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 0x4c29ef86664d3046cbeb6dbe705e58bf18a80f2a994b3ad3e672c67640b4291e. 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/013c5d1c-536f-49c5-bcb2-75ee606f4508.json and https://artists.proofprofile.net/proofs/artist/013c5d1c-536f-49c5-bcb2-75ee606f4508.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 0xd1e6db700beeec6706a0acf3464b4d9884e95f18a71c13a149144b6e3b943393. 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/ARZ310100009.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x01cce515493ff236f427f0951c32ce5185b3f2530bd4e81b4bdebc432cb527f9. Chain 2 (Bitcoin): anchored in block 958180 (2026-07-15T17:59:52Z), 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/ARZ310100013.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcd0fde2b72ae4d2510a44be4f34865608e46e2b5d0ee667604ea3b776019a583. 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/ARZ310100014.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x264b8cd8fa89a2b290a37ec96c072968e70857c8413646fa8cfae7e430bf1059. Chain 2 (Bitcoin): anchored in block 956420 (2026-07-03T00:42:11Z), 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/ARZ310100015.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc49d7d10efb05792e896fc62f27b35875e22c663a88f8f50e4df999c120ef01e. Chain 2 (Bitcoin): anchored in block 958196 (2026-07-15T20:38:50Z), 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/ARZ310100016.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbffc2b5fbfde92b2e1849df997fb5edf667c1475b732c18f6e78cc59a58de9a2. 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/ARZ310100017.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x37af97c3d090ee28767409a1dd00b9b6b9c36e5b80da1be01a0956a42b2c3204. 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/ARZ310100021.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x06640cb8aca38624f049827182f75af432dbd2b6fe383f9ce795481e3064c0b7. 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/ARZ310100022.
She Runaway / Donde Estan Los Poetas / A Veces Me Pregunto Yo
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9ccc1f3e50e1170b14aa4ae17e61a1ad8055e41278b5b4a1f0901a2117795350. 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/ARZ310400005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc8614bb535c0cd48548f4955b85efc6e0872f28a08f6e755127c77b48f2df596. Chain 2 (Bitcoin): anchored in block 958462 (2026-07-17T23:17:53Z), 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/ARZ310400007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x792086f9e1a8c8ccf2146648aa8c807da75774bddd06db71740fa5d434cf762d. 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/ARZ310400011.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf1405f88cfbf9435b7f86127447628d8257bd42871f15a9696d73efcbf2b3312. Chain 2 (Bitcoin): anchored in block 958726 (2026-07-19T11:47:20Z), 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/ARZ310400013.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3ebaa425282d70adea65d2ec97b506408d8aab3029c30603eb8b9e1d8556a036. 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/ARZ310400014.
Si Está Oscureciendo,Me Voy a Ver el Sol
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x57aa45ffc331a0d7a15fade4d199aa26d3abf316f4c20c6afab42fef78620eec. Chain 2 (Bitcoin): anchored in block 958721 (2026-07-19T11:02:33Z), 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/ARZ310400015.
Es Duro Ser una Chica en Cualquier Lugar
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4b86f414c4da32936755a7970aeadb6734b298b29c57eb5a10fc0d44ebe3f257. 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/ARZ310400016.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcf89ab9d99d2455a4a2ab4bfe27f2c4de16b53b7df92e3cd164feedb417734c6. 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/ARZ310400017.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa8d0d1b075aba765698bf2be89bce7fa063fade493d1c6f0320e51e680501836. 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/ARZ310400021.
She Runaway - Donde Estan los Poetas - A Veces Me Pregunto
Acustico Show 09/01/2005 Valparaiso (Bootleg)
The Many Many Moods of... Boom Boom Kid!
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf86ec6c92661e765bfbe0f0635e9daa11fa34bfc6e09ff69cf1f3a16ddb7d0a9. 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/ARZ310500025.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xafa2b17f6f4037509888cb6e4ca5e8975a504352400c6027037663cdeaa33b25. Chain 2 (Bitcoin): anchored in block 958137 (2026-07-15T11:38:26Z), 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/ARZ310700004.
