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 0xa891a8772a0eb41e8baa934fdce12d26fb244e8a1ab0ea5d27c36e88b0d09691. 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/ccc1b35b-ba57-443c-ad96-5a7361e15baa.json and https://artists.proofprofile.net/proofs/artist/ccc1b35b-ba57-443c-ad96-5a7361e15baa.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 0xc749a93f107f90e849fde0a70623ff539d5c6e898cce79fc63f1f67397d82670. 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/DESE51700004.
Electronic Saviors; Industrial Music to Cure Cancer, Vol. IV: Retaliation
Finally What You Wanted - Savior's Extended Mix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc07bfad45ee132167a1ecd955ad738ddf8285fc73b6b7984cfc58405bfc38d65. Chain 2 (Bitcoin): anchored in block 957819 (2026-07-21T16:51:32Z), 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/US57M1601504.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5baea42408069763c7475739f26058ff53b021c388993907e15e7a76a06dd121. 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/US57M1601521.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdf9e713af994320b829cbf7fb2eafd31b13ca8dbc524215b6f160d9f29b8e6a4. 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/US57M1601525.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x07c18461fc9e33bc66e1d22c6356589573b00a0abf1fcc5674d5aa7f8d80b1e3. 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/BEC261725001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1a6a425283dad7c8fb5890e9b5125feed4a635e0af25ffd6ea11200ddb0ec892. 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/USHM91622966.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x81484a465c0cf9c6d8307898291d2b054cd16878607d14b4369d12df7f35124f. Chain 2 (Bitcoin): anchored in block 956859 (2026-07-06T01:42:12Z), 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/DESE51600424.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe7e80f0c3abb7c5caee7143958c89220ccf410520ea29848f3d4b11b86f9a240. 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/DEWG81700036.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd4c6013163dfffbb9112c099b8b7c8e3898dd448429442fb7a3c96112758232d. 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/DEWG81700039.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4952a5d1835f2825a2100153a56a192a287b6c68530cfcd934a2a37f239ef52b. 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/DESE51500089.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9ae3a91173c8c8a2eaba2c7e22910c7efda76d16aee9b2c04cd08e84b71bd6da. 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/DESE51500092.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x78d90584f9f3eb5d84a96dd4876b7b8848ff7610988fe3c4cbcaa6354e49f7a4. 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/DESE51600439.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x746baef1033f76ebf5e630d4996179542ec20a9a09c2526bc3cbc72503d0b47e. 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/DESE51500110.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0eeb1183ae63a9ac70206a2e252d015274b2633bfc22e0f9ec243b89888b381d. 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/DEWG81800158.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf75108024e4e7561aeb36b7d35ec3861cbcbd765bea3d47a48b327654a2e54fd. 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/DEWG81800164.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x73323bd5f374e1cb44d2c56dc24cc62b004d9249063eaff0d6f1d1b193277bf6. 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/DESE51600396.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x421e593dc54c29f1b56ae28c3e5254fa7d2f7d9072ffa09c69f5dd96d105aeaa. 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/DESE51600391.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdcc36830e76cdb83bea85e2716d5a5cbf986bbce408614e926666462a1237447. 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/DESE51400230.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3a8d9c75b2bd7ecb9d3f6867d61fea0d4032b200c5d7637db39c0d09f8b7863a. 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/DESE51400234.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7fbd66c4512c96b498a00d067a762b2b28f171e47080945bf21f7ac677d9d9e4. 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/DEWG81900154.
Midnight Crisis - Avarice in Audio Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3cc8583b296f91cb132c4e7f07075663a5a7c0b356e92f0f5bdb276f94af1820. 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/DEWG81900155.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x32501baee5ab0a32803fa6dc5fd0e97a575735958acc6a3aa199656e7125a68c. 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/DESE51600412.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x990dc3660a83bdb3ab8dbe1b0def3b6d670ac98dc666f24784d0a79a5ae36220. 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/DESE51600413.
Into the Night - SynthAttack vs. Antibody
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4ac124a8c1fffee6b165d0dfed4f1549cfb5b222ef8ae6350964b689f8795900. 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/DESE51600414.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0ba4d7b3555e0238ff37a0210b185735343976d6d42df332dca2a517d4a0d0dd. 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/DESE51600415.
Unbreakable - SynthAttack vs. Luca Riese
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe2c1a7a622d585a3adcc010f88e16ce3401a51b4e2c97adfb840058d8a2bd5cd. 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/DESE51600416.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x81484a465c0cf9c6d8307898291d2b054cd16878607d14b4369d12df7f35124f. 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/DESE51600424.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xed91fee79a070901431efc427ebb500c53df142530a9bb6b5b09db1d1c3d50a2. 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/DESE51500314.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x87049b3428b0ce203f2b36dfb2d3b7f98c92036d1e4d377e55c79209bb0ee765. Chain 2 (Bitcoin): anchored in block 959105 (2026-07-22T06:33:30Z), 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/DESE51500315.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x007e77b38d8ad982f66277c0421183a442e2c7880660b8236bd5cf2a3141ae49. 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/GBSMU3597467.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x65c34bc41b9fadee086214a7e6bdf99e9ab7788ce4b083ca1821cbfac2776583. 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/DESE51700124.
Ferrari 550 Maranello (Binary Division Remix)