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 0xa58ed5463c557483f35a4b864dff966c75fbdcb16abdc06f5ec7c0083d4c928e. Chain 2 (Bitcoin): anchored in block 954050 (2026-06-17T05:14:33Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/433424fd-0b07-43a9-9536-bd2341b08ac2.json and https://artists.proofprofile.net/proofs/artist/433424fd-0b07-43a9-9536-bd2341b08ac2.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Argentina de América (Reflexiones de Nuestra Identidad)
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 0xcf68466b703ee055c6c3938dad60b17745a1520a7e1703a0f5215654ff2aa2e5. 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/ARJ2V2000008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x67d2ec288cbf017143b230c9f138fbbe94c2d4424b47b38d59431d7088e0bbda. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/ARJ2V2000009.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xac469e175f09f2a9af483d9c3a3cafdbdf5d3626e81fc5cc20d8f3cf8d15bb7a. 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/ARJ2V2000010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3b952b4af3689f279672528c4d81958db347198332cba0b593e2fa13aff734d3. 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/ARJ2V2000011.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaa19f6e775615b6171dea3e6c90737db66b29ba031fd3ca597761c885d30bae1. 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/ARJ2V2000012.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8e5e1c8da3d3215124a222e101eb1ad85b5450d3ee34dce180a6e567ecaf243c. 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/ARJ2V2000014.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaa99c492a050ee43925b88c53b45deea87bb4968224f2f2c9eebc2bdad730580. 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/ARJ2V2000015.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbdcb256af1a11cce8ad0a63a49115e824f1f709fbf2a6e192e0d27c87e947c6b. 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/ARJ2V2000018.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x75a51ba3b4c835e5e69fd7a8112df6b5f274fc6ef5115e157085b0bdc9713a52. 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/ARJ2V2000019.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6f68e126442549e751f85e199cfb9d100a163027d64d443e154f1b54a959c5f1. Chain 2 (Bitcoin): anchored in block 957122 (2026-07-08T03:39:04Z), 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/QM6MZ1483129.
Una Celebración del Rock Argentino Vol. 8 (Luis Alberto Spinetta)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd23dd22e65e91ba4597818e96ac5b525f7472c70ec18275351527fb16d021166. 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/QMFME1547560.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x49e286a40344a5a81016d40319429b791af5f813d34e3572721496bff54f6333. 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/QMFME1547561.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x38e65331f4d7b91be5014abeb78a81440dd3dd333cb549e3dacff5dd421e3639. 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/QMFME1547562.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd2aacfb07e4ac1c2430195dab4efdc2d6c8c9b7b9d9cd5996df5135853687e0c. 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/QMFME1547570.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7db088691303c5b4c9cf0690f5502f2f5a05ce0b6a9b3f6bfbd4fa4fb811166a. 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/US6R21354961.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf6943a832eb72f1d6f4c3d009872016a8997ea568fe4491ad19be23826b6b8cc. 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/US6R21354963.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x539979f04c2c4e08c948cafbab2aca5a2eaa5721cfc05c5fe60df20730daadf0. 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/US6R21354968.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa90feb7c64c7d0561940a291582c17bf3ecc7c2ae101428759fe2d2973da4236. 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/AR9J62400002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x10a1b5bd761e2b7921b414e5bb916d5ab3302939a06e5b64c621a32b053693f1. 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/AR9J62400004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd11e5d73609a68e259caf5426fa0ad481ae92438eb6b431c54fd91e4ee03efd1. 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/US6R21505077.
Viento Sur (Experimental & Fusion Music From Argentina)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xba48aec880176f9f86792b9d88f912accae4b9f831edc15f4eb51b55679b546c. 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/ARF261001100.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x47f1fddc1d47e8ecdbdd64868aadc87d8c1be5f8e21befc0eb9b571fdf2d0872. 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/FR2X41982130.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4173207bc76fc8c8855cb5efc3f33ed25c7b723e41f05aeacf1c41786ef5a9d8. 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/FRX282099834.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7a754dab0c7682526251fdf3df44c88ce3567ee44729a483b1a4f85c4e00b828. 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/USV351463501.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x82c4a47fc10b911076da9e3678f20861e385ee830ac99660c2c2c924de5e1cd6. 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/FR10S1984810.
Una Celebración del Rock Argentino Vol. 9 (Litto Nebbia)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc90c495b936ccbc26e1779d22b17a2ee38d9e17de8456a2cd39c2e354288b069. 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/QZNJZ2258523.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0f3c5f35d9e00aa477155d8b387e267d4ab5e6cfc17e7c5ea5d9b76f74227ef9. 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/QZNJZ2258524.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc6db78b4f6327b25dcdbb8f26455975a0bcb010962a8d60b9ffc583eb22071ad. 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/QZNJZ2258527.
Temporada 75, Pt.1 (Silbando en el amanecer)
Los Archivos de Nebbia, Vol. 2 (En Vivo, Mendoza 2002)
Nostalgias del Harlem Español y la Luna Centinela