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 0xc4a3f53cdce6c24d15a781211635adb26a6740abde2dc04e02a7d1ccc8ff2e7d. Chain 2 (Bitcoin): anchored in block 953408 (2026-06-12T19:28:13Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/08dc87e3-c298-4f02-85ca-0b93689eed3a.json and https://artists.proofprofile.net/proofs/artist/08dc87e3-c298-4f02-85ca-0b93689eed3a.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 0xadebbf4095a2f48e1495f81a5614c0e7d1f9785d4295602c35e60b19a8b479ea. Chain 2 (Bitcoin): anchored in block 957709 (2026-07-12T13:52:43Z), 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/USCGJ2202069.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x328e119d3ae96a800277cd93db80a588947e6972eaeb8745a88c4b6f5d7afaa2. Chain 2 (Bitcoin): anchored in block 957852 (2026-07-13T11:25:45Z), 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/USCGJ2202070.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x38be59a18246a88357d3b4781d767c21f5913c74c5d04fbc953cf28f775d880f. 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/USCGJ2202071.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc56a17089b415afd813889b0a3cc19ef0223310a08648585c396c170782b8038. Chain 2 (Bitcoin): anchored in block 958690 (2026-07-19T07:14:39Z), 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/USCGJ2202072.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe2ac7148d191c018f70e37cc5593e35276f6c2f102b3bcae0b1f6263e49496e1. Chain 2 (Bitcoin): anchored in block 956639 (2026-07-04T11:19:20Z), 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/USCGJ2202073.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0afbe2c8dafb712e88799f0fa903f472845822f1b04a2046283a0933237b59f9. Chain 2 (Bitcoin): anchored in block 958544 (2026-07-18T12:14:37Z), 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/USCGJ2202074.
The Makings of a Career (feat. Trevor Estes)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2299165984274a48ccd6957f20b50678e08d34ced09d5be6fd071ed69424c4cc. 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/USCGJ2202076.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0eba246681696b522d9406f25eca18b7632b5c6c870f3fc9bdbc6fe252fcff9b. 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/USCGJ2202077.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x91c7708167f995ba5c9311a66ba4e548671b34bdda3c3b0e6e88fa55473d1deb. Chain 2 (Bitcoin): anchored in block 958342 (2026-07-17T02:16:37Z), 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/USCGJ2202079.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaf932510673fa6701546d4ae726a8f8f2f25fc165fbab0716ff22bb0482da969. Chain 2 (Bitcoin): anchored in block 958256 (2026-07-16T07:22:18Z), 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/USCGJ2202080.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x75d2e45c4d0569d7921a67e0f465c15663ce30d28c5d7916d7a9e5899e37a10d. Chain 2 (Bitcoin): anchored in block 958798 (2026-07-20T02:49:58Z), 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/USCGJ2202081.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x275322d9ccfdcefd197122cb670e690ba6d1cc142f5cd3f999c24b478d877956. 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/USCGJ2202082.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xae7b9a7bc2cfb177ae2a0e8ac840394b9434818a3d6f4f975ebddf376aff2116. Chain 2 (Bitcoin): anchored in block 957709 (2026-07-12T13:52:43Z), 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/USCGJ2202083.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x73d7470625fb63c0eba50f980c7a77237b601bbc87215c3c23fb9db00008a93c. Chain 2 (Bitcoin): anchored in block 956484 (2026-07-03T10:47:44Z), 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/USCGJ2202084.
Goodnight Universe (Original Soundtrack)