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 0xf15d3b93c36a1b0dcd11c7186281a15bee6614619364b4bd4fef15bd288139cd. Chain 2 (Bitcoin): anchored in block 953408 (2026-06-12T19:28:13Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/c7e0c3d7-b232-445e-a965-5e61928494ea.json and https://artists.proofprofile.net/proofs/artist/c7e0c3d7-b232-445e-a965-5e61928494ea.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 0x22540ef9833ddd428db990df9a7c8557303faa889f7389ee815b6575758f43b9. 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZGLM2323335.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc192a6c7f73ac225f1a16cee2b26b84b10215d1c8ddc1b8f6065afbbe2ef3f62. Chain 2 (Bitcoin): anchored in block 958552 (2026-07-18T13:15:29Z), 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZGLM2323333.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x60d3f489a40d2cc1c2cc13b8f7f6e5ae74164a52331e37cb3d118c8db2c6b9df. 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/QZGLM2323331.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x51c434d7f4b713ea53c625b463cf55b243960cd2efcb5b8103046588c1449cb8. Chain 2 (Bitcoin): anchored in block 958157 (2026-07-15T13:14:32Z), 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/QZGLM2323336.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8f3d5d7317ce4376c071c299628560919b3bdd767f1d9b9e23fc7a65eb0e704a. 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/QZGLM2323332.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6b67c673dfdfb216f9da3f714904252d7aa499b930aaabe343d913ffcbb331c1. 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZGLM2323337.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x57ffa71df9a36fb3d834ada6ddee2618140c3b4ec8859ab6bc3fc1bf0e1f5cc0. Chain 2 (Bitcoin): anchored in block 959051 (2026-07-21T19:48:03Z), 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/QZGLM2323330.
De fiesta con Viry Primera (Live Version)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2f2426414d250194980f8a69ab8cf813ba180c27fcc59ee4a2e3bba91bf3b237. 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/QZWFN2381249.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaf97e25f338e04523705bf8f57a7268aee9f03c70c52192a14713cb2b5279420. Chain 2 (Bitcoin): anchored in block 956396 (2026-07-02T21:01:51Z), 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZWFN2381251.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xac6db6489f01753388c5703776d584f23edf5c33cd838e0a2f4e3ac4602ac09a. 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZWFN2381252.
Dame Chocolate y Te Doy Bombón - En Vivo
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x55ab4f2342cb64cf29588ffb378e082062ba2276e2ce7402a7183fa8b12c88e0. Chain 2 (Bitcoin): anchored in block 958340 (2026-07-17T00:53:26Z), 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/QZWFN2381255.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbe439ddb8b7dc65d295a49c3fdc917e427ca8bf387f8d032b1d3ec9741c6bc9e. Chain 2 (Bitcoin): anchored in block 958673 (2026-07-19T05:38:28Z), 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/US7VG2451797.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9eb724d3c554dca11fce0bc179f5a7397a235081391080287b5936c39907eb24. Chain 2 (Bitcoin): anchored in block 958600 (2026-07-18T19:24:05Z), 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/QZRP52406439.
Popurrí Saca Petróleo: Magdalena / La Burra Tuerta / Que Chulo Meneo / Que Cadereo
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9eb724d3c554dca11fce0bc179f5a7397a235081391080287b5936c39907eb24. Chain 2 (Bitcoin): anchored in block 957661 (2026-07-12T05:37:10Z), 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/QZRP52406439.
Popurri del Recuerdo 1: El Maquech / La Bala / La Rajita de Canela
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x88376834b13a2dbc6fd9512783889b9b1518060a40439257b74ec2f0ab582eac. Chain 2 (Bitcoin): anchored in block 958600 (2026-07-18T19:24:05Z), 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/QZTPX2474887.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa7d66c8645239023004e5d487e573a2c81e6ce7d1d6af1ac779d5a9fcfa86dab. Chain 2 (Bitcoin): anchored in block 959058 (2026-07-21T21:09:36Z), 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZTPX2474889.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb5d4ac57e0dfd416f80ff13156595166751dd3a8747a2ea9aa000f47cd4c5dfc. 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZW9L2447760.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xde63d38e87e3b009850e6fb56e89da2af06c4e4b0439e6f714e2e016358aab63. Chain 2 (Bitcoin): anchored in block 958340 (2026-07-17T00:53:26Z), 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/QZW9L2447762.
Intro + la Tablita / La Güera Salome - En Vivo
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1ff895cf620679b304b0f3a96bfe5704d903886891b92082d1a8ceea9f0be85b. Chain 2 (Bitcoin): anchored in block 956856 (2026-07-06T01:25:57Z), 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/QZW9M2432108.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x46ff3b073dcae1273d36d0720189e3ec979e77e077de0d4363a05023a51f5e33. Chain 2 (Bitcoin): anchored in block 959107 (2026-07-22T07:19:23Z), 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/QZW9M2432098.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x285aa6901a6b3ba2977505a24ee606fb64bb1f65c217166e231b3f0660653e8d. 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/QZGLM2595746.
Trancazos Tropicales: Mango Manila / El Sax Pitador / Maquinolandera / Pelotero a la Bola / La Siembra / El Pájaro Campana
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa9356acd21ff55bc6794273748f28c8c52ee586967a0eb51cd6a53b455e622cd. 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/QZGLS2582464.
Charangas con garra: Charanga Costeña / La Cotorrita / Mal De Rabia
Con Todo el Sabor de Viry Primera (En Vivo)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3c1018baf918aa7d49d11aec80c5a03773b7ef082f8ad55549883468f3ebfe2c. 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/QZNJX2566900.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc872306e97d9ea3145480169a3eefd8c001aa25e835ad7bea0284d2ec44cdf3f. 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/QZNJX2566889.
Tírate un Paso Con Viry Primera - En Vivo
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x47f3bb498cb09f05744b5c342235da2890f85bcc27d9c346d0b4040ff0acc1d3. Chain 2 (Bitcoin): anchored in block 957788 (2026-07-13T02:37:37Z), 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/QZNJX2566890.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf146ac57e46a5bfe34902ff8a6f87d9bb13d67f1bf1de4e7e787133e1c58f60d. Chain 2 (Bitcoin): anchored in block 958612 (2026-07-18T21:29:37Z), 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/QZNJX2566891.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x745369a03eeb778c459cf01217ec78f03be12b3f4e970ee025e24b9928c7d268. Chain 2 (Bitcoin): anchored in block 958860 (2026-07-20T09:58:28Z), 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/QZNJX2566892.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb394d6c098d350b7ca8dde9aba6cfb34cde7ece726f936fddf4dd9bf94bfe469. Chain 2 (Bitcoin): anchored in block 958792 (2026-07-19T22:55:52Z), 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/QZNJX2566893.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5499cbc591501ddb2e08850ead81f0ecab379baea12fbb46be2229a455989c1a. 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/QZNJX2566894.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8dd6ffbfbea91a33148bbc291888d3422951d1a540bdb8a71960a2f5d1dc8e89. 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/QZNJX2566898.