Rafael Orozco could refer to: Rafael Orozco (pianist) (1946–1996), Spanish classical pianist Rafael Orozco Maestre (1954–1992), Colombian vallenato singer Rafael Orozco (footballer) (1922–2015), Mexic
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 0x35bd8cb08dc1f4033210b096632572261a778338a8ea7d8d8734ff0919d4458e. 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/2a5a4cdf-0291-4f95-83da-8d81c5175bc6.json and https://artists.proofprofile.net/proofs/artist/2a5a4cdf-0291-4f95-83da-8d81c5175bc6.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
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x36de95f641d7ae0225572b12f9c3ac37a5452859ce8650d83c4c368eec1b86da. 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/QZNWV2530221.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x80a0ed6f4afb16cb0893abd3e470ee7193e24f17e699b24b1837e4bdf34b3961. Chain 2 (Bitcoin): anchored in block 958468 (2026-07-18T00:27:51Z), 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/QZNWV2530229.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc4ec1f25530f4e7775315126a7f5e3c3951c458efa4f510f55d93cb4d75acd91. Chain 2 (Bitcoin): anchored in block 958473 (2026-07-18T00:52:36Z), 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/QZNWV2530232.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x67dce7c470275b622381721391f8e76d9ed64a047cddc2cf61e35ca97abdb767. Chain 2 (Bitcoin): anchored in block 956474 (2026-07-03T08:56:35Z), 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZNWV2530235.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf9e8cd549cd1715e355203e5492874478f5da63c2800651ea4fa752b71620186. 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/QZNWV2530236.
Valois Recordings of Rafael Orozco: Favorite Piano Pieces
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfa9c14e4699da1135369c66720e8cc8e631387aeb627853452233bcccfb27860. Chain 2 (Bitcoin): anchored in block 957801 (2026-07-13T04:17:08Z), 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/TCAJJ2545392.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc776c5fb5ea1a8852e14a798f810ce021a7ae8710aae02ee915bec2060d0fafb. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/TCAJJ2545399.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x44d36d6a2ce95d6987f2cd953a771c4618ee5cb719a4d083278413a4bac266d7. Chain 2 (Bitcoin): anchored in block 956422 (2026-07-03T01:01:38Z), 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/TCAJJ2545407.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x55764f6ff9d3ac4f3b96358c8551fcb87b1c5886bdd0a92fa13f4c7b2886a03c. Chain 2 (Bitcoin): anchored in block 958169 (2026-07-15T16:16:18Z), 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/TCAJJ2545416.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf518356f7379f8f9c306c2f26d0f5aefef4c248f961209c7e23904f16cdc65af. Chain 2 (Bitcoin): anchored in block 958316 (2026-07-16T21:35:46Z), 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/TCAJJ2545417.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe7b00d8b0f39301c48d6f6a7a037a2087a9205e092de1288138d5823223e031d. Chain 2 (Bitcoin): anchored in block 956474 (2026-07-03T08:56:35Z), 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/TCAJJ2545424.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x89878dfe5fe72d228f17062408e2dc1f0fc45ed7207cb3c21b2d88aacf06180c. Chain 2 (Bitcoin): anchored in block 958176 (2026-07-15T19:10:58Z), 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/TCAJJ2545426.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x707c30739fc9dbf7ec8171febe4a7e21a8995e8e604ab09810b3798111bf2d26. Chain 2 (Bitcoin): anchored in block 956776 (2026-07-05T10:59:37Z), 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/TCAJJ2545431.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5ad17ed3c67a2ae77504691395db993fd4f0bd8231074ed33b9ea51391716c60. Chain 2 (Bitcoin): anchored in block 957874 (2026-07-13T15:43:57Z), 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/TCAJJ2545440.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf7779f7164dcdf6c1f4de18a8de8ad2c5cb714ddd699507c4775a736ecb3519b. Chain 2 (Bitcoin): anchored in block 958271 (2026-07-16T09:16:54Z), 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/TCAJJ2545444.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x70c09df6df5473dcf27da1a572ec5a81ff9e99a56f8ce274ee39ba3d12fe904f. Chain 2 (Bitcoin): anchored in block 956422 (2026-07-03T01:01:38Z), 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/TCAJJ2545451.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x276cc2ed470fe5138d2076d11bcf8fc7c27be4166e362636d4f47bbd18f1006f. Chain 2 (Bitcoin): anchored in block 956422 (2026-07-03T01:01:38Z), 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/TCAJJ2545463.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2d24e1d868479645e78e28edf595ba486c2d42c547cfd0a17446bd6d017ffd3a. Chain 2 (Bitcoin): anchored in block 958212 (2026-07-16T02:00:48Z), 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/TCAJJ2545472.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x081aefe0a3eabc14b5b6dfc145c5def14e525ed71a530a5419e060339cee7eb0. Chain 2 (Bitcoin): anchored in block 957874 (2026-07-13T15:43:57Z), 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/TCAJJ2545483.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x901324012065f545a3cec8d72d7d36a31e457b38e4f9275306a2018631b4cd24. Chain 2 (Bitcoin): anchored in block 957872 (2026-07-13T15:39:45Z), 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/TCAJK2545495.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7e234c6ac06184605bfdcfddb9c5b3d9b2a4602aeccf4969c7f3ceff434b281b. Chain 2 (Bitcoin): anchored in block 958316 (2026-07-16T19:42:29Z), 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/TCAJJ2545507.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb690c308d891dcf4851a183402b8133304baa09923d1e771dde8978506941f3f. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/TCAJJ2545514.
