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
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x43d2adfb3ddcf65681ba2c381ed81bab58c5c964c213252ce2bd6c42daf589d0. Chain 2 (Bitcoin): anchored in block 953423 (2026-06-12T21:20:00Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/525600bf-4292-4968-9b0f-cd4c32d40d68.json and https://artists.proofprofile.net/proofs/artist/525600bf-4292-4968-9b0f-cd4c32d40d68.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
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x21dda691870ecab3de34727a0e0dfc2b7457aeb7fab5488463087c82a4a7e52e. 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/FRU636600001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xefd50769738918de88f532170d461dc2f18285da9feea5aec1c74f6de956c63c. 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/FRU636900001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7b30baedc97fda82e099f15eb1e6098e8e1062df1cce76bafdc51c1156f0e0cf. 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/FRU637000001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x56296e835e13484cbec99d42124296a671d3136ffe710efe7d9eb68134110f29. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/FRU637100001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xda30c8cce63e6c4fbc46f1ff6eb3ce84adc31126bf5363f2dabb5bd627f1f4f2. Chain 2 (Bitcoin): anchored in block 957122 (2026-07-08T03:39:04Z), 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/FRU637500005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x17ec1695bf0ed14e2ca8cb89af492ce8b956cfac9806a070c456d5f97279b625. Chain 2 (Bitcoin): anchored in block 960337 (2026-07-31T02:51:48Z), 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/FRU636700001.
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 0xd0b465f46c9655a118473debfbbdbfbf0d8c1ff8fd3e45108054c13f3552b1b3. Chain 2 (Bitcoin): anchored in block 960264 (2026-07-30T14:36:16Z), 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/FRU637000002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8c5e19d6058e65d311fc996e9c025a5b167ff2828e8fb5a22430912750a963cf. Chain 2 (Bitcoin): anchored in block 960418 (2026-07-31T15:20:15Z), 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/FRU636900002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x98c2ba5f96c6c1e1d93f6358b3971a6cad301a20ce287467e08f532b8f6626fa. Chain 2 (Bitcoin): anchored in block 960397 (2026-07-31T12:24:41Z), 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/FRU637200001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaea1919c6a6d7b76f8e8c50a8036f5390f16f321c6b0506338dbb98c0156b35b. Chain 2 (Bitcoin): anchored in block 960144 (2026-07-29T21:09:47Z), 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/FRU636900003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5465317ccef3b99a0cac1ae388da647f21a5f9e6a9a6d422cb89a1f3a6a34792. Chain 2 (Bitcoin): anchored in block 960138 (2026-07-29T19:35:34Z), 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/FRU637500004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x66f9bb64770ab6afdb6592dfade2d7a7560b5d5e5e45b90b70d458d68dec4d4f. Chain 2 (Bitcoin): anchored in block 960435 (2026-07-31T16:33:26Z), 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/FRU637600014.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x66aad1b315cb491e8505f834be193cc65502a6744a6e78917a540a16fdd0244d. Chain 2 (Bitcoin): anchored in block 960368 (2026-07-31T08:26:41Z), 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/FRU637200002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x79dd7ddd5bb3f9b724e495fb40ce6f02448e2b6240f975d0d68bf4e617286262. Chain 2 (Bitcoin): anchored in block 960500 (2026-08-01T03:13:03Z), 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/FRU637600015.
Mr Satisfaction, Vol.1 (2024 Remastered Edition)
Baby I Love You - 2024 Remastered Edition
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb902353853c3261e378c93fd3a51ae277d6f10f62898ef1291389bf4f9494ff0. Chain 2 (Bitcoin): anchored in block 957576 (2026-07-11T14:19:48Z), 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/FRIDO2412000.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1533c2c0e755952c96d93b24b587bf9a01e6e6cf1ad574e9e31ec5b86d7d8ec3. Chain 2 (Bitcoin): anchored in block 956656 (2026-07-04T14:03:39Z), 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/FRIDO2412008.
Picture on the Wall - 2024 Remastered Edition
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe54f83210cf8fcf38967a34f1361f0b5c1baafefc93fdd1d917f1f5e77de42fc. Chain 2 (Bitcoin): anchored in block 958392 (2026-07-17T09:46:31Z), 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/FRIDO2412009.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x72fac0c1fbb70056447a8634a5f477c486b190c012577f1e1dc6380fa176064d. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), 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/FRIDO2412011.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x70c1a6fbe20d72c2d71234996a87dcc6392fa7689aea72f9517038dfd412ca85. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/USHM82361404.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x109dfa53fa6f6c2cfaff563f92cc359a00c62d99fb483629056b3a92ae655720. 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/USHM82361405.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc4d8b9d772b26daa1f67ecb8a97eff3d2c96f310129ae44eecbf85c0324aebfd. 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/USHM82361414.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdb7ebe3943335b4663506913d3c615bd3ec02d22d659e99e419906330e1bd78a. Chain 2 (Bitcoin): anchored in block 960117 (2026-07-29T14:28:24Z), 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/GBAJE0506139.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5c0fc76a8387d0207f1c158034cdc91f06ea03776fa39461486d139ea77b1cae. Chain 2 (Bitcoin): anchored in block 960302 (2026-07-30T20:09:33Z), 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/USHM82361406.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb2b960bcebcad86455f4e3a0775817ceb19e11cfe300c6a954c265955d8e3014. Chain 2 (Bitcoin): anchored in block 960389 (2026-07-31T10:20:10Z), 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/USHM82361413.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x97dae11bb2424d1295a137c45e4c76d72466b750590e547788cea17cf17347bd. Chain 2 (Bitcoin): anchored in block 960348 (2026-07-31T05:17:02Z), 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/USHM82361415.