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 0x5fe9cc4d317495f3cf168aaddc6552744cedf3b39c6a1af994b43958ebeb0acd. Chain 2 (Bitcoin): anchored in block 953408 (2026-06-12T19:28:13Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/2752519e-172e-4a9c-a9bf-cf22d02462cf.json and https://artists.proofprofile.net/proofs/artist/2752519e-172e-4a9c-a9bf-cf22d02462cf.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 0xf263496fcfd00a70e30c5184de2b4948325e5181edabee58201fd8766eb25c3b. 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/GBGLW2102308.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xab4d0cccab8a1798c4680e0cd91ac70f19fb04266184eb2f0d838029ea20c77b. 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/GBGLW2101557.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcca22ddf2dca881652b2e8f860ef6be31d1ecffdb98dab0c5a8288d32e2a1425. 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/GBGLW2102309.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x70f9e2c6269d20444bce255bf7bd40d39796f89c898d333f069f3b6ca84d93f6. 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/GBGLW2102310.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1b990152bb9c9a2390e7501f243a10a56744d8c9cb5bf2954421297803f475d8. 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/GBGLW2102311.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x79308deacfcff3812900c2eacfe0c2336924165eaad0c142578516249a29b470. 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/GBGLW2102312.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeef1f9c621944fb732cf2f88567e7268a1e7ab4268610db557ccfc9e8f2559e4. 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/GBGLW2102315.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf57239b1b39b79f5a3e79f6e87bbbd262d85d4d5443ee8f66dfc4182344b96a6. Chain 2 (Bitcoin): anchored in block 959128 (2026-07-22T15:27:02Z), 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/GBGLW2102313.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeb0f6de0b725ef01834e180add7a7d5001cad4bf977eee38d0e893ace72f17c7. Chain 2 (Bitcoin): anchored in block 959163 (2026-07-22T21:04:46Z), 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/GBGLW2102314.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1f6de6cc1db75259c8611fd5ca495997587f4b4d439ef4a510b36ae4dcb243d9. 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/GBGLW2000208.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xba96ec294f3f2d1b6ce07828ebaede7152186a088f02ae3403812e3189aaa2cb. 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/GBGLW2000209.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x45ee80fe4c9c20f8960192e00ffc034315b90fabfb99ae51d0842560c50c9617. 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/GBGLW2000210.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x618e61d281164148923d1aafb9fc60033b92277004f3901f7dcb38ad8f22d0f2. 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/GBGLW2000211.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf064e59e64f6a2e4472391177b80a5f6a1b765c4213dd9c0be10f207c15463b2. 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/GBGLW2000212.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb1a755cb3cfe9e92287e4680571140f9abb6ec154a41c43ca82a166cb62da559. 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/GBGLW2000213.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2cdbc44dee5b8c979fd0d6befafe501c1675cf1e551317da71532404107958a9. 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/GBGLW2000214.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x11d1c17203373514ce829c673520f00bbef9d280fbab8d47602e01546669f208. 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/GBGLW2000215.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xca578f3027e2db21d3ce9be46e226486b66d7c761ead6e0755c7aa3fe9ca67f6. 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/GBGLW2000216.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd20ffdbe26af62815b238d239a09e00f312f1b139f7ac460440a5efb8b789731. 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/AUMGB2401349.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x122135bd475487c713687402dfad09b1d7f90a6a388d9e86b909c0818374ad91. 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/GXD7V2400623.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x70f9e2c6269d20444bce255bf7bd40d39796f89c898d333f069f3b6ca84d93f6. 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/GBGLW2102310.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcca22ddf2dca881652b2e8f860ef6be31d1ecffdb98dab0c5a8288d32e2a1425. 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/GBGLW2102309.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xab4d0cccab8a1798c4680e0cd91ac70f19fb04266184eb2f0d838029ea20c77b. 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/GBGLW2101557.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcca22ddf2dca881652b2e8f860ef6be31d1ecffdb98dab0c5a8288d32e2a1425. 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/GBGLW2102309.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf263496fcfd00a70e30c5184de2b4948325e5181edabee58201fd8766eb25c3b. 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/GBGLW2102308.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf263496fcfd00a70e30c5184de2b4948325e5181edabee58201fd8766eb25c3b. 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/GBGLW2102308.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xab4d0cccab8a1798c4680e0cd91ac70f19fb04266184eb2f0d838029ea20c77b. 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/GBGLW2101557.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xba96ec294f3f2d1b6ce07828ebaede7152186a088f02ae3403812e3189aaa2cb. Chain 2 (Bitcoin): anchored in block 957052 (2026-07-07T14:50:41Z), 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/GBGLW2000209.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x45ee80fe4c9c20f8960192e00ffc034315b90fabfb99ae51d0842560c50c9617. 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/GBGLW2000210.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1f6de6cc1db75259c8611fd5ca495997587f4b4d439ef4a510b36ae4dcb243d9. 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/GBGLW2000208.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x45ee80fe4c9c20f8960192e00ffc034315b90fabfb99ae51d0842560c50c9617. 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/GBGLW2000210.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1f6de6cc1db75259c8611fd5ca495997587f4b4d439ef4a510b36ae4dcb243d9. 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/GBGLW2000208.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1f6de6cc1db75259c8611fd5ca495997587f4b4d439ef4a510b36ae4dcb243d9. 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/GBGLW2000208.