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 0x39bce5e67f76d66f07be0f9d6e320c1a775605e40af0aa680c21fa5017b7a1ab. 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/b03f6010-f42e-4513-a9fe-14789a3413b5.json and https://artists.proofprofile.net/proofs/artist/b03f6010-f42e-4513-a9fe-14789a3413b5.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 0x7b010538096469325c4aa54a65c2f9a34f9fda89ba5d2b1c9462acf57cb39fdd. Chain 2 (Bitcoin): anchored in block 958197 (2026-07-15T23:35:28Z), 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/ES75A0800014.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe60e9a99a075e4a187b1a9daa05ab3acf914048af0fd20792dd1431e20fa3f15. 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/ES75A0800020.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe75187212eb2264947b556f708f71ea5c7f68e97445ce5c07871031075e3988d. 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/ES7051100014.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe3d57484439cb0e19c799e3fc94dd17ef387b25303d6c06b0bb5ef9b56d5e9bd. 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/ES7051100024.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7fadb52c65caa075f51880afa9c8e46265cc3f23798228dd9dd38c36952dd1e8. 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/ES5151302437.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x234b625e16ee8b39d898955833ec9eec3dc8b9c38d3c318787dc0afba49e0e82. Chain 2 (Bitcoin): anchored in block 958792 (2026-07-20T01:44:15Z), 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/ES5151400130.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdd06f16417a6c767692d82de880d5f4d370e66330a5e42e303dcff0bff30794a. Chain 2 (Bitcoin): anchored in block 958975 (2026-07-21T08:37:31Z), 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/ES5151400131.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb990866b9375ad45458a0a0d9e7c26acde1443f56b29714773e4b681dd575301. 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/ES5151400132.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x38eea8accea9937231c19ecaaebce7055155c81a195badec45245a42f6a5b1e2. 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/ES5151400134.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd4f56ebdec8f8d3911823ec709ce939d744ae5c5f7dd387c1dd82c1c3552804f. Chain 2 (Bitcoin): anchored in block 958541 (2026-07-18T11:37:54Z), 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/ES5151400137.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9870712b2468cf3c3137408d37f59263240a94fb3b443524376b07634b03e783. Chain 2 (Bitcoin): anchored in block 958798 (2026-07-20T02:07:05Z), 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/ES5151400138.
Flor de Primavera (feat. Marlon - 2021 Version)
Ochenta y cuatro conciertos en la parte de atrás
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf7a582df29263cf0d3fc242cfb2172fc6a796ae42d8622adad2fbe4823a144a6. Chain 2 (Bitcoin): anchored in block 958696 (2026-07-19T07:45:31Z), 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/ES94B2100096.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1e4cd1891a01b2266475e0cb9f0cbf9554006252ff3e9d8ea512a89ca984a46d. Chain 2 (Bitcoin): anchored in block 958700 (2026-07-19T08:09:50Z), 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/ES94B2100097.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb5fa9eb2986c06b69e2e2edbaff46d5fc77317b418660c09688951e2a6fc5f57. Chain 2 (Bitcoin): anchored in block 958271 (2026-07-16T11:30:43Z), 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/ES94B2100098.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x97b19225166972fde6880d2912cc98606a726bbf7c44129a44c15c5426960b1a. Chain 2 (Bitcoin): anchored in block 958316 (2026-07-17T00:06:36Z), 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/ES94B2100100.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x92c7e254df44d7cd3e3a77e5e46c0659561e553d48a151f122573e1dc3093bc2. 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/ES94B2100101.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x89b7a244794fde99a61937c22e2cd4e45795d9f142d6c0a0e3223c186b345265. Chain 2 (Bitcoin): anchored in block 958340 (2026-07-17T02:09:04Z), 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/ES94B2100094.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc1afb8499dfafada0630bbc53aa0f509546011d9bb4c05ba1e03d16aff6964f2. 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/ES94B2100102.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x983a0af0e6b99d59be64929048418a3b1cd125e44195ce4c46531368a7d82447. Chain 2 (Bitcoin): anchored in block 959002 (2026-07-21T14:33:50Z), 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/ES94B2100127.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7aa682f4a081daed5967afb8f00e26cc2ba923b8d1dbb15207f078cc2831b52e. 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/ES94B2100106.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbdbe632b3d063c4321ce3fa562232409eb80701fc624c69fa72e99d19c3d644d. Chain 2 (Bitcoin): anchored in block 958404 (2026-07-17T11:34:58Z), 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/QZNJY2020398.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8bc189f904e23df7246a1274fb1ec7956c50bc57529a56bb109ac23e40856050. Chain 2 (Bitcoin): anchored in block 956576 (2026-07-04T02:06:47Z), 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/ESA092234393.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4b85da6e385265a7d587ae9de624bd96675d06f4821f82cb81e5176e2fad84ed. 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/ES60D2300051.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9e511136bc43db39e9f1c77ac891eb7e213e80a9b8fb48cb4fa764dd56ebd9df. Chain 2 (Bitcoin): anchored in block 958839 (2026-07-20T08:34:19Z), 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/ES60D2300053.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdd28581ee6fddacbef4ed55b8ed57564c927e540158fefb67bb7e592276b3ad0. Chain 2 (Bitcoin): anchored in block 958798 (2026-07-20T02:42:35Z), 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/ES60D2300052.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbb61897729f00be6e0d993498b0906e42333810e6e25f822e582663aecdcd282. Chain 2 (Bitcoin): anchored in block 958830 (2026-07-20T08:19:48Z), 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/ES60D2300059.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3a9bd11791b7ccb21404fa9cf943877286f1f5737117f057b1f1ec7613f70956. 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/ES60D2300050.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xff2581b405cad2eda37916dc55a76c8f3f6bc2456056c40fd06753a9fc6b00c3. 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/ES60D2300061.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf381e186e26f3fadcde9cff9a32850c84124f562f3e6d71d5499df1815d1b427. Chain 2 (Bitcoin): anchored in block 957805 (2026-07-13T04:34:37Z), 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/ES60D2300055.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6169947405073b19d12123fa628870fb4d041f23e2f27aefc7969630014f3d14. 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/ES60D2300056.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe03bbdc8ede65087057d12df53bee12942a5b56a3d8342a8248a1f5e9cd8a096. Chain 2 (Bitcoin): anchored in block 958276 (2026-07-16T10:20:17Z), 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/ES60D2300057.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x45b4102d934fddcc07072427919b4a7e3d2bda14ff170189fcee33b15288eea0. 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/ES60D2300054.