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 Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x94fdf473bad178723948ef197a8e732d461b5e751525daac5154e540d2710ddd. 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/b69d8487-aa14-4b24-aad6-5c7e99f77f65.json and https://artists.proofprofile.net/proofs/artist/b69d8487-aa14-4b24-aad6-5c7e99f77f65.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 Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x18e5520f7dbd183c8a2f1e5ed623eea0abc5ce0723c57014078d30d5c0b88290. Chain 2 (Bitcoin): anchored in block 957872 (2026-07-13T15:39:45Z), 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/USSD10004296.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6dadb97f6b7f780ae3d09495ae86842a4ce898aad4d47e7323101b6cad41368e. Chain 2 (Bitcoin): anchored in block 958959 (2026-07-21T03:51:22Z), 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/USSD10004299.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9fd98627b15fc9cbb54a70ce6f76268fe0c10a368bacd74180e346e9fa71fa2f. Chain 2 (Bitcoin): anchored in block 958991 (2026-07-21T10:04:40Z), 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/USSD10004335.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2b1095d985eb05531f7d4db41bfac85cab1a9144f29129b9ab8c3f66e4253da5. Chain 2 (Bitcoin): anchored in block 958695 (2026-07-19T07:37:00Z), 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/USSD10104410.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x402b2d4b6a4c8fccd3723c3c258667eee6b5ccacb95d6f037a7dc5ab1f5d1534. 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/USSD10104420.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd92ab4438d0453e32509c2c9e0f9cb49407241d6f7845f995eb35743c16ed01c. Chain 2 (Bitcoin): anchored in block 959008 (2026-07-21T13:14:05Z), 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/USSD10104413.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x72d2dc68ff2ca4ad317ecb2bd7c3a78c45e971a3c996c99250c912a6d0f9117b. Chain 2 (Bitcoin): anchored in block 958913 (2026-07-20T16:58:47Z), 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/USSD10104561.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9edb0de8646dbb2c8fd9ffd096aa0594845b47cd4d7ea7ea18791cd7de728675. 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/USSD10104419.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa81e32e7235696fbe39dae6f6811cc08ff6a68dc5396958de639bc435e208a4d. 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/USSD10404042.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4f042d35af2d32b9e3b271761418f75ffdee5fbe7963a3e8171249508c87e7d0. Chain 2 (Bitcoin): anchored in block 958621 (2026-07-18T22:59:44Z), 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/USSD10404043.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa3a46bd22ab93b3e9404cce6f702328a06475920e683e05efdf1fead71aacb71. Chain 2 (Bitcoin): anchored in block 956889 (2026-07-06T06:56:49Z), 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/QM6MZ2591364.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6f3846a72ab5efd6cf6f44c4436ed083ed4b3c0959f9162c3e6b8559d660db8e. 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/USSD19904879.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x947e648fc6a30c0ebf2ceebffbcb3dfeeb233d034e8ce8d15171601ac4008cf8. 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/USSD19904881.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb393f53e7baeb8f36052d44886d55e99152cf32f90a9ef366ba4aed45a15f77c. 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/USSD10304387.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa6b872c3fdc4e4bbc057bb301f4183a2cb62f9e04f2e052814aca42eaf0e0138. Chain 2 (Bitcoin): anchored in block 958395 (2026-07-17T10:10:33Z), 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/USSD10004305.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5d546ac1d84cc4322d74de101e8abce3e845ff975c3be72ffa0c2afe6372cfbe. Chain 2 (Bitcoin): anchored in block 958880 (2026-07-20T12:33:53Z), 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/TCACG1563166.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb2273415f1c91be1a116316c498c3ead5b7cf6042bac626c79477716ab2c4219. 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/QZ5KD1700006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9f1e3864e6f257820e8a3dd90bf0a125e9a3efcf661791fd1954142a51179c08. Chain 2 (Bitcoin): anchored in block 958942 (2026-07-21T00:24:07Z), 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/QM6MZ2591295.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa58da4287941255e7e910df719c6f71b82b576b6bc9c867da0e31ab49c67e9d3. Chain 2 (Bitcoin): anchored in block 959008 (2026-07-21T13:14:05Z), 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/QZJ572100001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4ff6659d8eb801a9d76dd591b2ee8f14033f470f4f13601e088c1047ed1d8812. Chain 2 (Bitcoin): anchored in block 958992 (2026-07-21T10:12:17Z), 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/QMEU32122748.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2945d5408d7b1b4e6bc5244b07cc0a04a9f3e9e5922a16139a758354b3287aa6. Chain 2 (Bitcoin): anchored in block 956474 (2026-07-03T08:56:35Z), 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/QZMZ92276515.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x328e57cc67179073c9b377233b91730dc7466a80c6017f63bc777704e2765c46. Chain 2 (Bitcoin): anchored in block 958991 (2026-07-21T10:04:40Z), 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/US7VG2393080.
