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 0x0e38cfeb1df90ff8980ae4c03019f2380fcd00ece11ad576f73cfbffbc650e9c. Chain 2 (Bitcoin): anchored in block 953648 (2026-06-14T15:20:52Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/38444d87-bee9-49b7-84b3-c0db2b98f89b.json and https://artists.proofprofile.net/proofs/artist/38444d87-bee9-49b7-84b3-c0db2b98f89b.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 0xebd8a804457982745c521683f57db80dcbda42856e8cc33eaa92c77de02835b9. 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/GBK6Y2251151.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb20355139ce0a89a02798b0ba126706aa173e13f14ccc2a86241fc2a5d3de8f7. 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/GBKQU2336199.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf4763d9b3790288fbeb565b789122d4ef90b46da76f47c00c7f431b12ca0af08. 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/GBKQU2462487.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf4763d9b3790288fbeb565b789122d4ef90b46da76f47c00c7f431b12ca0af08. 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/GBKQU2462487.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7914972f686c9f7da955b057fbf69014a8014d8e40cf4003014847d06377bd57. 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/GBKQU2462488.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x27d7dfdf9e00481c2e474e5e80fab4db069ef96154f73fdb4f5493672c836583. Chain 2 (Bitcoin): anchored in block 957820 (2026-07-13T07:54:01Z), 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/GB9UU2400027.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8646e3a6903ac80ce0816224b9417eee1dc69da931dadacd3d41e56dd559c45b. 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/GBLV62129933.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8bacee7cd1a5b4f500e535eb682cea55116ee09088c46a4aadc004ee362e86d7. 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/GBLV62129934.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x15806f5fa05d55b2e365e01b0184718dcf44485bce88296bd861e2d9f929030d. 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/ES94G2425507.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb2081f360f0be4fb3ff2eda0cee4aeaf4129a4648aadd882d451a8b8f93d3f80. Chain 2 (Bitcoin): anchored in block 957073 (2026-07-07T18:39:05Z), 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/ES94G2425508.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcffab7a9fa67d83a83b1458e1c3f757940a7d8ed79898b3259a99334f83f94ed. 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/ES94G2425509.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x44c6c51f87a688d66dc93c381dab5f84f5ed12df8164f7d7a779f35dc5abda4f. 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/ES94G2425510.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa47903cd91258009285b326b36ba33b00b8163718b58540cfa90993529dd3a87. 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/ES94G2425511.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xea6b7b36fdf7fc2c88ec1f474b7a78ae9996f0315536e4276c313dbb3d0426f1. 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/ES94G2425512.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbf7c3b8a63089c3f7df7c20b4d1c156a131980fe8032fae01aa978a6e4031bc1. 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/QZG2X2407494.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3b4ae6b56cfa4f0762d0b01992f80a9ecc51f9322d83c8ba1cfae1f8ec7b72a2. 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/QZG2X2407495.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3488da3c951538aa73f6d14dab1ae03f6bfb0f985f4282d759b41930de7374d4. 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/GBKQU2453626.
Toolroom Radio EP628 - Presented by Mark Knight
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8646e3a6903ac80ce0816224b9417eee1dc69da931dadacd3d41e56dd559c45b. 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/GBLV62129933.
Best of Snatch! 2018 (Mixed By Soul Speech)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb333426cad0529b2b6172dd54947a4a0f454604a379f5544ad86d632ff2bc014. 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/GBKQU2488637.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xde00e420be4d11272b9b285f1ef4c987d90e39b528534e0c9cef0cb9756adce2. 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/GBKQU2258756.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x723ef938f63f5fa032f2d5192221a2453acacbaf74c93d3aead2850ed1c39e44. 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/GBJX32121014.
Safe Amsterdam 2024 (Selected by The Deepshakerz)