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 0x112134f727a701e36badd9f72f7ed5640de85e4e4521609d338c45116d2c8915. 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/781a2288-ce77-4a17-9afb-a90b3f8241a2.json and https://artists.proofprofile.net/proofs/artist/781a2288-ce77-4a17-9afb-a90b3f8241a2.ots, the client at https://opentimestamps.org runs `ots verify -f record.json proof.ots`.
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 0xfc306c4e1dcc881ef7c8db9d3b33613c4e6a0d301ee0fb77e79322f703dfd4e0. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ARNIO2200035 — a six-check JSON result.
Me Vas a Extrañar / a Chillar a Otra Parte
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbf3f635f793b8ab2b01bb4c6251040faadd7365d150c2467b8c06abac23dfcc1. Chain 2 (Bitcoin): anchored in block 958276 (2026-07-16T10:20:17Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ARNIO2200036 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7920a7e159f4ad907d1200a6c1ed77a8db3cf1cd008d833e7fb859af38b7f0ea. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ARNIO2200037 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe8629680d0b938398e164c3d55ed0ee7cb35055132c3d15446d3f832415fdc7d. Chain 2 (Bitcoin): anchored in block 958166 (2026-07-15T15:55:19Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ARNIO2200025 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8327eb458bfc9a448b8502797a449a3a28ac0b5255975e00f871ec0f3b844d31. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ARNIO2200042 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x238b399f7a633dc4852fc67c9e8147e1909fc965a0c0129ff2766bea988333b6. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ARNIO2200010 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xde3cd826294685271af097e79f9aa5139a58aab3f56ae71c3dd681155042244e. Chain 2 (Bitcoin): anchored in block 958931 (2026-07-20T21:15:01Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ARNIO2200038 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x50d95a2378bd1d4ea1f8f090ad3e473b0f72f6d5d1c72e3c5b2d269930d30454. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ARNIO2200039 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf12d6ba7557bd193ee8bf5b5c688a633a633c28cb2269f35b39cbfa8671babb6. Chain 2 (Bitcoin): anchored in block 958905 (2026-07-20T16:14:34Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ARNIO2200040 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4618ca93353f555e48a484961a5a604b58fd02a4c01172f85650051386a5fbb9. Chain 2 (Bitcoin): anchored in block 959144 (2026-07-22T15:38:35Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ARNIO2200016 — a six-check JSON result.
En Vivo, Teatro Provincial J.C.Saravia - Salta (Pt. 1)
El Mismo Aire / Levantando Polvareda / Me Sobrabas Tú / Alta Patagonia - En Vivo, Teatro Provincial J.C.Saravia - Salta
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaf95a8691f37d5eb5f8971bed9861aaf5cabc3b958a2af9f9e277f789815e445. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ARNIO2200017 — a six-check JSON result.
El Bailongo en Lo del Rengo / Nocturna - En Vivo, Teatro Provincial J.C.Saravia - Salta
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8dfa3fd2f9b49c6d0134aac8f7a982ecf231e8a35eb08836623eb5ec08dfa888. Chain 2 (Bitcoin): anchored in block 959037 (2026-07-21T16:59:47Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ARNIO2200018 — a six-check JSON result.
Se Me Va la Voz / El Conseguidor - En Vivo, Teatro Provincial J.C.Saravia - Salta
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1312c4422a9ce1c8d39917a4f59ba22cccb654dcd14d5de369e662ef04501f86. Chain 2 (Bitcoin): anchored in block 958455 (2026-07-17T21:28:36Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ARNIO2200019 — a six-check JSON result.
En Vivo, Teatro Provincial J.C.Saravia - Salta (Pt. 2)
Cómo Marea / Besitos - En Vivo, Teatro Provincial J.C.Saravia - Salta
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe0c3bfe267ea1949117b78895e1f811ebc7fe367ddb532ec5da7f688dc12ee1f. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ARNIO2200021 — a six-check JSON result.
En Vivo, Teatro Provincial J.C.Saravia - Salta (Pt. 3)
En Vivo, Teatro Provincial J.C.Saravia - Salta
Lo Intentamos / el Sargento Sapo / Te He Prometido - En Vivo, Teatro Provincial J.C.Saravia - Salta
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x353d00b90f1f3238478d16cb4711c29c468f124f7dac7a9101dba5e378b82a5a. Chain 2 (Bitcoin): anchored in block 958117 (2026-07-15T07:36:28Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ARNIO2200023 — a six-check JSON result.
No Cualquiera Es Correntino / Te Regalo / Curuzú Orilla / Zapateando / No Voy a Volver a Llorar - En Vivo, Teatro Provincial J.C.Saravia - Salta
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4d3658d67ff9c983e0c00373566af7b8d80b6cd95a781f74f405b491c92724b5. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ARNIO2200024 — a six-check JSON result.
En Esta o en la Otra Vida - En Vivo, Teatro Provincial J.C.Saravia - Salta
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb885680133ec7b03c7e7b11833f3c3f5e03a5de02f0ac22c46647c42faac177d. Chain 2 (Bitcoin): anchored in block 958662 (2026-07-19T04:43:15Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ARNIO2200043 — a six-check JSON result.
Sin Tregua / Dueles - En Vivo, Teatro Provincial J.C.Saravia - Salta
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa1824886fe92ddc6c8956284a329abcc9e073e70b8573cc31f4c7d28dc9a3074. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ARNIO2200026 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaf95a8691f37d5eb5f8971bed9861aaf5cabc3b958a2af9f9e277f789815e445. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ARNIO2200017 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8dfa3fd2f9b49c6d0134aac8f7a982ecf231e8a35eb08836623eb5ec08dfa888. Chain 2 (Bitcoin): anchored in block 958785 (2026-07-19T21:40:06Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ARNIO2200018 — a six-check JSON result.
Se Me Va la Voz / el Conseguidor - En Vivo, Teatro Provincial J.C.Saravia - Salta
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1312c4422a9ce1c8d39917a4f59ba22cccb654dcd14d5de369e662ef04501f86. Chain 2 (Bitcoin): anchored in block 958197 (2026-07-15T20:40:29Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ARNIO2200019 — a six-check JSON result.
Estoy Enamorada / el Gateao - En Vivo, Teatro Provincial J.C.Saravia - Salta
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3416b803ce5cea026a627bc478df31795d95f96d418c1c8e65f1650f4cbb5dda. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ARNIO2200020 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe0c3bfe267ea1949117b78895e1f811ebc7fe367ddb532ec5da7f688dc12ee1f. Chain 2 (Bitcoin): anchored in block 956728 (2026-07-05T01:43:49Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ARNIO2200021 — a six-check JSON result.
Así Se Baila el Chamamé / el Toro / el Amor Más Grande del Planeta - En Vivo, Teatro Provincial J.C.Saravia - Salta
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4b6634c853a10bb7c5d5ddc5d9a2d74770fefd91bffe6943fa893f081023c38a. Chain 2 (Bitcoin): anchored in block 958779 (2026-07-19T21:08:39Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ARNIO2200022 — a six-check JSON result.
Disfruto - En Vivo, Teatro Provincial J.C.Saravia - Salta
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x624f68657681f886d8d3dc1e952e992fd5ceb3c76ce298c21fce297f6677ae71. Chain 2 (Bitcoin): anchored in block 958931 (2026-07-20T21:15:01Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ARNIO2200027 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbed98e142073cd3412ff4675cea8d090110938ed195812dd5c168ba9f0da0bef. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ARQVZ2300002 — a six-check JSON result.