Pa' Tipos Como Tú (Shakira: Bzrp Music Sessions, Vol. 53)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8b4902d72cb8f10f82780c8b226e8747609d79acb47e38fdbd3967414626a326. Chain 2 (Bitcoin): anchored in block 956742 (2026-07-05T05:07:15Z), 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/QM6N22533340.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xee460d4d425eab8eafb5531e0893ece87974e3a73c621a732b16f2fdfaa16b08. Chain 2 (Bitcoin): anchored in block 957775 (2026-07-13T00:04:23Z), 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/QM7282592738.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x84a2e438fa8155b1a3d689e9f5527842343500a62df9e26b90beaf190a7928c9. Chain 2 (Bitcoin): anchored in block 957785 (2026-07-13T01:55:31Z), 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/QM7282592740.
Especial Musical de Popular: Tiempos de Aguinaldo
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x46f2bed4872d55a49154162a8487a9b73dc8f5ee39aa39d6221d105a31fb3a11. 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/USASN1901309.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd9511f5049e438b04fda9848f10f0601cf79f7267e3a89bd06c6bb20db01ed63. 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/USSD10104418.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe2434e8c45825dcb1673ebbfdfd74ce4ee28999edb14fc518b99dae7879b728f. Chain 2 (Bitcoin): anchored in block 960250 (2026-07-30T11:13:28Z), 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/QM4TX2042686.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdc1121d5a450e1e4d5ab1362d7db8b41bf56771b6231a162869bd2b1753d3e62. Chain 2 (Bitcoin): anchored in block 960397 (2026-07-31T12:24:41Z), 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/QM7282010643.
Especial Musical de Popular: Ellas, Mujeres en la Música
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf1cfd75e2a5c18e086d13664f0668cfb4478178357edca9190af1990b57d3fff. Chain 2 (Bitcoin): anchored in block 957061 (2026-07-07T16:07:00Z), 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/USASN2101663.
Medley - Conmigo Tu Lo Bailaste / La Colora / Mujeres Liberadas / Aguantalo Ahi / Lo Mio Es Mio / Ziguiriguidu / Como Baila (En Vivo)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3680721ed02bbbb8c33ce26d12b9ffca461ef5e2c4a43478532b95dd59ab7ea6. 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/TCAGN2210282.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfd6afb0fba97c048699303d295926d1084dc74d7cbbec451967cdf309a95d3a0. Chain 2 (Bitcoin): anchored in block 960468 (2026-07-31T21:25:57Z), 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/USSD19904889.
Medley Fiesta Navideña: Hecho en Puerto Rico, Pt. 1 - Merengue
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7de9fa4c9f8823325bd2f8ed186454b7f8e98596378e3dc04fe6510d4aa1e816. Chain 2 (Bitcoin): anchored in block 960481 (2026-07-31T23:51:35Z), 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/TCACJ1585151.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdb6667bb381eb63b85427432c245b23df1012a7105a0bea3a3a93deede1ff4f7. Chain 2 (Bitcoin): anchored in block 957075 (2026-07-07T18:50:38Z), 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/USZZR0910778.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb938b3b7c881ed98fee5db2bf4235e406c2170d59878b27b53823accccbb8109. 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/QM6N22467399.
Nunca Voy A Olvidarte - Live from Puerto Rico
25 Aniversario Suavemente (Live from Puerto Rico)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb938b3b7c881ed98fee5db2bf4235e406c2170d59878b27b53823accccbb8109. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/QM6N22467399.