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 0xed64e018dd228a248069e6daeca2d61f819bfb5a2440470def04081bfbfed931. 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/b34a158c-9570-433f-a349-952974fa76ab.json and https://artists.proofprofile.net/proofs/artist/b34a158c-9570-433f-a349-952974fa76ab.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 0xa953aba6c340ca6057a1e183476e0e39d5a28dd38285417d8a2b2eb1b074467c. 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/CH3132318082.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xce9f74e67f4657869ed524167a1e4351b9418bd4ee1b493ece130d0ad8b9314e. 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/CH3132217383.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6b7282965b3989df0648b3ad44f76b64a7de5f9516c3885b4101af6ff1ae52fa. Chain 2 (Bitcoin): anchored in block 957061 (2026-07-07T16:07:00Z), 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/CH3131914758.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc2b76361cd8ab197e68670b29dcad544c7af7a48a5bac8f250c6650c7921dfaf. 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/CH3131814356.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9a07cd3b903a3fee7d8bc391cc0b6d0efa59ea03856068886dca46a5d0026346. 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/DEN061701199.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xab84a8d0020524158dd07417494b0b635c910c91e7e92bcc83ba8eda346991de. 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/DEN061700959.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc4b54da128f226d455704035e2df1b2e025259adb94341207a6c3b6a26831ee0. 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/CH3131512857.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbd6bb62c022c153c96872c3ae086074bd79242a84d47abf701baddda255376f7. 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/CH3131512611.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9a8e550667f230be823ef15fd0c53b46c071add5974546ef17dc7656d35600e3. 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/CH3131512613.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdd2d41d7fb5722d67297d8ddc2afb8561b6b2ab8edb845a8c121000a5f2eb57b. 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/CH3131512268.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7fabe4a2c545080e6b58b9eefc7f4936300185e101c787bad6e9f4d1d0fbcd18. 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/CH3131512267.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcff182cd266e315ca052dee33eb7fc632325ad38e4de49cf40367324c112fb22. Chain 2 (Bitcoin): anchored in block 957819 (2026-07-13T07:53:33Z), 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/CH3131512270.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7ad2b4c263790547572c56e36aeebf18c5df57640f702716c2ef6a2ee4065a75. 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/CH3131512269.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5f9d01d7ac718ad3b1cdb7d3a621a87faefe1c998ab84ab498d26dd1169db7dc. 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/CH3131512167.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd4667ff64cfe7aa132584b4b04d6d66edd1ac013915000920729333ebc12b507. 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/CH3131512170.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x265556c77687556e4ae416fbacc0cd1f8a8606b048d573d3f7424f3487b652d9. Chain 2 (Bitcoin): anchored in block 956894 (2026-07-06T07:53:57Z), 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/CH3131512168.
Shake the Room - The Croatia Squad Remixes
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2a3e106b04bc7e488b4363a343a9284b81da1f48380ba5a15f188dfe1f7755e0. 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/CH3131411842.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xafe0d44b664683daa982dd2a0663676490f7f1a11cdce2209b74210fa11516e9. 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/CH3131311589.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x265556c77687556e4ae416fbacc0cd1f8a8606b048d573d3f7424f3487b652d9. 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/CH3131512168.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd4667ff64cfe7aa132584b4b04d6d66edd1ac013915000920729333ebc12b507. 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/CH3131512170.