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 0xbac9c4d178d4b9ecb1581fa2328f0b02ed445aa4ff66f84a45a0ca2d5808891a. 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/740339e5-5923-45f2-a362-16a5533fad44.json and https://artists.proofprofile.net/proofs/artist/740339e5-5923-45f2-a362-16a5533fad44.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 0xdc3c93ec318f33039a129a50481f806a7bc94c76601d2237cb42e275312fac7f. 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/DGA072366990.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd6ef6c81bba9051a79fc9a8fa00ab4d974d36cb097c5ddb0ab85a1da964c06ad. 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/FRX762397607.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5629aeef57a1f7077d26baf35dafc76b5993c13d852c80e3b5ffcf9e2febb56b. 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/FXQ892300021.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x838d086aad6a4d0b3408674abf0795c252eb843fe9fbe6a118677c9f3f308a13. 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/FRX452205074.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7283b8eafb370675fe3774acf3ecdc47f7172f3da8b196075e5af541847e0af4. 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/FXQ892200221.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x54852e4f389ff09a4486bd7763104693604f0533a2170097509c52fb592f005f. 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/FRR642200049.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb63ab137dd2693a8a115dfc4454bf6a0e5a624a29768c48b233b801bd2b978d4. 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/FRR642101377.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4785a445c9db7f24d171370d4f3bf20171a7922c266a4859e3cdf5089853e188. 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/FR26V2056288.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xca0f0877c6f37989413c7bdb0354438f4db0d1f7b7690a4087f68ecca86bb328. Chain 2 (Bitcoin): anchored in block 954130 (2026-06-17T19:07:14Z), 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/FR96X2044654.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x130d2cd11ce740b49009737cbbee5922f832d8ac27084c9dba31e324cdf7a60f. 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/TCAEH1950012.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf188112826059098d4df89c19b467832d1cb16b08414be1e1a353a7e32d8f2bf. Chain 2 (Bitcoin): anchored in block 960258 (2026-07-30T12:45:34Z), 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/TCADH1794499.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2b40f8899bbfa5aaf15b6c68847d08e47b5405efc40db67711bda23da3f9c3db. Chain 2 (Bitcoin): anchored in block 959114 (2026-07-22T08:41:42Z), 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/GBLV61631066.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x96cf768e1960e46130b98b074e9892a184d0294c8102d0542884694c9b5bb019. 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/NLF711601893.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0394226ae2012ddfc3937aa0aa60e4d6aaeef2a3f4505706f0d61ea59accfaec. 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/NLF711601894.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x986987cfaa3c4802fc75f557cc682d06d41fedc307a8aa680a3a13624f07c4e9. 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/NLF711502390.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb71344c54cf88e0fdba7ecf2adba3055538243d7544cd55d86d4dc75ca94d5cf. Chain 2 (Bitcoin): anchored in block 960273 (2026-07-30T15:42:38Z), 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/NLF711502389.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x97b710c3c31ee6eb5e84b1f29c5a305dbc4c1af62341c6e1f14cddd584bebdcf. 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/NLF711501157.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe4fd5c0a01ae306ac4e97f2974bffc9185b419b31b86f4ba3d9130b37e537a66. 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/DGA092368037.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdc3c93ec318f33039a129a50481f806a7bc94c76601d2237cb42e275312fac7f. Chain 2 (Bitcoin): anchored in block 957048 (2026-07-07T14:18:56Z), 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/DGA072366990.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5629aeef57a1f7077d26baf35dafc76b5993c13d852c80e3b5ffcf9e2febb56b. Chain 2 (Bitcoin): anchored in block 956889 (2026-07-06T06:56:49Z), 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/FXQ892300021.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x69381e7f1bb6ff02cdc1f8a5e49c12576071d33a1bd4d5bd77bcde6e7c162a2f. 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/FRX282228589.
Armada Deep House Selection, Vol. 8 (The Finest Deep House Tunes)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0f4772e20f761acbee822765c66ea6edaa7026d3e83fbcb839480ccad44ff1f9. Chain 2 (Bitcoin): anchored in block 956889 (2026-07-06T06:56:49Z), 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/NLF711501158.