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 0xb9d42640d9da896a263c01c97b6d89e39316048a28c5cf6bfb5d9c1af9198ca7. 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/794ceccf-fb57-43a0-b565-68fadd88546d.json and https://artists.proofprofile.net/proofs/artist/794ceccf-fb57-43a0-b565-68fadd88546d.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
UpCycle presents The Garage House (Mixed by DJ Fen & Bassboy)
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 0xd81f1061076b699ea856665d4a1d791772d4833cb5595548ff3c9828037cdc18. 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/GBLFP1785428.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x682c55daed75f46df46a8b73eaecf6fa516cb22aee46d854f87da222f2f3f628. 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/TCACR1612798.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9e5042e0aa893bb575012304f555107c901e19a62899380e1937b8fd744d9fb9. 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/TCACR1612800.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb7b167be3587208f93a3efe644c7b093b4d93f1f51a6b19462641920f0737ff0. 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/TCACR1612802.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8dcd0e19631bc35ceae12c6603051a61f3872478b71bcc78ccd10c921bdcfbf7. 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/TCACR1612803.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xac5ccd2e29154a2d5e8da3b81165edcd1b78ffdecb89d63caf7fe9ada4dbbffd. 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/TCACR1612804.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x01f15c4cb2795a4dd1403f4171dd4cf48d3eb58619e3b2fd5fdffb19d3ceb426. 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/TCACR1612807.
W Wwwwow (feat. Murkz, T Dogg & Turbz (Remix)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf0555d5720d1d1a374aef110e93d15e2a9b9eba83e45e49710d1cb38c9acbf7e. 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/TCACR1612809.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xca3a5cca6dfe4e0aad77247b296fa9268da392ca741f79c2b2d85227dc4c797c. 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/TCACR1612811.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2ab5dc9466463c5af225f00337f55553dfb71403638d3cda2abcaea3080d736a. 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/TCACR1612812.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb0afc88c52d55d1f803f9815e5ec46174ca437f3357a2c965dd56012029a692f. 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/TCACR1612816.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3d86eedd0514bcb5b74c2fe484cbc21d204d06e463c2aad9990b361ae91c7c6a. 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/QM4TX2390959.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaa85b03d226640b309c1fed02d120f92859074a8f24d7000ac08f51544e8787b. 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/CA5KR2273956.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc910dfc642ed208e14842611092bb47ba0d038eb327d3d2f3086f675b9f597f2. 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/QM6P42211876.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x633cb1b86dfb9e0a4b5c5f4d5417328aed3300b03606a9f7b0a5ee2e30d91493. 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/CA5KR0024492.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd7d771399565efa8560312dfc82be4de74b42833f4dc8949492d5f6a209cea62. 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/QMDA72138065.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfd5aad56d245bb68743faabe4207910a85c0aa8d7e2d7dce7cfbe7a5a63ebad0. 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/QM6MZ2121667.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5188d93b99ee7f08dd8fc725350ed75c70d3d252b5869e0d0ad9012fe92b3d96. 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/CA5KR2155795.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x29ae769e648aef215a19e2309ab3f1cd40f12d1d8b15f00b611290bc844b3445. 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/QM4TW2120792.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xadf58ef771514c524c3f3fba3af354fa8b2a251a5899e24a248aada9273b5629. 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/GBDLM2000582.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc96645ffea5ed71db9d26097f0f5336c555db16560a92984b27616d05ceaa546. 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/QMBZ92063383.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9ca2d18f3509d2b6b6d0fca61e4621429054818cb992da4bd93e9a69108b2972. 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/UKXN22024898.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x638592cc3dad532fdec663c832318b1373805a588d336e37202b95f43d1c9fc1. 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/UKXN22061075.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5a83e03d14ef277bfbfb81e64b281a9f99dfcb2e68ef1e2ae68c86757254dd4c. 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/USYBL1901191.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa5614e1bc488c081b4e0b657a1c05a070c833e43e015852c9d62592eb3396d1d. 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/USYBL1901193.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x49df97039a5da73325a1e3945cd04a2237227929e2b820567e624317f9f9c7c3. 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/CA5KR1942546.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x42ed10271aa692d689b8d6af9151bcc870ab9027e5f0f0712123e69b54000def. 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/GBLFP1802326.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x13c94537e39f3eeb65729c7260d181b84c7da65a0cdaf00ea0cec117814466d7. 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/QM6N21783754.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0d219aa4afea1448967fbb2b11fcc7268851500b94ff889d060bd8743edd60dd. 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/FR2X41799413.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf4948fed422301dcdf34b83b45d29b32c9a0210ebc1c60e07167ae3bf8b8af7e. 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/GBLFP1669736.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4c856d743c93b355976eea7ef1ba545ab39e1797774c590675e64ff43a77e509. 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/FRX202552435.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe996b4bc57faace6e3ba30ab1ef256d7ea64a1112e22e2690d0d1aa73fbfb1c6. 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/QMFME2406382.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xca20a577b44a7a10e66a9d1ce0670e6dabf2c7efeb99df47721e00a3f010410e. Chain 2 (Bitcoin): anchored in block 959128 (2026-07-22T14:59:22Z), 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/QMFME2406444.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf739547bbff1e6b59894a00a257b1bd82dafb4df03d43a41ac6731cc973bda6b. 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/QMFME2406401.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe28ba231f2cb11e859677890307584bb30993e6eb75d5a74f96146ffeba69c05. 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/QMFME2406438.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcf64f737275ace0884f31ab6d2bddac648f5e847322f03b0334935feffc663e1. 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/GXH9L2500001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0bd539366899d58b50d5268282241404bc4ea29304b2e834259a64ceb2ced308. 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/QM6MZ2589695.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x96160fa632cced8352fe9454bab825c0074d91fad941df1576f627bd78918084. 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/GXF9Q2537356.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x78836b7f359652b7f9a105f0b4bf2db8a76d839ec9c7aeafcf3ba75eede25c18. 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/QMEZE1949942.