Espontaneos Minutos 2x2 Es 16 Odas Dada Tunes
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6d8bb4093e223c290cca64cdd19bde9d7e1f5cb982e701f4cd02f284484d2814. Chain 2 (Bitcoin): anchored in block 958489 (2026-07-18T04:13:26Z), 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/ARZ310700012.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x00383adbbecf0a394ba9c36ad6ba6f6d997f1c19702bdbc4af211e054d168a5c. 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/ARZ310900001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6b38f0199083a18f57bf9d0fe1c05fbb73755162a58a094d5a20fe6118594c06. 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/ARZ310900002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd93aa345ed5ded5e210643accb471d6324fc854e436f57496458f03c8b1c634e. 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/ARZ310900008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x719d394ef2f67d715349c7bd13543acb81428d27ed05a15af11cf627396f8046. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-19T23:49:37Z), 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/ARZ310900012.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd93926655891f572107d69566ffd6a2ead9399dd35ea9995fca6f2af1486b1a4. Chain 2 (Bitcoin): anchored in block 958520 (2026-07-18T08:19:09Z), 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/ARZ310900021.
Gatiho Preto Maulla 33 Faixas de Pelo Largo
Gatiho Preto Maulla (33 Faixas de pelo Largo)
Espontaneos Minutos de 2x2 Es 16 Odas a Duda Tunes
El Enigmático Mundo de Darío Spiguel... Interpreta Sin Palabras a Boom Boom Kid
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x19cb2a648d126c7dbff305154ea272efac528d9bbc88801d0347d5ccb5c84082. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), 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/ARZ311200007.
Demasiado en Fiestas Sin Timón y Con el Mono al Hombro
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6c6ce503c600db7492d10b07349819b4da7985fbf8d334c4af63e6d93ae9f0a1. 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/ARZ311400006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3f6ee88a993999e1c905f6987732082057dfe2d264df75740037b1e84aa8f69f. Chain 2 (Bitcoin): anchored in block 958196 (2026-07-15T20:38:50Z), 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/ARZ311700017.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4f10d037d5603f271bbaa1fc55b3d2a53b4af84465e8fa408b7bea5952418454. 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/ARZ311700021.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf77c4eaf43a9a81ddf00dcc67df480091c418bd0b4b19ae0bdabe298683c715c. 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/ARZ311180001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaf052642eed4f2f280f6217f35b9cd07a5b9a288b82afe90f380563cc8e5de87. 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/ARZ311180002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8600aa5b89ad48f4e5024ef7f2b308b7073945502ca71974d7871477243d6e46. 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/ARZ311180006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5ea14a5b44164dffecc6667e500824e956021e10fa0e944d185af3d893a3f49f. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), 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/ARZ311180011.
Joaquin Panissi Interpreta a Boom Boom Kid, Vol. 1
Si Me Dejas Decirte Hola!: Desde Finisterre (En Vivo)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x858bd7f3d32503aca9e185ccba9f7686dd385006370f453623cafdd46390ece5. Chain 2 (Bitcoin): anchored in block 956484 (2026-07-03T10:47:44Z), 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/ARZ312000020.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf7861699c1e817c5f43c87e627655ec26aa51dc32c5b58726ed3de32eacea6f0. Chain 2 (Bitcoin): anchored in block 958520 (2026-07-18T08:19:09Z), 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/ARZ312000022.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x52090994d79390315bf85ea1d06e3c467489168effd8c9a2558370a8c8b70d31. Chain 2 (Bitcoin): anchored in block 958180 (2026-07-15T20:03:06Z), 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/ARZ312000030.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x22ee6406c100b8968cf5798ee913eb2744f9627052b5890d3892781ced70f92b. Chain 2 (Bitcoin): anchored in block 957880 (2026-07-13T16:39:18Z), 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/ARZ312000033.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf89253c9e83cabe9cd4081c1d85e81d01b07c9d2f0a057a02dbbfc7a04a99328. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), 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/ARZ312200001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x13c00c709e5ef148c7a74a1354a10f3545033befc7adea0f478f81dce9fa4eae. 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/ARZ312200006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x496e12e2e9ddd42cf5919b03f2b4526996669b2a9db3f16051c41d25596ce67c. 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/USA561463924.