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 0x78761c0b543fd32c330257509e14e35a9339f905e8253a74b4841ec8b9a37139. 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/d0b955e5-f9f0-498a-911a-9b844d1f5832.json and https://artists.proofprofile.net/proofs/artist/d0b955e5-f9f0-498a-911a-9b844d1f5832.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 0x49267e2c2d2fefc14e64787984b845fae64726316d72d2a5454729fc5a437da4. 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/ARG991000792.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x507bc40564e7e72072896de965c601acdbc5d4264168179ca326bfdc18779520. 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/ARG991000793.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd14111b2c83d37f89361c18b9fad65b3d1808956d2b3db18184133b1f0e2d746. 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/ARG991000794.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe42fb374e9a0a065d45127dbe9d37f923a09b35e1ec4fe96219a50085f783c28. 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/ARG991000795.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x967ba4a1d6250a3578704e5c7211c9b993bb0a6e4b1d54958d849bd504b507a5. 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/ARG991000797.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8aa019c6800486994b41d9bebefd51aa945031ea53d518b5bac83afc08098f33. 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/ARG991000800.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc2c4809b029918b5f800e4518cfa7e5bfdec0888fc6c412c05769d6792c4c2be. 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/ARG991000802.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6c9b86b19bce97f60cc973cf55cd48b246d82a4950c0ae6337a3635496007eb1. Chain 2 (Bitcoin): anchored in block 959163 (2026-07-22T20:47:24Z), 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/ARG991000803.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x95cf1dd88fedb91ca9bcbcbaea86f57540fde3cc903ec62e2f1b102059992a85. 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/ARG991000804.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa117d32775a562afcf6fc3b8952c799aaf995d08d1ffc1b4aa3b3cc247effb9b. Chain 2 (Bitcoin): anchored in block 959123 (2026-07-22T11:35:32Z), 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/ARG991000807.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x48501b1c952044e4342a83644aa09725121680c3e7b26c0f3275edeaf6ddf974. 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/ART721510001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2b48c677ecb961d175afe1c60790da8cce5c9c857654043441bcb1814e9ec631. 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/ART721510002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x647f98e5e4b26bb26bd3e2eb99abe632cb55f4b52d6ce745eb93666f010d4328. Chain 2 (Bitcoin): anchored in block 957819 (2026-07-13T07:53:33Z), 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/ART721510004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9f56b2697a4db12e4aefa7e537a2e99f8735cc2f77ad81df910864fc57133679. 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/ART721510011.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3ff1f1460dbace4499059b47c9f4ce46de31fde2b6efeeb48f1d79beb74bd9dc. 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/ARG990901753.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcbd37a2e71f4df0b69da3de9864a4495ef72145a4f9e95c166b666ef83cab90c. 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/ARG990901759.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb20facf3870e14b324e50cf2736f9d8035a587dad11cb06ac0737c78e7d48cfd. 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/ARG990901763.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7879b0df24a53d50325b986266b292a8ef3c784deccab0f8ce4e18e96828be99. 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/ARG990901768.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x140541443ad9eb2cb82f5ecc2a70f81a08708f71ead6c25e3e42647021f7337b. 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/ARG991024250.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x70dfc9ae1680452d4c4883b06940e889a8d38e6e5b15649782f776fb325415da. 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/ARG991021470.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd1ee8a1b46fbc40109a32a6c3f08c1ec3cd24a72599f44bcd72eaad98fadb1cd. 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/ARG991021500.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8e8b680eccaf175b807d600e95eb8b54a11f7f0ca9dc8d1d068c7bb3464259d0. 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/ARG991021351.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x127bee5eb0d1b077c91eca9c09b7720eca1a9873a34a5c441387dd63b2a23d06. 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/ARG991021353.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x99cc0aa1ca4269d5671f892623462907f2ecfe6fb194ffefb53daba925df02af. 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/ARG991021354.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfbba4c81c3372dd1a3e7dc728baefc10ee7b641f3a9f3cac6fc4cfebc162365b. 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/ARG991021362.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbda799b8859d365f8c61bf0a2c8c17b3fa556f6bd6f4d5fec6ec2de40369d4a1. 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/ARF037200146.
Los de Salta Cronología - Con Gustito a Salta (1987)
Los de Salta Cronología - Provinciania (1985)
Los de Salta Cronología - Bodas de Plata (1983)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1188b87981e1e12b9de0920761b89057ee50f81e4eb01bd8b8fae90748be1b5f. 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/ARF038300202.
Los de Salta Cronología - Salta, Mi Canto Te Canta (1981)
Los de Salta Cronología - El Cielo Azul de Los de Salta (1979)
Los de Salta Cronología - Rodando Cantos Rodados (1976)
Los de Salta Cronología - Lejana Tierra Mía (1975)
Los de Salta Cronología - Los 15 Años de Los de Salta (1973)
Los de Salta Cronología - Desde el Alma (1971)
Los de Salta Cronología - Los Hermanos Sean Unidos (1969)
Los de Salta Cronología - Desde el Corazón de América (1968)
Los de Salta Cronología - Para Cobrar Altura (1967)
Los de Salta Cronología - Los Grandes Éxitos de Los de Salta (1972)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbda799b8859d365f8c61bf0a2c8c17b3fa556f6bd6f4d5fec6ec2de40369d4a1. 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/ARF037200146.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc094e72084ae6c8271bc81ae89cf1356af7c577d6f5d848bf2a451ebb747637b. 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/ARF109901318.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x60cefda62ca64c91d3b89ee7aa883f816afdd0dd863498b89a8cf8df23d363f6. Chain 2 (Bitcoin): anchored in block 959114 (2026-07-22T08:41:42Z), 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/ARF109900661.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5f54a89fe4af5a17ab54171416605d10d033eb2bdf4e44810f2b5c990835ea05. 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/ARF109902132.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3e98628e7163ceac4f44a8f32a6c25c2b6ef37ae5c92dd8961b296070e35f81d. 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/ARF109902133.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x540f90e5fb0c517d9f1ee190dd793367299b46ada9d0ddb829cfeecefbc9403f. 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/ARF109901681.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf9720d07275b131612ce71102d033089e68467d9444d6d1d51796cf73504e9bc. 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/ES71G2216082.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xce1fd0425f898a8ae5a94b15d5d3142c4cc6b7d0f69e14495e475b60f837a7e8. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/ES71G2216088.
Lo Mejor del Folklore Latínoamerícano: Artistas de America
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x23b00052dfade62c25295eb4b32a61d9bb39bb7bf22b61b26c4f16007524e8af. 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/QMFMF2143948.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6bacfb1155cc04329d8144ea3c2b48958239aaa7b135144a0b656a128e476524. 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/AR8L71401211.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x336c534e0768f7557ea70db4febb1ef0db02229b7a1bb1abad5740083db5f02d. 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/AR8L71300187.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4b1cd623acbb4f5f3f0f9bc6e677cdad34a110b31acac049ffd0c954a30d357f. 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/AR8L71401210.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3da7efb7c4e6fdbc5d5028e85688f930823c933c76ae2622a26eac0227f74f3b. Chain 2 (Bitcoin): anchored in block 959159 (2026-07-22T20:43:10Z), 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/QZZ662313272.