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 0x97fd85870c19e9c4df4c1ac1d130cb14c0a30253aba659d947e612eff6ea3af9. 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/d2d818cf-0c51-49f9-a797-78aa06667706.json and https://artists.proofprofile.net/proofs/artist/d2d818cf-0c51-49f9-a797-78aa06667706.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 0x7e66ca0d341b86a29da84a86739e0cdd538c4cec8dc6dbf01a77387230100334. Chain 2 (Bitcoin): anchored in block 958965 (2026-07-21T04:29:05Z), 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/ES71G2149539.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xad8bb0d903adc913188bd36c3d29be39587685c143f4c1859ab52e6f16accdb7. Chain 2 (Bitcoin): anchored in block 958943 (2026-07-21T01:51:03Z), 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/ES71G2145721.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1e71c97ea06424f9389926bcd67ac8084514e029e5f38a306b30fd5b50fd8e67. 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/QM4TW2463543.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeeca8496fccc313115ba6f5ce50bf04ee46e986a15469cee740a1457864ea0fc. Chain 2 (Bitcoin): anchored in block 959024 (2026-07-21T17:35:33Z), 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/QM4TW2463544.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x52d1c05377bb00dc5c97c3ac1b3ee2d3d8b611b3e5424dff39c9fba606bd17eb. 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/QM4TW2463546.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaa0551c34380f6cb8b3d4fc05106d14bb8020b2a53744fa4269716bb4f4a1cbe. 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/QM4TW2463547.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7054c4e1a661facff9093342fba101ab7d500029bce1cee19b4d89b3ba504578. Chain 2 (Bitcoin): anchored in block 959076 (2026-07-21T23:41:40Z), 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/QM4TW2463548.
Lindas Chiquillas / Mala Mujer / Maldito Licor
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa71412189aa2cb2acd7f50e619c8f3b2fd2e3131d5045f3f04e08161a87243cc. Chain 2 (Bitcoin): anchored in block 959023 (2026-07-21T17:20:05Z), 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/ES71G2146101.
Sepulté Mis Ilusiones / Borrachito Pinton / Me Emborracho por Tu Amor
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2aed838b58ebcfab6a73fae60312a1d6cad096ff788092c8e0ddaa32bd4a289e. Chain 2 (Bitcoin): anchored in block 958680 (2026-07-19T06:04:14Z), 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/ES71G2146104.
Esos Ojitos / No Me Caso / Hoy Te Toca Sufrir
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x30fb7489e9fdfa466a36e745d2f57e0e3cb71eec537ff5c1e90d2e2d2340b9aa. Chain 2 (Bitcoin): anchored in block 958444 (2026-07-17T19:12:23Z), 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/ES71G2146106.
Mujer Ingrata / Mañanitas de Sol / Amor de Chiquilla
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9ca25b7b752fcd21dc20de77210879192f71126f0f8e7233e33eb5118ea2a96a. Chain 2 (Bitcoin): anchored in block 958722 (2026-07-19T11:03:50Z), 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/ES71G2146107.
Te Quiero Mi Amor / Así Te Quiero / Novia Mía
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6fccff3fe69bcc88bec1d16fc79b19c5f62f852375739f39ee683560a4de1c74. Chain 2 (Bitcoin): anchored in block 958544 (2026-07-18T12:14:37Z), 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/ES71G2146108.
Clavelito/Ya Se Marchó/Asi Te Quiero Cholita
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x35d86ae702b5e7900e693c43bea45d12713155340225cad112c69b3bc2f9aefc. Chain 2 (Bitcoin): anchored in block 958686 (2026-07-19T06:43:29Z), 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/ES71G2146109.
Los Creadores del Sonido de la Carretera Central
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6e28d89513479cb92f12452c79bda2c1e180748602b6505d7b49c07e42fa12fc. Chain 2 (Bitcoin): anchored in block 956841 (2026-07-05T22:14:35Z), 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/ES71G2144195.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9d1648c575e94fcc6a1f6d9b1ecb38444671c9d0e1f3e140833accc70df43db2. Chain 2 (Bitcoin): anchored in block 958792 (2026-07-19T22:55:52Z), 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/ES71G2145702.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbc4c7e8d81f3776a807330e436e7e30ee64cae7f1a41ce20675c28b42b8c9043. Chain 2 (Bitcoin): anchored in block 956738 (2026-07-05T04:47:21Z), 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/ES71G2145704.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf1cca48bfcaa4f539deb655b738848a343e93cda74e724a13b535fa711b7319f. Chain 2 (Bitcoin): anchored in block 959043 (2026-07-21T21:04:55Z), 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/ES71G2145705.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa8b96ce72d4d65ef1be6171df6b665f01b9e7e4cbceee5b440c730da0e5f8244. Chain 2 (Bitcoin): anchored in block 958060 (2026-07-14T20:39:42Z), 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/ES71G2145707.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdf42faa7a0079bb82ef995fe914c06248e328328d031273a9f6d316b8e3c3189. Chain 2 (Bitcoin): anchored in block 958601 (2026-07-18T19:27:02Z), 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/ES71G2145711.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8f7274ab47b7b0927cd4b1db1a23a962bbfb05fae2643f8fde3d1e120a0a3456. 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/ES71G2145712.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc454417c63ba7401d7fd43d102415b5d59de7c69b5ef70bd86348a54a42b6bea. 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/ES71G2145713.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xad8bb0d903adc913188bd36c3d29be39587685c143f4c1859ab52e6f16accdb7. Chain 2 (Bitcoin): anchored in block 958060 (2026-07-14T20:39:42Z), 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/ES71G2145721.