TNA may refer to: Organisations Tamil National Alliance, a political coalition in Sri Lanka The National Alliance, a political party in Kenya The National Archives (United Kingdom), a UK public bo
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 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
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf92e6150025299198e317dac431990abe361a913c9d3e4a91fa8afee53e2d675. 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/90aa76cc-39ec-4641-a282-646b20e6753e.json and https://artists.proofprofile.net/proofs/artist/90aa76cc-39ec-4641-a282-646b20e6753e.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 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
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x17c3f3c4405fa6f6a905e6b912a20632ccf1e6aad7a8bcc4ec286be174ba0229. 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/GX3Q92098927.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc40658f73dae9ffeae676daccc82c1fde80525fa146b3a34bac07881a7499176. 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/GX3Q92097747.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8a540b47a6c8c0f7df9190437b43edee5d683322ed8d2ec529e4d0f195a427a4. 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/GX3Q92097047.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6e4dffbe6619d033c2f32af2309b2386d107dada2e5305c6c82845dd3fdaf875. 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/GBLFP2041280.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8226a3e11cc698971c823ffcaca7f5a3d613f8627116e66ed3296ad31221beab. 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/GBLFP2041279.
Tekkers Riddim (feat. Harry Shotta & Mr Traumatik)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x334ceb9a0686427eceee8fc85184e5f0a9f9b4ac1c0ab5845909f208781cbec2. 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/UKXN22049358.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x74318de100cc90f4b3e3a824d4e5a65a4407e6d01ab92c436f1f4d0e64dadc74. 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/GBLFP2042658.
R U MAD? (feat. P Money, Little Dee, & Dreps)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x32fe14fc7cb9674b6aea59dbbc7c641721b3a6290d6ddd1e3c1594d344f9e285. 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/UKXN22099053.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeedb7241595826152ae6b0146642a83f09b0f4a05946b6022b62ffe750e4a65a. 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/UKXN22099131.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x11a55ddbb9c418181a9e8c2b076ab84b8b7a7e9b38ca29f26656964c689f3cfa. Chain 2 (Bitcoin): anchored in block 960419 (2026-07-31T15:20:33Z), 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/GBLFP2042657.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfc241e82071ca4f4739149999211ac33c4bda6ed387e05b63d33698f41bef2e6. 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/GBLFP2046485.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfc241e82071ca4f4739149999211ac33c4bda6ed387e05b63d33698f41bef2e6. 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/GBLFP2046485.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4d6d9a6052105f73f74074e344191589b393e2a01f7bbdf3caf4117cc2709c40. 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/GBLFP1948887.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcd470e654d5255fdad517e469d7bd822d1f8899c096c06346cb3b2b0d144ce53. 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/GBLFP1946569.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3cc4824c57da3242a24c14f0ec9aea3e6ef6a8dd115f5c2cdcf2859306be6a68. 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/GBMA21861885.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4ad3caf721713ac9c0172ea1d634ccd29c4d660a61a6e784fce9fbb58b1a4bf3. Chain 2 (Bitcoin): anchored in block 960163 (2026-07-29T23:20:38Z), 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/GBMA21847723.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xda99d083ce530ea21853983f22210bf76e2593a4c86147ba9ce0b0e9dea7c3d0. 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/GX3Q92093232.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6e4dffbe6619d033c2f32af2309b2386d107dada2e5305c6c82845dd3fdaf875. 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/GBLFP2041280.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3eaf2ff3d1177c3da5c9d7bba880c13b9535fb975006ff75cebce1eafe461e6c. 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/GBLFP2041278.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb286baf14b4a9778b82b41bd7ab0bc8feed0f1fbd1e70cb490ad9340db6dd95d. 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/GBLFP2038895.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbfbe62ed9089fcc34d7d5692b314fdac2f05fec973c76eb7c5a8f6e652039f4b. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/GB8KE2203214.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xda99d083ce530ea21853983f22210bf76e2593a4c86147ba9ce0b0e9dea7c3d0. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/GX3Q92093232.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x47932933556a35a881040e5e1213df5b51a9de6b2515526756bce983bccaad6e. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/UKXN22440257.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeedb7241595826152ae6b0146642a83f09b0f4a05946b6022b62ffe750e4a65a. 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/UKXN22099131.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x74318de100cc90f4b3e3a824d4e5a65a4407e6d01ab92c436f1f4d0e64dadc74. 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/GBLFP2042658.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x32fe14fc7cb9674b6aea59dbbc7c641721b3a6290d6ddd1e3c1594d344f9e285. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/UKXN22099053.