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 0x358dc998dbb45101dbfd0c3447785c8e7ff61006cc1722dec9abf922d4481965. 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/dcc7b155-0d02-4960-9cc5-03a81d70e17d.json and https://artists.proofprofile.net/proofs/artist/dcc7b155-0d02-4960-9cc5-03a81d70e17d.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 0xa47322262d7147fa7dc4cddcca7051c4f38f1068ee655b9c0467042618262004. Chain 2 (Bitcoin): anchored in block 956349 (2026-07-02T11:34:59Z), 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/QZNWV2429773.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x496edb4e7c6e866fca364eb93f8bc05570a6e9117680e84e84d3b3942f0b1e4f. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/QZDA52457146.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc8db406252a0c8162a9d8e5f61ee7ae763d3b013c5b52be58a83be16da329ef6. 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/QZNWW2394214.
Hayii (Citizen Deep Remix) (feat. Yasmin Levy)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe23fcdbbc9516f21e1b049583afe73401bd746ba39a7793c185e0ef8608d4f6f. 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/ZAE5L2200016.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x72d695cf0dcabdcae9464ac8615c0a1fce4bc4ce7abd6ffbc8a6dde996ac4866. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/ZA56E2201089.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb29a0f31d9118ba1f163ccfba5fac6ec2c9873080310ebf8a8e09fc5c44d1057. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/ZASVW2200004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x788a2ade492d97157673d9a5d12dffe5d9c26e8f48188c60dc422fcac9560184. 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/ZASVW2200009.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb0a9a35c148a90859660d37a981cdc0983266c80e29443171f27decc2dda3f2a. 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/ZASVW2200008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6ef50380a80daa4088952681c5b09493b5bfe47543d12903d408dbacb6f69f9e. 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/ZASVW2200007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9fd8af4708a7f766beb850d11544835ece5f51046f83d3ff0fc86758f1fb1aee. Chain 2 (Bitcoin): anchored in block 959109 (2026-07-22T07:21:40Z), 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/ZASVW2200010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x69a6e2e1f003a0c82d63796ef165d29da83a9e8604adad509130091c751d1e88. Chain 2 (Bitcoin): anchored in block 956349 (2026-07-02T11:34:59Z), 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/ZASVW2200006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8bf31e8f50e1d2f87a9f268e5e1ace9f4e7494d5ca00baf33d34e61d9e690f82. 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/QZRP52106193.
HAYII (La Alegria) [Radio Edit] (feat. Yasmin Levy)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd58a3080b8de0a62d954d9b9595f7cc20173b5fc04786cbed0d65b43e825a192. 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/ZASVW2200005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x575326a68041c9160ea67922b7dc91f3865be04854c16c2ca295d43ce7359b97. 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/GBKPL2280283.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8bf31e8f50e1d2f87a9f268e5e1ace9f4e7494d5ca00baf33d34e61d9e690f82. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/QZRP52106193.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x310a42c3c47822449180243cf3d5cf6f4bbdd0653752940d10a73b9511005482. Chain 2 (Bitcoin): anchored in block 957084 (2026-07-07T20:41:57Z), 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/QZNWX2153043.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9f6fdec4c619a3c2007ffd97b900bc288c2d490de1e1b63f106d3c7a846bfa13. 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/QZNWS2134496.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x739bbba354dc8fa2004e24a418ffaa56b1152d55fbebe7f7b478b2d08bb455a8. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/QZK6L2110344.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6b7916848eb7899439272247a698bd1fc6ef73e557829884621a6f7c3c6ae8a4. 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/QZK6M2129158.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaeaebad01679f527de31a06dc14efe7812138d9c3187ad6612ea8cb3efda7bef. 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/QZES72172289.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7e32e3571a6fe4287bfa3197a3aaa782e4e799da074b35f5a66d2a2dee700beb. Chain 2 (Bitcoin): anchored in block 956351 (2026-07-02T11:38:34Z), 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/ZAZK92400005.