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 0x5538f230145d172853128bd8ee103c3b7c8218b85e41a2de92d88a1d02baf8e2. Chain 2 (Bitcoin): anchored in block 953997 (2026-06-16T20:07:57Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/24395e02-b07b-40ab-b71f-665cbeb3fddd.json and https://artists.proofprofile.net/proofs/artist/24395e02-b07b-40ab-b71f-665cbeb3fddd.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 0x620122df907dc16b197105e3f1531948511ad5c66b5f18e5c5b02cb38f35e565. 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/ES7410300071.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x12c772018a3194415b37538b247248572db04e04626c91e87c8f38a340da03e9. 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/ES7410300081.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf2beb07f2921f17e4e88b4918e96223890e8e12b20fe1746d5a30d85ecd0da77. 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/ES7410300072.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x37b0408d2dbca409ecfa52976a2d65f0f4bbe407f1eb36553011919f5cb15874. 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/ES7410300073.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x244add383422033135dc2dc029f91f2491dcfe51ee8aadb21289d8ffffe75c70. 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/ES7410300082.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb773760dfab641b948c49feab07f633e07c0ffdaa6446736b90098ee700fb612. 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/ES7410300055.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x277a9966d21da945684db17412b03f9b49ccba3e8112c276957ac9b6bc861d5c. 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/ES7410300075.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaf60db216828a6b8231c848c3a25056963dd3d702be9dd5e04d9874139de708a. 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/ES7410700106.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9fa26cebda1cc41f3f70dcb6cfda0aab7ffbace53fbbcbb2ec2427830249808c. 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/ES7410300077.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4778a09f6c3262d5246439ac71a82a0f8332b566cfaa960d76e2837854147ae5. 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/ES7410300078.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0df7c9acdac908dc29ccc251ec643fcc077984451e26a5176435eef2280365cb. 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/ES7410700079.
Sound Of South Of Spain, Pt. 1 - Dj Nitro Version
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x25589c97288a091532bf479eb2beb0ea4b9199f3b315d13ed348b39fdcb3536e. Chain 2 (Bitcoin): anchored in block 960481 (2026-07-31T23:51:35Z), 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/ES7410700111.
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
Sound Of South Of Spain, Pt. 2 - Dj Jas Version
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x335c9b2b521ca2141a3453513be64789c999b2a1fb8ec98d6a7c5adf108f6219. Chain 2 (Bitcoin): anchored in block 960264 (2026-07-30T14:36:16Z), 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/ES7410700113.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1595c669e73f5901482de1ffc1378f9b63470cef7cd62befde339a49832bc89a. 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/ES7410700098.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaf60db216828a6b8231c848c3a25056963dd3d702be9dd5e04d9874139de708a. 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/ES7410700106.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xad7b126e54fdc9142b710336cc270187d3750564252e56b6d69e8e0ac431782f. 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/ES7410700123.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x224a66136440d27b1a9ff9d2a1fc46e91431805b3118424aa98e835defd14c20. 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/ES7410200011.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaf7750d48206fef3bd9f2206762312ea021b0d930c95d36b16cd587cb06acefe. Chain 2 (Bitcoin): anchored in block 960121 (2026-07-29T15:22:21Z), 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/ES7410700110.
Break Beat Boom Records - The Compilation, Vol. 1
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x236abd269426db6f1f1a032919967b2648ce83f0325211cdf1f9f4adbc60f758. 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/ES7410700086.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6336bede759efa13429f5d30661903c3b7fe58cebe10eab9455d8c34a2deb191. 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/ES7410700114.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1da8d0d084029a822036302378c202f5eba8ce8e884f268809eec1b53e7f59dd. 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/QM6N21730826.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4793709378f1612ac158b884152f280aff42c697205e585e64041c65cf675c6c. 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/ES7410700085.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaa0ee7ba27966834b6ce46a738560cb2ea8c2c75a95125aa87f057686a15360b. Chain 2 (Bitcoin): anchored in block 957122 (2026-07-08T03:39:04Z), 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/ES7410700121.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1b403a2394a253085220ee8ddefe9a60e8e57df8e11ed4c90e92b563341834eb. 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/ES7410700080.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x12716caacc8d22a51486365ed165afb298c19bd6f67e88438360c36f48c6b86c. 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/ES7410700092.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2a53920bdccffa25b4741da6fa1568a2b0b0be9c1e3c972defe089c5d0e64c37. 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/ES7410700077.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0df7c9acdac908dc29ccc251ec643fcc077984451e26a5176435eef2280365cb. 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/ES7410700079.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x43f580def31d2a633e96191bc9a27fcaac6a7c17da3e263576a0c53b5e653d78. 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/ES7410700083.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7c10740f8afa9a2174995f2857b86e96d35ef130a994370294d45f48ba67e5f0. 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/QM6N21730828.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdddae3b6bcef307c0abd4afee3c6e5355b061e77860e2c605f5e48e8fc3a4afe. 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/ES7410200023.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc28df7147c3d93673c528c6139d98dac826d6ed8183620e5d7917f1c5f5c1d9a. 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/ES7410200024.