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 0x22323b2e55631ad48eb287e4577985eae0a3c5d74e437fe6f18c6e6385c3dd91. Chain 2 (Bitcoin): anchored in block 953423 (2026-06-12T21:20:00Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/a93a705e-bb55-4d11-bf39-f4f475103081.json and https://artists.proofprofile.net/proofs/artist/a93a705e-bb55-4d11-bf39-f4f475103081.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 0xc9cf2508764c87d2f707f06133c2e814f3fc209c3dd978dd01d6948e02dfebd4. Chain 2 (Bitcoin): anchored in block 956620 (2026-07-04T07:11:13Z), 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/FRX871522634.
Éxitos Inolvidables De Oscar Avilés Y Fiesta Criolla
Oscar Avilés: La Guitarra del Perú - In Memoriam (1924 - 2014)
Arturo "Zambo" Cavero & Oscar Avilés: Desde el Cielo Le Cantan al Perú
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x566955d7a7a0302916842e98eb772a7b74736bd90ba558ba53405897904378c9. 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/FRX871529786.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x76353a02db9a5b5f3383758d425a48b8a2cb04400d2be9d557db68800d87cb52. Chain 2 (Bitcoin): anchored in block 958140 (2026-07-15T12:39:12Z), 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/FRX871529792.
Un Perú en Sinfonía (Remasterizado 2024)
Oscar Avilés & Mario Cavagnaro: Desde el Cielo Le Cantan al Perú
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3a83bc2f39d1be95d833de16f4a91c5f9121510add696b07a84c7514b174ec17. Chain 2 (Bitcoin): anchored in block 958368 (2026-07-17T05:03:25Z), 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/FRX991588979.
Oscar Avilés & Alicia Maguiña: Por Siempre Juntos!
La Peña de Oscar Avilés: El Huerto de Mi Amada / Cuando Llora Mi Guitarra / Morir Quisiera / Juanita / Falsedad / Ay! Aurora / Nube Gris (En Vivo)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x36073b7ace96822beb976dbbccb97c73f3d9af253ed31c4d254d8e113dc748f7. Chain 2 (Bitcoin): anchored in block 958838 (2026-07-20T07:01:21Z), 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/FRX871530248.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x94bfa6e3d9b34aac75c2d7a5b634d348df9f2c934a2c2d8b6a673a0fc807e51d. Chain 2 (Bitcoin): anchored in block 958325 (2026-07-16T23:35:59Z), 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/FRX871530250.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf14b0137afa29d8995443c4dc8ae3aaefae214f31278516a8cf26a1d559011ce. 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/FRX871530253.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc8ee94170b177e3d443d8fa797b2d64fc203be911922f8253fe1e6a46171005e. Chain 2 (Bitcoin): anchored in block 959065 (2026-07-22T00:53:58Z), 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/FRX871530254.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x917f79c52a431e7f0e6cf2fd5d815008864e033e9ef33fde770979a41b5bfaf5. Chain 2 (Bitcoin): anchored in block 956422 (2026-07-03T01:01:38Z), 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/FRX871530256.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc9e0017916cd5e863990239337815e6cc930afbb4ae05753568749b997da3569. 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/FRX871530261.
Oscar Avilés: Antología (La primera guitarra del Perú)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc9cf2508764c87d2f707f06133c2e814f3fc209c3dd978dd01d6948e02dfebd4. 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/FRX871522634.
Arriba Perú: Y Se Llama Perú / Contigo Perú / Esta Es Mi Tierra
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x85329ab05ce2a50f56a482b2a688411d34cde8a705ddd60d6a8c19d87c5fa313. Chain 2 (Bitcoin): anchored in block 956776 (2026-07-05T10:59:37Z), 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/FRX871522614.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x93722a32a0c27c73296d8b824bb21876a7954accb608e2e55abde4bcd4c8fc22. Chain 2 (Bitcoin): anchored in block 958137 (2026-07-15T09:47:57Z), 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/FRX871522620.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x82dda352a7cafbebd1750f9a05c1817a61065cc37f39de9b6586fc80f4fa66ba. Chain 2 (Bitcoin): anchored in block 958520 (2026-07-18T08:19:09Z), 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/FRX871522623.
Y Ahora Aviles Con...Banda y Gabriela Ortega
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc56ec5c9e2d7e2d9ec0bde042f926034c7d9dc4f07902a6b6f1c30e2bfcea005. Chain 2 (Bitcoin): anchored in block 958286 (2026-07-16T14:12:13Z), 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/FR10S1579375.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf2864e1815de78b5a86a128d5d9f6027795a709f0625565e79491e3e5397df4d. 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/FR10S1579386.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1554bf194f089b347218db621679272f5ed7e264b3b46deecb9951fa1253ae95. 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/ES71G1815712.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc23b161c66baac88b6e0cd5cf908c5d88ff8cc30643862b079129ddb3e76fbfd. 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/PEMG91006001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x97ad3ae445defcf6ade2ec3179e2aeef4ca4d32c2788d7c9e26d80f1a51743f1. Chain 2 (Bitcoin): anchored in block 956894 (2026-07-06T07:53:57Z), 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/USRAR1001066.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa50b83bb67a6221c3a2bef3ac25d75f0af9201e52916aaf8f3f42ab69d10a3c6. 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/PEMG91446005.
Oscar Avilés In Memoriam (1924 - 2014) [La Guitarra del Perú]
Oscar Avilés & Mario Cavagnaro: Desde El Cielo Le Cantan Al Perú