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 0xabd05a6d11fec36a00700481383edafb5c5009d59df52e5069b8278dae026f6a. 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/0ff07571-9bc5-4a13-9c4e-b7ce519795fa.json and https://artists.proofprofile.net/proofs/artist/0ff07571-9bc5-4a13-9c4e-b7ce519795fa.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 0xe21eccda39a9bc7ad844e143772d071daa46b9eb9967734478afd66461f9a7af. 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/QZTGW2401731.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8a741acd5d287b3af6dcf60fff0cf621bc8eeacb57f8a8ce9304932131f2a577. 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/QZTGW2400234.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x99acc665da97740632138091c33f339df3e9796a9d0fb8448438cfd093a19ba5. 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/CH3132419184.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1c3060dddaf71803c6272525b00f6a582fe26ac729b48cb178d306b56c1a1eda. 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/CH3132419182.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd659d2c4aaa2a6d654dee75565855ccba4e8a6d28294f26ac715466495e0d9b8. 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/CH3132319053.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6cb9182aabaae6ec2a201bd56870f4df15d652a11d28e28e5b3f4a0acefecaef. 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/CH3132319055.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x74e97a5ff6cab1f50f35d9914d9f7172c70e8f17a9f2fdbe2d6a7bce04c3802e. 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/CH3132319054.
I Have Places in High Friends (Return Of The Jaded Remix)
I Have Places in High Friends - Return Of The Jaded Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x23995b00dab21ddb18ff6ca37409a1d6acac7db58fe195a64a49d5b478bb61d2. 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/CA5KR2479049.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x52dd40f21f74b2dfc68bf41e4c54f38eb962293e7ea7fa5f9ab4a45949f9c3b0. 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/GBK6Y2452181.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x51df173674902fb4e454c62b265647d072faa9232888edcc9777c31fca58c386. 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/QMPLY2400034.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x353df3c1617772cbb8beb3a61d488cefeb55a77ec8ab704ded17b09820c98555. 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/CA5KR2422188.
Rave Inside My Head - Original Radio Edit
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3eb092aa5b90b3fd4f158cf98d8eeec480f77a1c0d1eddd79d21ef8d8952f5b1. 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/CA5KR2404684.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0aca280961d64ce355e81ce04ae79f8e9cebc50e21064d84c0c874b5219e9c64. 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/GBKQU2393819.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x61109c8af3770c60cbf19d4f634f556e079d7c53815cb80c92760d0d0bae8d66. 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/CA5KR2354774.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x174d2829d8591d4c06b3be385ca9412263e88f701104ddfcc12c2d5b2e4054a2. 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/GBK6Y2205111.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x196f201f066f4ce3e9685bd2a5ae42f673bb2945597608af064cbce502eedc85. 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/CA5KR2340039.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5e6932d48a85f44b9c492325dfc90e3c0a580dd90451a0440209d0cec2c9e48f. 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/CH3132217433.
Got What U Need (feat. MELLY OHH) [Extended Mix]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa3e16babcd82487a2fa9a41d00bcb457ab3951e9128c03e577b4ed6f5e8f7c2a. 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/NLZ542300264.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe94621b78ba07a8121a52b38f1ed7a66015f52a381310ac2a393c8fb80b9bc32. 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/GBK6Y2107631.
Run It Back (feat. Kid Enigma) [Extended Mix]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa89bec0d2e57e117847f5adbb2bdc57389182058c2c5b0a8f0bc55332cb55493. 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/NLZ542201951.
Trouble So Hard (feat. MELLY OHH) [Extended Mix]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb55ead2392e3f762777b97eb93bf5e8b3ea494a189506cd82484e5c4ce390507. 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/NLZ542200723.
I Still Think of You (Return of the Jaded Remix)
I Still Think of You - Return of the Jaded Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x457d9959a17e4f265a7fe412b59d84cfa5a3f92afa0489115df56c821f87a15b. 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/CH3132216567.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0a702f8f61341143d54b01627c1f162b7d5d77623be933bd6a86b595611bb556. 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/NLZ542101986.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x619e667b2ae812e46d45cdd7a8e80fdfdf3e582a43dc80325cc89277f84f6085. 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/CH3132116208.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xead0129da152960988191d152fee38936ef3d2f7484f3271349078b1a4f33606. 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/CH3132116209.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x704a633767814365dcd3d0625294de5ad3fc8c204bda956ee852ce551b1241bd. 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/NLZ542101581.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe161f83dee6274a9dbe0938b8fb78d676434167b466dafe9225de0d949b67f01. 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/NLZ542101454.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb1e4deffa02f88d75162e16c667b5888a34400166e54e5cf6b6b2de8b5e50c20. 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/FRX452115158.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe6b1959af622498785ddbf89618864f29a9bacd6c46b3f39f31795ff44806bd0. 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/AUXN22138865.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1c2b8a33bf14a9081bdee78dc49d42e54d2ef804244dfe9616a496dc63100917. 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/AUXN22090376.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x237dc017c5f1f9b48e9489b21b0c139578952c990cb6152f7cc521efffa9eca9. 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/NLZ542001738.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdd2542e3ebb026de98bcf3bdae08555db8bc2075a8d821aeb46243b02277f29b. 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/QMPLY2000011.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4fe1c57a3e7e06ff3231d3a0a34e463ba746115c154532bbd6c735a0a5fa56dc. 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/QMPLY2000013.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x77ea7d6b79a16456df1d38167aa9a01c9d24ab680d943de11686fa4720e86fa7. 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/USCEI1215201.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x18ecc9db54d06b459c8b10861c87579d77c825abcbf8e0e48b946a4f5a29a850. Chain 2 (Bitcoin): anchored in block 959155 (2026-07-22T19:11:27Z), 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/USCEI1215202.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2382e7fee75c921a384c0a007527318b63c7f79837b7c8458e03da21d43ae2d3. 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/GBTDG1302472.