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 0x88ae2aeffce49c718a6e2abf21bc21491475a25c0761653d1d604dc740a2a5d7. Chain 2 (Bitcoin): anchored in block 954131 (2026-06-17T19:19:19Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/7b8689b2-85ea-4e38-939e-2c6a34618746.json and https://artists.proofprofile.net/proofs/artist/7b8689b2-85ea-4e38-939e-2c6a34618746.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 0xbc3fc1aef866df2c3d6aa20d5f3601930fc4661b308d2c15c8ad8961e4bfc330. 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/GBKQU2077546.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4a158f81a4a88fe8fa7082249208cf0a776dcb4761e13587cae7daa1d9eb7d7e. 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/GBKQU2077549.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdad1a16ede4a11c2fc16d3560b57ef3a80ca87b2c40cff2892a0d8ac7b725185. Chain 2 (Bitcoin): anchored in block 960473 (2026-07-31T22:27:44Z), 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/GBKQU2077547.
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 0x863ef41b7fbb7702179b8ac251ddbd4db96531221506af8a5e2be3ee8d526146. 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/USCGH1702235.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5b0a036e5abfcc27acd3b206c7c3d79634d26bd810034cdc9ce499d7b051cd6d. 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/USCGH1702248.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x354759e929f077b2c73ea1f438c07cda133527b9a60e308aca638e8565afa642. 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/TR0680700033.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb6091deb8a718c1c3e387bf1b69e70166c566259636dc1068924e688619e3318. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/TR0680700054.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8721bca7114dc1bb06e89145789d4ac32e3d4ccc0568b7759ad1f449e362d7c8. 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/TR0680700055.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8c22021897fd77b1d3b7b379789b62af0c9d82991a58537f497309249462bd1a. 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/TR0680700056.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x63ecd53f8312c7e64137a1ca323bda6b402b1da7538df282d4610da02c063ab4. Chain 2 (Bitcoin): anchored in block 956351 (2026-07-02T11:38:34Z), 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/TR0680700057.
Gam Tozu Ve Dünyanın Ninnisi - Enstrumantal
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x36ae45bf7b998a8754738005848d865755e251baf2e0a984dac0a32cc87775b6. 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/TR0680700058.
Bağlı Hayatım Pamuk İpliğine - Enstrumantal
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf4855fe2dea5e084610b62fd38076236bc0f0e5b26856e43b6a1d60b6d51bf62. 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/TR0680700059.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x87f5ac2f5224e6fa8d53dd7ae4666b49880aeb4660f47b3becc0f3ac4f99529b. Chain 2 (Bitcoin): anchored in block 956351 (2026-07-02T11:38:34Z), 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/TR0680700060.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb39782ce3bbc487441dfdfdd0155fbf7e729f719eaca729d2f687717e8d29248. 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/TR0680700061.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf511eef37c1211a025b16f8edad0fbb8f3fde351c809c2f0ffcf60773329becd. 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/TR0680700063.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd67ccdeb3c73785b1546244d1b58192f3581a6d95b039c1e78f7795a555f0797. Chain 2 (Bitcoin): anchored in block 956351 (2026-07-02T11:38:34Z), 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/TR0680700064.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8c31883503755685e2ad282570619703f39e34f801004fa4b60c8ab5ca0c4aef. Chain 2 (Bitcoin): anchored in block 956351 (2026-07-02T11:38:34Z), 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/TR0680700065.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x73dbe034663bfc801e904475dee4320ba8a7b4854cd25b79260a341737e05510. Chain 2 (Bitcoin): anchored in block 956351 (2026-07-02T11:38:34Z), 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/TR0680700066.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc7573edec03332afd44b1c6e55868a9d5a335f6fde7767d3cb8fe0612eaa544d. 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/TR0680700067.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x94de2ef0e1eef1adf4033e9f92af156a99c5ac98cd308ed1d3c32431b7c39b73. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/TR0680700068.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x91432aaba433a781ded46d0523187c31d7ba3ef1122721eb383289616fe30839. Chain 2 (Bitcoin): anchored in block 956351 (2026-07-02T11:38:34Z), 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/TR0680700069.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x097643403bb84b1fcf2cadd32eb122fb602f1985a22b0d3a6d3bff0382652bc6. 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/FIEVG0300036.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9781a7cb1906c4d0c0fe0faaa156cc19211a647da627ebe30a590f47d3d5e6df. 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/FIEVG0300037.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa978fce029004f15c96b2248b7c93eac2f240b6be9e0d1b776d01919c2e4da69. Chain 2 (Bitcoin): anchored in block 957061 (2026-07-07T16:07:00Z), 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/FIEVG0300038.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc6f8a985fd9b9eb1a014bfa413804874a8e0d4adc489b2e924e49584afeba312. 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/FIEVG0300041.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe6401344b8931f29111ab294c9293d1d92ec1ae3be0b77c3345617cb7852e523. 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/FIEVG0300043.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1f32dabeb606abc7a82840157d515e057bf5064fe60fa50c27aac2818c945061. 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/FIEVG0300044.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x147b2d8fa31c5ec5dedd698006650df44a174ac4b278ad4a039f6db1e7d85554. 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/USA2P2408257.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xce44031bfe1c5080f2ceead794edafcc9e16b826a0420e68cd4b772d70c2a429. 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/USA2P2408258.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe20ee566573e8b0d61f3acd6136f404b21201551210a996855e1d526c2a0c0a8. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/USA2P2408259.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4ae14034612d2136f3f6362588c5f99f61eddffe31b20eb0cbcbfaac9ad5e9f7. 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/GBKQU1935459.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcd5e323ebaac7eeacc8afd1d1e04a2ac78951e234cde8817bba97dc061349d2d. 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/GBKQU1935457.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdbe15338137ad0cf0b314c13d2a4695bbc534eb6eca8ffc6faad07538890d158. 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/USWR38500571.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc6089f5f0654bebe6a266d89e4494c6d53cf558b4456b73d8db84b5f351c6301. 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/USWR38500574.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2a5d49415822d1bac7eff367b85a893f1a97816203b6c1e96ff4ec878a1fe596. 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/USWR38500579.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xae2ba410f80259141e640f88d2ea7baa813a1d2fbe8cdd7977fd1fe67d79ceb9. 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/CA5KR1000772.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xea57276f1aad20ea61b2ee5af320f34286de5459745125dd4f9a999b211c227c. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/US3DF1212155.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa8e17d76a6f7c82299eded2042a4e1b772a6c0cebe84c3d9c64298113a06686c. 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/US3DF1212158.