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 0x813b232d484a35b6ee5e1c6068c5f3680ebca2989489df82b022efd512d5f983. 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/31bc0553-a330-48d5-ae84-f01a728a31c7.json and https://artists.proofprofile.net/proofs/artist/31bc0553-a330-48d5-ae84-f01a728a31c7.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 0x5c485f394fb698f660ad67ecd8dc7dd6d2dd6ebb07bf18b7e8bab5f44f597ff7. Chain 2 (Bitcoin): anchored in block 958783 (2026-07-19T21:20:45Z), 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/GBWUL1951211.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6174e123e546b93cd587014405612377626ddf907b9c47d651526ab920613f4f. 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/ESA011955797.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x30b828ce1ab38315230fa626a1bc41fc3dfe1d495208358f17fc8284fe054098. 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/ESA011955799.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x41c7957270eca7715c9f8f62ff80ae44b38eb1ee2c47e64a6aa1705aaff84f5a. Chain 2 (Bitcoin): anchored in block 958256 (2026-07-16T07:22:18Z), 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/ESA012011743.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x47145a13e69cf82eb7df9441704cc39571bc6b313be002694467f8f035bdb7c4. Chain 2 (Bitcoin): anchored in block 958335 (2026-07-16T22:37:47Z), 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/USHM91132636.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x82fc54ebdb9856caacb919d5c921221a06753a297493fc5f3009badd072f865d. Chain 2 (Bitcoin): anchored in block 958670 (2026-07-19T05:26:23Z), 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/USHM91132639.
Sin Tiempo (feat. Charlie Mariano, Markus Stockhausen, Mike Herting, Michael Küttner)
Colección Clásicos de la Música Vallenata
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xee2e9882ea996975f095367f2177ff8fa8a38c4bc70ad8b6ccd2534fa5775b70. 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/ESA011955786.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x97421bc6c0938493ddb3d9120204396cfbb6cab4c123cfa63b916387114aeb2c. Chain 2 (Bitcoin): anchored in block 956728 (2026-07-05T01:43:49Z), 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/ESA011955800.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb372d72d417409ca1553e168b12c2df8d8a03352b62c91054985aeb3b18a2b74. Chain 2 (Bitcoin): anchored in block 956551 (2026-07-03T21:18:05Z), 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/ESA011955785.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfed6af017cec63fe4efc9337435ca303fe54e0961329ca822b23e2a286ad6ab3. Chain 2 (Bitcoin): anchored in block 958197 (2026-07-15T23:37:57Z), 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/ESA011955787.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8caf3de786b670b94d64689ed420caf7870991ef8666ff9167f1ac3c3740282c. Chain 2 (Bitcoin): anchored in block 956776 (2026-07-05T10:59:37Z), 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/ESA011955789.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xef049cf5f9f85ae0949eb52c5aa99550189c0c322cccc1859948ca71230d2243. Chain 2 (Bitcoin): anchored in block 958300 (2026-07-16T16:14:30Z), 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/ESA011955790.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeef80bada1183594528f3c2ca006cc96a355d76bd35d20199a7e5c9f8c4e5f15. Chain 2 (Bitcoin): anchored in block 956857 (2026-07-06T01:26:17Z), 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/ESA011955791.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe823ad47caa80e64fb488b9c10721afbd59b03a38fbbb161fe4ce9e305ba2729. Chain 2 (Bitcoin): anchored in block 957899 (2026-07-13T19:36:39Z), 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/ESA011955793.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2289b5ba74b79197b19b0e7ecadf5228f3f794604325f38a4549a629415b3eae. Chain 2 (Bitcoin): anchored in block 958776 (2026-07-19T20:11:59Z), 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/ESA011846623.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x89129c8fc3014d413ee5e6e149354633bb29056e1dd246849c02d2501a8ccadb. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), 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/ESA011846624.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x07c0153874c0d36bf9ba15635d166b81abd64cecd0ebf59d5ba79a4913c62efd. Chain 2 (Bitcoin): anchored in block 958752 (2026-07-19T18:51:56Z), 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/ESA011846627.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2e32905fe6530ef318a58f04caef40a5ebe5a2b5a441a080b54a99f26a755f86. Chain 2 (Bitcoin): anchored in block 958576 (2026-07-18T16:22:28Z), 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/ESA011846628.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9f6b35b284519f11a715f0d1bbd727fdd4f40a676cd8df76d23c10c12492053e. Chain 2 (Bitcoin): anchored in block 956790 (2026-07-05T12:31:54Z), 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/ESA012011740.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa64b572f689acab74bfbbbb1ff007a45e8161c4e7ecefabe73f0f2f5825217dd. Chain 2 (Bitcoin): anchored in block 958384 (2026-07-17T08:27:02Z), 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/ESA012011741.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2b74425f217cb168ec204214d216156502074cc44edac6b52dd710795385b8cb. Chain 2 (Bitcoin): anchored in block 956639 (2026-07-04T11:19:20Z), 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/ESA012011744.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe4a1bc8d701fbcc9d5a449a7065480fe1541daa8bdb04771d9922743a7878b84. Chain 2 (Bitcoin): anchored in block 958901 (2026-07-20T17:27:28Z), 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/ESA012011746.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x15b8ba1284d211ec5e58c132dcc65eb027502487464fe545b5344538c8ecf3d2. Chain 2 (Bitcoin): anchored in block 956856 (2026-07-06T01:25:57Z), 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/ESA012011748.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x60cd01821098a9836917827f25117d2ae470120a3af05f911202b68369c55afe. 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/ESA012011749.
Fragmentos Em Off De "Os Ombros Suportam O Mundo" - Ao Vivo
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x43477a67d6c32380d015c52a81f17b4cc56ec314e7690e7b3a43d86a36863c7f. 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/BRMCA0000608.
Texto Em Off De Fernanda Young - Ao Vivo
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x232e4b21986d7f13026fe2595e3884cf08167dd8e6708208234ae55d5892cad5. 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/BRMCA0000607.
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