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 0xa4e4076db74133f5c85b2533512b671cff4bd384268f0a32c1bb781e67600c9e. Chain 2 (Bitcoin): anchored in block 953592 (2026-06-14T05:36:59Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/0787906c-83d3-4b8c-89c0-011831d8fc61.json and https://artists.proofprofile.net/proofs/artist/0787906c-83d3-4b8c-89c0-011831d8fc61.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
30 Años (En Vivo Teatro Flores, 09-01-2015, Bs. As, Argentina)
Ayer Deseo Hoy Realidad - En Vivo Teatro Flores, 09-01-2015, Bs. As, Argentina
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 0xf39e55dc599c6566a2f07ad7e0b2bce343a356f404fc317cdedb5da3510fb544. 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/ARRDX1500430.
Cancha de Lodo - En Vivo Teatro Flores, 09-01-2015, Bs. As, Argentina
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1ef9dd2750a9dbbc0cfcd74a187e92c790fa16c2a78d257d6829286a67872740. 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/ARRDX1500452.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd7547cfb76474e0a5531369108769ae8e020f4fe87d1a8c1b2266e48c76766eb. Chain 2 (Bitcoin): anchored in block 957735 (2026-07-12T17:47:43Z), 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/AR8TN2100031.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe7ed8c9ae0c82b79a793c5902c1138c8cf3d0fff5c97cf9d297b623415e726a6. Chain 2 (Bitcoin): anchored in block 958401 (2026-07-17T11:10:25Z), 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/AR8TN2000462.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7656f1ef84f9665618c5d695b5240f763d60f169375cc6c3dd8f7fb64fe91dfd. Chain 2 (Bitcoin): anchored in block 956822 (2026-07-05T18:48:28Z), 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/AR8TN2000464.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd562cd3bc694d9e8a1e47e3a71578d7f282f60aeb1e91fa535095fce5761fda8. Chain 2 (Bitcoin): anchored in block 959100 (2026-07-22T05:29:55Z), 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/AR8TN2000465.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeeb0a43205690a306ca56d325dead644020d94fbf0d9bda8e195f6c16e24654e. Chain 2 (Bitcoin): anchored in block 958951 (2026-07-21T02:01:41Z), 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/AR8TN2000466.
Masa anestesiada - Ayer deseo hoy realidad - En vivo Teatro Flores
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0a16e0f64f73d3e1163df6ba96ac410fcd0ed9974488204bd53ce39816348a36. Chain 2 (Bitcoin): anchored in block 960344 (2026-07-31T04:14:58Z), 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/AR8TN2300371.
Hospitalarias realidades - En vivo Teatro Flores
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeb135ae0136b92f4e209dd5ec22ba6d9462a5e3024920436854ab340539e0245. Chain 2 (Bitcoin): anchored in block 960441 (2026-07-31T17:29:52Z), 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/AR8TN2300372.
Espíritu combativo - En vivo Teatro Flores
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb51a01fc01901a22711fc356d4e828a936c34d4e153e6b07f14076f696a69038. Chain 2 (Bitcoin): anchored in block 960368 (2026-07-31T08:26:41Z), 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/AR8TN2300373.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xea398c0cbf46b70fcee0e4468428bf3f4c87b835f84aebcacf1f1cc5a80fecd5. Chain 2 (Bitcoin): anchored in block 960473 (2026-07-31T22:27:44Z), 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/AR8TN2300374.
Memoria de siglos - En vivo Teatro Flores
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x072e34a9bbc7bc4efaa5abc0a6a45e91f68b5b126588bb6510cb56e0349f846f. 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/AR8TN2300376.
30.000 plegarias - En vivo Teatro Flores
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbce824ff571f73c64dce129cb2b212a14eba1d5eb08fdc67ab9eeb48e6d11280. Chain 2 (Bitcoin): anchored in block 960284 (2026-07-30T17:23:26Z), 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/AR8TN2300378.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdde6c7ded3c8455327c1a3e2481c7dfb83002c78cf52cad91db4dd4773c3e5f2. 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/AR8TN2300380.
Castigador por herencia - En vivo Teatro Flores
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb7e1669f44f256d32995117fb7b99f7b06c798198a220dee05db424075f2ef86. Chain 2 (Bitcoin): anchored in block 960403 (2026-07-31T13:04:34Z), 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/AR8TN2300382.
Soy de la esquina - En vivo Teatro Flores
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0ead3530a50d5d228295bd89ae6e3052dcbdf43310eb37e9d933f2c83d9e4a0b. 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/AR8TN2300383.
Atravesando todo limite - En vivo Teatro Flores
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x997f64c30004dd64504f8a628b70be3cd04a559fbfbd8ea7ae1356ae26c64f09. Chain 2 (Bitcoin): anchored in block 960216 (2026-07-30T06:39:12Z), 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/AR8TN2300384.
Tu eres su seguridad - En vivo Teatro Flores
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x515520db44d4fb7678bdba6fd9c40eb296f83900f013228106017d542c6ae1c7. 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/AR8TN2300385.