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 0xc34e6321fd9f0ec12b52bf883984cb284e17b88ae68c23d7ec58dd99a1e0ea99. 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/536d6588-bf7b-43f6-af6a-1aadb9177084.json and https://artists.proofprofile.net/proofs/artist/536d6588-bf7b-43f6-af6a-1aadb9177084.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 0x2e39305ab2a32884dfcdf47ab2766e85d44f019dafb5a5cd90bac3f7f94c91f5. 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/ES5702101401.
Generación OT Juntos (Operación Triunfo)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcb452c66c7affb67dd413da3497e03e63f25c2f860b85ff46bcc3d1bfbf66764. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/ES6010300050.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcf1f78248bb029b3b403283725377b6294d7fbb1077657161f0b519c5ca25ff3. 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/ES6010300051.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x119b6df78e3d14be4aceb8615fe941d653f3c51cec537b9256358586fed43c58. 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/ES6010300052.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcd92e97134cedb7fd925fa686720e9a09057b9ca8ebcc5b8ac59fc9c1f7d5222. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/ES6010300053.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe23c18f51fe6ec1fb8b4310b6721cff6f39055d8c7fd6c085d73c62730414fd4. 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/ES6010300054.
En El Medio Del Camino (Sister Golden Hair)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x77179ae696ff7b2b40bd14b9e8b14242c2881fd1c6181994e2de961dfbaec252. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/ES6010300055.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x63686167f39011eee01c10f7b127a4f2a8774bfe11821d5222f5fe415a22c585. 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/ES6010300056.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf4498a4eb8b1fdb60750e95169eb2360b1823755ba986c9fcf6a32b815650c68. 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/ES6010300058.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1c5b02e649fa6e51fb7792bdbdb59b45a98622613ca4216402cf7471ae27c0ca. 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/ES6010300059.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5b0306acf9c515f18572c451038bf0ba7ba3295ee414bdcc6258a965440ec94d. 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/ES6010300060.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x723fbdab866183c4042fb67c30a31e4261cd6fb425a5a504906385d1c66bad8c. 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/ES6010300061.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x462b0b389cda0641a6cede963d4f2afb47870494fadd6136c2d87a54ccdb9348. 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/ES6010300062.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x734bd98893b804310c753e35937f2b5d0cfe2769cf0e7d369eb82b1fb218fc2e. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/ES6010300063.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x62a91a543c6949ae9b403075c41fc02997165cc8ff48763e6f89bd716ed278e6. 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/ES6010300064.
La Fuerza De La Vida - La Rázon Para Luchar
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6fc1253226ed2d84d7da5ffd12ed079c318d40e47146f87f028c9b549c1f788e. 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/ES6010200512.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7772a7afd6dd9ab113ffe4fcbac040d2215cd426055b72d58b52359e5adb789f. 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/ES6010200513.
Eso Es La Amistad - That's What Friends Are For
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x98dba50ea06d7276b9f5b91de96fe3a557572993f222aac59cf3b1c1a4d4697c. 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/ES6010200514.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5f21ac666c6adcdb5efd0dadbe4f96f049209491d9c5d15948df58643e466c6c. 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/ES5702000426.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x214f0b32acd9eb5f12dd562532d81344981b4f840199e2949815a70d060449ec. 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/ES5702000007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x91b1674dc97d306bd3a979c4814455444266eb698def96cf70d8bc59a027a388. Chain 2 (Bitcoin): anchored in block 956351 (2026-07-02T11:38:34Z), 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/ES5702000466.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x43accf22e374d936230542d7619e376e77cfab6e9ee32dc8533d70addad5f44a. Chain 2 (Bitcoin): anchored in block 958041 (2026-07-14T18:13:17Z), 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/ES5702000041.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x08ed5b28247f357f28ea8fab9cb91e28b03142c69a28adf91b4cd04916bcb3e4. 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/ES5702000446.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2708a5ae2389e03bb796254e82717f35f24c50602aa2441debb12b11a3e60f3d. 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/ES5702000046.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x08ed5b28247f357f28ea8fab9cb91e28b03142c69a28adf91b4cd04916bcb3e4. 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/ES5702000446.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x394cd34091736af15f936bb9f5e4db26322ffaf76dc9e3ffb1bd322bb1a90207. 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/ES5702000448.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf3448757c10ea2aad1bc9e786aa6fafeea78b877edcbc40d07ef51b5359cf191. 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/ES5702000449.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3603722ea21e6193d169d4dddff03d986d2f88581af728714cb26e77284067ed. 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/ES5702000450.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc3e74835662bc5e516a6db76a558601c347f3e46e1edabf88d448b6fe1a50055. 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/ES5702000451.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5f21ac666c6adcdb5efd0dadbe4f96f049209491d9c5d15948df58643e466c6c. Chain 2 (Bitcoin): anchored in block 957065 (2026-07-07T16:43:21Z), 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/ES5702000426.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbda6d5593764ba79d614669fc3ce0c78af51e94ab11895506bc16ff12905f634. 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/ES5702000427.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcaaaad59052ac3d06970068d6877d5e056bd9056de8bc4b450d7cd81749d7015. 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/ES5702000429.
Pasaba Por Aquí - En Directo En Operación Triunfo
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa8dfde6e106fc9d0be64510615bd4bd0d199157dd75bdec2db0f8ceae9f34339. 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/ES5702000406.
Tú Y Yo Volvemos Al Amor - En Directo En Operación Triunfo
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x06029316c1081db80f42eca6c628e56ef703da52fe19758c5de3bfc08570cc1f. 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/ES5702000425.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1d1f15094899219fa1a92dfe0cf54e12c7062f0ea8ca6f543a728e515810ac18. 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/ES5702000456.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8b67ae04dfebaeaa81996fcfa78a081757a3b2ac34ecab254bbefb00cda8fa52. 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/ES5702000460.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4b638d040bd5c33e3a1fdfc4e1fa1fd70598ca8e9f13e9d5f070ff3d13cd4367. 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/ES5702000048.