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 0xb7fafc68fdb72f9893932617d098ea8cdf3eb94382151871366e9627cfdfe4f2. Chain 2 (Bitcoin): anchored in block 953408 (2026-06-12T19:28:13Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/a9244f96-e057-4fa8-beda-aac1c9fc223c.json and https://artists.proofprofile.net/proofs/artist/a9244f96-e057-4fa8-beda-aac1c9fc223c.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 0xa54237e7c18049bd02bcf4daf502882e9edbe06088d0ac935c91291cdb8e008f. Chain 2 (Bitcoin): anchored in block 956822 (2026-07-05T18:48:28Z), 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/CACWV2071220.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x100c186dd74da269e3a18cd53aef1ad779622c15107b027c645037b98266d195. Chain 2 (Bitcoin): anchored in block 958842 (2026-07-20T09:57:47Z), 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/IL6652002149.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x168700c61d4809df0d766954183c4430c0f197a262896ce6af6f1d35f7c7402a. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), 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/IL6652002146.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7b54838bc7e6a9e7b33d1216d270b273e1ad343eedab5881df34942ab718d306. Chain 2 (Bitcoin): anchored in block 958631 (2026-07-19T00:50:09Z), 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/IL6652002148.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdc05bd1e92f38815f0c2b0b093371eb23c76dedad4cda5a0714278f33e1ab335. 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/IL6652002254.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfece6c8bc1269c964deabaf1e864a175842dc7f1775f5e5212593c7341b36ed7. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/IL6652102493.
Beautiful Catastrophe - Instrumental Version
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd42ea2536c5ae778e0f48e59f03096200f66e022cf48c152641d9f534071efe9. Chain 2 (Bitcoin): anchored in block 957838 (2026-07-13T10:04:52Z), 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/IL6652102496.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf59c8c657e0521e7613793594a60edf6e8d99c56f1bf01aed3ec0b74bc8d9cad. Chain 2 (Bitcoin): anchored in block 958196 (2026-07-15T21:47:13Z), 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/IL6652102565.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8d3244cfe7785a98abdc7b60f249164534fc01d5ae5da80368e6222da46a556f. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/IL6652102746.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcdd074426cdc79e184ac1fa92e0a90d9a6c174f856ebf29f6b21460071a0406a. Chain 2 (Bitcoin): anchored in block 958690 (2026-07-19T07:14:39Z), 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/IL6652102948.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x07503d9a90f3ef8dabb0641094224f034f46d87a11f1d3a85a9cddc506339621. Chain 2 (Bitcoin): anchored in block 956474 (2026-07-03T08:56:35Z), 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/IL6652103469.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xadd6e817d87339d318ed392e8763e1f90284ff1478e83b93e688450dd1c3d5b4. Chain 2 (Bitcoin): anchored in block 956476 (2026-07-03T09:04:44Z), 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/IL6652204000.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0fdcba56cb8f6e10da28aa7995eacbfa9d4633ad9bed62af8d3355e639b4d1b1. Chain 2 (Bitcoin): anchored in block 959002 (2026-07-21T14:01:24Z), 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/IL6652203998.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xadfa48309c1bb7b7bc301999a5b3e3820eeb8de05e2cd5c5c6aa61b5c6df88a8. Chain 2 (Bitcoin): anchored in block 958316 (2026-07-16T19:42:29Z), 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/IL6652204001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7f03c5e6fc4e2a6890b07c383712d8e279b018df3d80a6999c33a78ddd07b4fa. Chain 2 (Bitcoin): anchored in block 958180 (2026-07-15T20:07:15Z), 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/IL6652203995.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x232410af92e329d3fc2861384560a812304ac6df9158d6c29d2782577f9e2ec5. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), 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/QZES82388890.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeef23cbdc6d967ef6ac9f997aa30796ee800114c2eab5499707e059410976b34. Chain 2 (Bitcoin): anchored in block 958430 (2026-07-17T15:33:28Z), 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/IL6652306333.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbc4865187a90eaf49b99423c52a1daec5efc9292a8beef90d5a9273e14e9e718. Chain 2 (Bitcoin): anchored in block 956560 (2026-07-03T23:28:02Z), 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/IL6652306335.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9e74dc226a14993d1aa161de4d83cd95c7a2acfb05c1c82b9661cc6c73bb7a6b. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/IL6652306182.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xafd31d95a49fb8f6121d60e4d11e352cda7c4d44ec19174d96f498c116c3b47c. Chain 2 (Bitcoin): anchored in block 958733 (2026-07-19T12:51:21Z), 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/IL6652410714.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x665c9614ab688910b89627dcbbd318d0f69d8172b37b933505dc0fe65bb55437. Chain 2 (Bitcoin): anchored in block 958234 (2026-07-16T03:46:09Z), 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/IL6652410712.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd4dc7f976b5eaf4d7dd9b7d4ae6b5a6da03f21d32c66af3d14f716b2c7e5978d. Chain 2 (Bitcoin): anchored in block 956474 (2026-07-03T08:56:35Z), 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/IL6652410100.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x90f885dc843d0238577df9b52ed86523d3d909b3fc4a88b690b3eba2c2a0a213. Chain 2 (Bitcoin): anchored in block 958832 (2026-07-20T08:22:52Z), 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/IL6652410104.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb5d262de5e1e88d45a0c061866e2eaa22e2c07ef043350a40b04d09cc78df955. Chain 2 (Bitcoin): anchored in block 956482 (2026-07-03T10:33:57Z), 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/IL6652410705.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3f3e7a2e75c19b204fa755b87fe62a720aeb8f71ef390019ef950ac83af6b44e. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), 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/IL6652411357.
Speedlist - Artlist Slowed & Reverb Songs Vol. 1
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb1e9a6e6ddaa5520ee75443c9a5a3ff4edd9c9afcea53566d50e89e7821f74fc. 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/IL6652306714.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8dc80dffa5617fd2c51a358678bdc173076a4cf9ece5c716ec2d1714300b612b. 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/IL6652306735.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc6ccfd1428bcfa659474ae3a0644cec9b7b04d2dff6b840ddf1de1d8b7a69641. 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/USUYG1416631.