02T21:01:51Z), 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/USHM81822671.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x88f93e5f9c4e90b1dc4bc5d51e027b53a2e90483620ce9d94b4a886ed64c1025. Chain 2 (Bitcoin): anchored in block 959100 (2026-07-22T05:29:55Z), 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/USHM81822673.
God Released Me into the Wild and Now He's Hunting Me for Sport
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x18477c6fc7e04a8875caffaa3352c3d7e123491db0c4d583806ea9e910028b51. 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/USHM81822674.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf7eca87eb7e2e787123a3c1fc5f8bf0d0f9855e533caba8654be40c494c5dc98. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), 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/USHM81822676.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x456f7b669d50cbf34db676d4647f89625386f837f20dd89990c51eb102779bfe. Chain 2 (Bitcoin): anchored in block 958115 (2026-07-15T07:27:09Z), 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/USHM81822677.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x22698d8e233c7e3600c2a65f8616d7f923d4dd38e3ef20d7e8b6f280bc6205ed. Chain 2 (Bitcoin): anchored in block 956728 (2026-07-05T01:43:49Z), 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/USCGH1959041.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe8631edd17546dac358fb78c63473141213b60f1f9507aa4f6fcb6f9ca99f8cc. Chain 2 (Bitcoin): anchored in block 959100 (2026-07-22T05:29:55Z), 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/USHM21934194.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2392a1623235d3d8ce78eacfd12e4e94fa131fa43373b11612595f1123e17ec4. 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/USHM21934195.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe67fb9f19a6f1f10f100b65c11f0682a6aa830524b402649eee1cffd36d2dd76. Chain 2 (Bitcoin): anchored in block 956822 (2026-07-05T18:48:28Z), 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/USHM21934196.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa9d29335e92059ffe7566f656c3416e5c92c0e163ed5a1abc4f7e2d33c076750. Chain 2 (Bitcoin): anchored in block 958238 (2026-07-16T04:30:31Z), 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/USCGJ2124131.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x25988d4a4d1b4c96bfc88d1104530a118ad6875e611d3d151c871086b307cbf4. Chain 2 (Bitcoin): anchored in block 958473 (2026-07-18T00:52:36Z), 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/USCGJ2124132.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x34f09a5bd5d799f1cf7b7e3f94721bc60075ec1a4a6d9db1e47c86bbcf28c1aa. Chain 2 (Bitcoin): anchored in block 957851 (2026-07-13T11:26:33Z), 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/USCGJ2124133.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe5eed6c542e755e698a895e7486cca4d4e02f961733244225d9145e4adb03078. Chain 2 (Bitcoin): anchored in block 958590 (2026-07-18T17:28:56Z), 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/USCGJ2124134.
Alexa, Tell Me Everything Is Gonna Be Alright
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3821d04430a5f7c2627b4a6e5f0f7988267b19ccaa4bfb547e3868332ba8965b. Chain 2 (Bitcoin): anchored in block 958444 (2026-07-17T19:12:23Z), 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/USCGJ2124135.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x83c7b54d6e642681c4c444e8d282e1355936177da8b0e8e659048a66e9d16606. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), 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/USCGJ2124136.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1b7ea414605b197030174eb887f8681efa257b8a1692a885f3e6c7612b5a78ea. 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/USCGJ2124137.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6819ea9828d04328091e09ca4d7d4373ce718a93ef815557fcb0fa65a1fa6f75. 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/USCGJ2124138.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x67182ab9f3c705118c7015f489fa3df32a45672d49d0e73c0e81da392a98e2e2. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), 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/USCGJ2124139.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3225b5f4bdad1dfc30243575041043d5f85b7e874aec1f1ebf6425fa4fbf4925. Chain 2 (Bitcoin): anchored in block 958541 (2026-07-18T11:37:54Z), 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/USCGJ2124140.
God Is Asleep at the Wheel and I'm Locked Inside the Trunk
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1e41ab33a3b6ee2bdcc3a28036696129edbe9c92cac5eb235e2bf5b36240667d. Chain 2 (Bitcoin): anchored in block 958774 (2026-07-19T20:03:27Z), 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/USCGJ2124141.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf08fdd10c6bf4021909298c59a7ccdec1e106edf80988e25946fddf2dd5ed378. Chain 2 (Bitcoin): anchored in block 958653 (2026-07-19T03:54:23Z), 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/QM4TW2413760.