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 0xafa366e9f148d531725f831f585b989b8426cd6971314d2e03160bd839b4d0d9. Chain 2 (Bitcoin): anchored in block 954065 (2026-06-17T08:10:43Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/3a3166d2-0754-4ddc-a149-a16248ac62f4.json and https://artists.proofprofile.net/proofs/artist/3a3166d2-0754-4ddc-a149-a16248ac62f4.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 0xffa678dbd649f6913a45303edadeb3009b6e5700f36f011e80c65062de020747. 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/BRQPP1900011.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x90545d8e72797d859d07c9583e2a89ea68b97b2bfbb0467066db1777e16e0b80. 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/BRQPP1900012.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0fd8dac5df63717792e1a641a7bcd36e3cc435f44839f731cf7e7d077fab4636. 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/BRQPP1900014.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7ff466a05c9320f5b006c68a0d139c37369003ad5ec4b3cf11574a48e5d800ef. 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/BRQPP1900015.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6fedd23bb13b1a53c959fd4dbf547056b7c45c94191866fc0f56cb1083d7e00e. 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/BRQPP1900017.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9e430df7c992c2db588c7eb09eec24a31d6b5d3ff5901321186863e121357f2a. 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/BRQPP1900013.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x91a2e03e9f01bdbe3910cfbdf744e5e11d84af6903a0930881c72e0a3965f17e. Chain 2 (Bitcoin): anchored in block 960344 (2026-07-31T04:14:58Z), 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/BRQPP1900016.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6792efaaf8adeebc4ba586499db067d86e1a3085c8a2c9c28a7b56877d977eb3. Chain 2 (Bitcoin): anchored in block 960334 (2026-07-31T02:19:15Z), 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/BRQPP1900019.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb0274d38bd3aa9957992dd1a658d3ba87f7fc9f63fdf27d886ef1452f157e154. 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/BRQPP1900020.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9f5373ace65f2cdb00edf2413d181b56de2eb20208d18e11da856406bd7252a9. 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/BRQPP1900021.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x54e88c540c2839b884bfea7575bb4696be10cb6268e29ea874d76be10cf95ffa. Chain 2 (Bitcoin): anchored in block 960334 (2026-07-31T02:19:15Z), 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/BRQPP1900022.
Ilessi E Vovô Bebê na Gira Geral (Ao Vivo)
Hidden Waters: Strange and Sublime Sounds of Rio de Janeiro
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x98f4fa4eb85e3a9cdf7ff776b21ed38105bf2d3c3a2ee574339882d466d9ea04. 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/GBCLQ2200725.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcb9fb6431fa1b8eaa8fdaccb68a3a64a9845549d4255025c38acb5ce86e1c11b. 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/GBCLQ2200726.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5fb34224bc82dbd616e2ac09bb080721c8a4c7cf0804f1d13c3e656e667039bb. 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/GBCLQ2200731.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb82accec21aaf3df5cfee013b0985f0c67af5bac75aa3802324562e861956776. 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/GBCLQ2200774.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc98d7a371c22a58dc6c4b0d589df769a0d3e992d2d7de72d50a5dce9f744284b. 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/BXV662400002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa38447982cb18b416f605436c3cd82e3e58ba2b45cc8eb064f6d236db2908408. 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/BXV662400010.
Natal do Miltinho - "A Very Milton Christmas" Vol. 2
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8272bd72ac554b85beecae30d05166641939a9a35bf052fe3b1665d79870adfb. Chain 2 (Bitcoin): anchored in block 956891 (2026-07-06T07:16:32Z), 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/BRQPP2400002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcb7d7a834ee6396067c64f82420812ad1d5987da8ac37b39580870a0cf1281a5. Chain 2 (Bitcoin): anchored in block 956894 (2026-07-06T07:53:57Z), 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/BRQPP2400003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7c49f8401c9f33c7b57d3f88bfe4b6bee3104424b2b95af1a8ef86aec53cf596. Chain 2 (Bitcoin): anchored in block 957011 (2026-07-07T08:25:35Z), 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/BRQPP2400004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1fe84950142beedfada2dd00b4a07341c99f4bfcbe16813a5075cd3c77a325d0. Chain 2 (Bitcoin): anchored in block 957055 (2026-07-07T15:12:44Z), 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/BRQPP2400005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf8ae8e029c845f7ce96f7114fc82fbef95071047a77ac9b46f995e8999a15941. Chain 2 (Bitcoin): anchored in block 956889 (2026-07-06T06:56:49Z), 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/BRQPP2400006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdbd712b7503bcf1be93c599d41a6c9af6309883950ee2992d04efb1cc72bdd63. Chain 2 (Bitcoin): anchored in block 956889 (2026-07-06T06:56:49Z), 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/BRQPP2400007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe6c1ba5ca203dac1f2b9a32015b09aa42cd158efd4ce52265bb4f898c7fc2bd3. 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/BRQPP2400011.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6acbd65b06ff6aab45304e591923305942515f3b12d2a607db8dda5641549da9. 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/BRQPP2400012.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf8396d96e0519c20420d089556ed3a32f6db9388f6d597bef9c9526778dd84fe. 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/BRQPP2400013.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0ddc591d208ceea3902a2f0875f05378e961bcfd90902d49f6f4c468675ee98b. 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/BRQPP2400009.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7c49f8401c9f33c7b57d3f88bfe4b6bee3104424b2b95af1a8ef86aec53cf596. 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/BRQPP2400004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0efbbc6f73557c70108c60a8a3399c9b621169686b9273cf3043de2add9e2784. 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/BRROX1900005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x23c43025bd99dfabf9a16db87abfc29d4b77f8c1af693c12b7b5b9beef9a851e. 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/BRROX1900009.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x20b1ea94da65594f0ac6a8e12f3cba3584e5a73a1d477b6cac6e9c680f5be837. 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/BRROX1900012.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x324e9c41f9d63a2bc913851f107abb13578f0cc7e0c83e6b0a1303ab4016a0d6. 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/BRROX1900014.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x75d30b88e32fa1d60841c17624b25fe3d0d3c452e88ce33af52536f585cffd45. 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/BX75Y2300127.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x81ae7bafa86952206d863f5a8d850bf7fee10db60ec9cf623640d3d347f6a592. 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/BX75Y2300111.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf6febbd6fbc21a8e19d03909f09ab2776c0153ba2e21638c2d0f100e66f04caf. 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/BX75Y2300129.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xba162659a5dd46674d0d4becc3900d56297ffb67234e1534ad3b07f80db58062. 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/BX75Y2300131.