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 0x36ee011d4c8d4dd279ef430de4e4c6b83c1996d31551d3e1cc51054ca6a48a0d. Chain 2 (Bitcoin): anchored in block 954346 (2026-06-19T03:51:26Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/9ab70e13-4983-4308-909e-9d2a805c33b5.json and https://artists.proofprofile.net/proofs/artist/9ab70e13-4983-4308-909e-9d2a805c33b5.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 0xc12dffbecd0a831d5b40fb9b632519ab21f7bde7908f3001c3bd680472508e2a. 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/DEZ651372855.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc5758d7eba261badcda8bbe5e9818b54ec8e8640e7a14730f560d6a7e53bbe81. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/DEZ651372859.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x420b785990cfb746b802f6d78075fa9eb4c3e59f6df37458d3b404e86ac0a956. Chain 2 (Bitcoin): anchored in block 960418 (2026-07-31T15:20:15Z), 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/DEZ651372854.
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 0x5b856ef38c86615a7de17fb4dad1948bc8325ce6757e56eee5b9c28ea5f367b4. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/DEZ651346876.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd4c5b4fb1da1649eb715624425b87958b63fecdbf5b1127889e34104557419c3. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/DEZ651346877.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7464cdf712a7a54a0ceafcea0e6028f56937f651f786334a70b0053e11035a8b. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/DEZ651346885.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x129937fe89d107f1b4b819d15a4b834c13f4ce667e7115df42313dc7224d6c37. Chain 2 (Bitcoin): anchored in block 960468 (2026-07-31T21:25:57Z), 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/DEZ651346878.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdb872b455b758418447bb868dd10e878bc07e1ba2ccb51635b462990b7283f30. Chain 2 (Bitcoin): anchored in block 960509 (2026-08-01T04:30:37Z), 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/DEZ651346879.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x63d923b0b4e880e30b7543124adc23c65b883d14edfcbb0569828a1c69926a26. Chain 2 (Bitcoin): anchored in block 960321 (2026-07-30T22:27:30Z), 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/DEZ651346888.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x17a31bc2e65a4c8d20731bba2032247715e467de34a5986a951c5f1f49806ba4. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/GBWQK1100058.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7ca50e71ff72b686e48ee1b42da97f7ca96bd60c3fe6797900a824743b64f8a9. Chain 2 (Bitcoin): anchored in block 960494 (2026-08-01T01:44:32Z), 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/GBWQK1100060.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x10162b826f599716b2833b49985dbc16b91d64763a2dc1343894d7f2c6a6359a. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/DEZ651346970.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9b9d9aef19fbcacc2b5fbad38192da65455a56ee3f0b3d6a330f8a5bc2edf652. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/DEZ651346971.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x35d59e39314c19c775006f91beccdd545ecda2bfa539138fd2fcb2dbb1adc469. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/DEZ651346965.
I Feel Stronger Now - Patrice Scott Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5a0c7bb0a0c2ee51bb647930f6cb24436e0226a2efec7164beeeafbf618542b6. 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/FR2T02200020.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd69f74ed0cef996f0ae5f7ce7c1c0b72086a9d6e645919ce01069a5149c0b0d9. Chain 2 (Bitcoin): anchored in block 960218 (2026-07-30T06:57:05Z), 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/FR2T02200019.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfb68dbb6628e9fcb669283b6418ad2344bd55c15a25fc03cf9c1dc3da5f3f5ac. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/GBEXH2400916.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3e4ae5a24b32372256f7b9da2aeb52ce1e72f568f723f5b7032036441dfea451. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/FR4GL1112946.
Syncrophone 10th Anniversary (2005-2015)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x554e31d42d18715d5be33d253d8df23136d7c800b87f66deb60852a638dddf5b. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/FR9W11412710.