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 0xaaa90be261dc8535e6358215e05e3c272cf9d6e17410e32b51686de898b723c3. 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/b65bf03e-90c3-4930-960b-30d3c03dc9d8.json and https://artists.proofprofile.net/proofs/artist/b65bf03e-90c3-4930-960b-30d3c03dc9d8.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 0xb4121c5ff00f3b25b76d9a1aecfe57e757132a49edd34a954e8eca1cd2ad449b. Chain 2 (Bitcoin): anchored in block 957891 (2026-07-13T18:21:04Z), 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/ES5160500285.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3c6030a7598f11ab417c1d0c91f7ade2053d126da274014595e80987c137fe0a. Chain 2 (Bitcoin): anchored in block 958736 (2026-07-19T15:47:39Z), 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/ES5021000461.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x33e2ed93acc8762a518386df12811f5d9ed9611abd10ad581a199ad1cf09f624. 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/ES5021200240.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf503f58a17345aae3be6ba600f3913ea5ff3dd14c5a595255acff41f3f540b0f. Chain 2 (Bitcoin): anchored in block 958410 (2026-07-17T12:18:07Z), 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/ES71G1832407.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe06aaec1f9e2510084b6f4f4c14e65ddf3e098d9082c0d865e198d072d2e7b59. Chain 2 (Bitcoin): anchored in block 958415 (2026-07-17T12:50:13Z), 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/ES71G1916125.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb48f9df1ff01dc88f6c3f5df694f4f6a17c9c1a264f8fad05d474c345784fca1. Chain 2 (Bitcoin): anchored in block 957888 (2026-07-13T17:43:59Z), 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/ES71G1765260.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7dc66fe8d007104c0bc5b30409f8ef8f89b948ea6646697ec71955dba995a482. Chain 2 (Bitcoin): anchored in block 958324 (2026-07-16T23:21:02Z), 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/ES71G1613179.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x006ece34f9efed5b075f8d0955c81a59b0cb891a80aad1abcb5dfb8b2a2524f4. 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/ES6672304819.
Generación OT Juntos (Operación Triunfo)
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 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 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 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 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 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.
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.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x181acce35e4e65515ea5d596658574d0ec5f135d655759132684211b1b04ed2e. 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/ES71G2020806.
Las 100 Mejores Canciones De La Historia De O.T (Operación Triunfo)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x91b1674dc97d306bd3a979c4814455444266eb698def96cf70d8bc59a027a388. 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/ES5702000466.