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 0x5f97a7be70d2b96962806c3bcb6382d90415d86cf2603be0922201c5086c0ada. 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/250b2ba2-3092-4834-892e-84c11a72cdfc.json and https://artists.proofprofile.net/proofs/artist/250b2ba2-3092-4834-892e-84c11a72cdfc.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 0x355c2cf561e27f0e655d3519cf64afe06198cb228f82e160d86f5e74affc6355. Chain 2 (Bitcoin): anchored in block 958271 (2026-07-16T09:16:54Z), 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/ES6490411301.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x09b25de5140a133c21ee2eb587376b845eb8473403f1e5d223d7c89cfea4dcd6. Chain 2 (Bitcoin): anchored in block 958163 (2026-07-15T16:41:06Z), 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/ES6490411306.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x35fec060359a0eadd6b97aef912d424095383a5fb81533502879c0de4a5b5341. Chain 2 (Bitcoin): anchored in block 956404 (2026-07-17T02:37:00Z), 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/ES6490411307.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x17caa33b1623cee63d1d8433baf4cdf09be6f40d54052b7b446fa7b23032fc69. Chain 2 (Bitcoin): anchored in block 958216 (2026-07-16T00:00:34Z), 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/ES8410600003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbf375974bb5a9e68616bcbd491b0df30b14ed596ff0f8b570243cd90b8b8e67c. 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/ES8410600004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x238324af02b2541c771a1c848f53963fcbef021363b0738925b61c6882892ba4. Chain 2 (Bitcoin): anchored in block 958491 (2026-07-18T04:29:42Z), 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/ES8410600005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd94291db7dd8f413f9ea11bb3fa58d0cc231a41b60769e5e422d1a7eedeb75d8. 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/ES8410600006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6aee0e689915f83682304b7bf4e7ec47cafda73f8ce10306cb7f4c73268a85ae. 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/ES8410600011.
Todos De Pie (Prefacio) - I. Algunos Recuerdos Significativos de B.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xecc58e74ae9a0664c9b1b374ce52059ea52f8f975bdde50e02d85766efb007c4. Chain 2 (Bitcoin): anchored in block 958706 (2026-07-19T08:50:34Z), 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/ES8411000012.
Hombre Araña - I. Algunos Recuerdos Significativos de B.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x17a47ece39bc702259f17c32f654a556b58c81c072a715e2be9f3fc2ab67398d. 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/ES8411000013.
La Familia Inventada - I. Algunos Recuerdos Significativos de B.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6d3758027cda8fffcd4a686806f09ed0bfddd70c543b5afe35231ef344f6eb99. Chain 2 (Bitcoin): anchored in block 957747 (2026-07-12T19:35:06Z), 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/ES8411000014.
Hay Que Parar - III. El Corazón De B. Despierta
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9b3c36d15731668a312ddb8f352e33ee007e4eafce3591d8a39c19e2836ab604. 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/ES8411000028.
El Resplandor - II. B. Pasa De Querer Comerse El Mundo A Esconderse En Una Pequeña Parcela
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc3abc3507446eea6d16ce32c6e48ec20c32260d120feb5ad09e2bdc8f86b2648. 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/ES8411000022.
Cancion Sin Fin (Epilogo) - III. El Corazón De B. Despierta
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x98f28609368327b4bed62a3334b6a3132bd9a90bb6f3dfdb8549b265120fc742. 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/ES8411000031.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x99f645f8f9ce56aa318b354e88bee9db69cb5bd79d5675ca12f83e04bef3c77a. 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/ES8411300032.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfcca6d7db0e5638869a60054f011dbe7d00b3cf20323146917cb426234b661a4. 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/ES8411300035.
Estaría Muy Bien (Standstill Último Concierto)[En Directo]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1b9b5cf78f983d66887bdb34ef09a485c5f917f8d6fc349fa524b8f49bac6d35. 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/ES8411600073.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbac3ae461ffc2cef1c58adc3751ab37ad8a62a5bf08b9d11e93f9a77033774d4. 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/ES8411600076.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1fdf47d01d6718da4b2ba519e4cd87ab9406bd60836b103aa5cd800a96689c75. Chain 2 (Bitcoin): anchored in block 958808 (2026-07-20T02:49:15Z), 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/ES8411600088.