Noches en los jardines de España, for Piano and Orchestra, G. 49: II. Danza lejana
Albéniz, Falla, Poulenc, Ravel, Rodrigo & Satie: Paris Barcelone - From Gaudi to Miro
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0738bf00ca3d2463cfa23fb78784c489d47b765013c699c74e385e327e8c30e0. 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/FRZ130889050.
Chopin: 12 Études, Op. 10: No. 3 in E Major "Tristesse"
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7067c8b9e34d5ef8e7025344b88447298baacb7230c95c42cec7b081393e106d. 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/FRZ112000351.
Suite espagnole for Piano, Op. 47: No. 5, Asturias (Leyenda)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2356b157ebb456b61022037a8af7dfc328424f44cf2338516c1883d7aebfab08. 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/FRZ139210310.
Cançó i Dansa No. 6 in E-Flat Minor for Piano (Cantabile espressivo - Ritmado)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa34174fad6c2ecde225a0fc19be62f88d3df7d260dbd4c21b43a1dfcaafcc2c4. 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/FRZ139310720.
12 Spanish Dances for Piano, Op. 37: No. 5 in E Minor, Andantino quasi allegretto, "Andaluza"
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x69747075e90ca2658004bcec32666d1d2ee9b6257fcdcf061405c980416b00a3. Chain 2 (Bitcoin): anchored in block 956349 (2026-07-02T11:34:59Z), 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/FRZ139310710.
Piano Concerto No. 1 in B-Flat Minor, Op. 23: III. Allegro con fuoco
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7f4448b2e25a993521491a91fcc16f5ad1aac1ea68c24bff023180feabbea379. 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/NLA507400695.
Cantos de España, Op. 232: No. 5, Seguidillas
España: Albéniz, Falla, Gerhard, Granados, Rodrigo
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9e61b1dbcdc819511e6e94d2697163a1fef2072bc8742ec2f4fce51028ca0be8. 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/FRX201662634.
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
Ibéria, Book 1: No. 1, Evocación in A-Flat Minor/Major
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x92ecc2dca864b4edfb22e1e0022ccabb2fffdeacc114f2d31dc501ff7af6c285. Chain 2 (Bitcoin): anchored in block 960334 (2026-07-31T02:19:15Z), 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/FRZ130889020.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd9b52320946f173867291b1c7bf1925a3227670d2977932ee001d9d0303af54a. Chain 2 (Bitcoin): anchored in block 960321 (2026-07-30T22:27:30Z), 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/FRX201662636.
Piano Concerto No. 1 in B-Flat Minor, Op. 23: I. Allegro non troppo e molto maestoso - Allegro con spirito
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5c5d5e3c80f44d5fd3b2fc8e79a82e26b627051561c479a6c815df40e820dca4. 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/NLA507400693.
Piano Concerto No. 1 in B-Flat Minor, Op. 23: II. Andantino semplice
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x333485b78f923ea4e5e598b4c97a94c45a75b462d54cffdb0b9b858a0c92586c. Chain 2 (Bitcoin): anchored in block 960317 (2026-07-30T21:35:24Z), 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/NLA507400694.