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 0x8f67408207fca65369804c1e08e502f765aa9700773a2567fd0911671e3695d4. Chain 2 (Bitcoin): anchored in block 953423 (2026-06-12T21:20:00Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/ff4cfa96-3d73-4a61-bd01-fd2cdff3df50.json and https://artists.proofprofile.net/proofs/artist/ff4cfa96-3d73-4a61-bd01-fd2cdff3df50.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 0x5d861f76c454ba0c20bf24ed49387d9761c53618e87188eb7c8cfed475500c5b. 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/USANG2130144.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xff67f7e87de953635a02920e05dca28c3cc76eac8cf8e0241feaf3bbf01d9bfb. 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/USANG2014116.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa94185063c3089a04f57b769b33d293057178d05d25d505589728e345c4515a6. 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/ESA011953383.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x08bfaf5100b045199606deec6c205f5f0dcc30dc1b28e95662876b5ab0cbf1ed. 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/ARAE52400079.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc37fe43e79b6093da100f5cf21276178547f1afc8471263b7fa4ff898a9e7725. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/ARAE52400080.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0fc4d13254c2507f9ebbf48ff41c86854448110d4b08606b4a4379c50b947566. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/ARAE52400081.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0c88855209c5db2c32088239951c40344d3231315da5c082a415d7a4a1255b4d. Chain 2 (Bitcoin): anchored in block 956891 (2026-07-06T07:16:32Z), 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/QZTVM2399602.
Mix: Creo En Ti / Tus Cuerdas De Amor / Preciosa Sangre (Adoramos En Cumbia)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2816e28091af31ebc8e30c0d4fb1aa335fd94da57f7133e26ba20206b3117969. 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/AR5UH2301147.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x585e0b769dd3827c93872bae6e6672745648136a529136764c738a8b6762e800. Chain 2 (Bitcoin): anchored in block 957073 (2026-07-07T18:39:05Z), 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/USANG2243618.
Piano y Voz Session #5 Loco por Vernos / Esposa Mia
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcbd18a69b840bf07d296b416b068e0ed1148828971cb99e4c9b39934f2a35f31. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/ARHXW2201257.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6dc0402b029030d56dbbaaaa0892ce72cd82e5785811b0614fb26aa47b2c1fd6. 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/ARHXW2105947.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x16dc8c1a644ca1c9ed185f6254aa703682b642a26f628072615b6d2f102033eb. 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/USANG2114978.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9101108c7fd8bc344f03ec242eb2bf6db7f9dfbe436f366cccf6763a6ac34599. 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/ARHXW2102652.
Te Hago el Amor / Si Te Vas / El Amor Se Fue (En Vivo)
Te Hago el Amor / Si Te Vas / El Amor Se Fue - En Vivo
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9189682d3cb0da775fb64f86a2ea166e65912c497e0ffc0c4d2a04d5a4878427. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/ESA011906262.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc0840da69f9801fc41d5554c28d6405ff33bdb747a81b69086e7820d4d74b4b1. 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/USANG1903972.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x25503ebcbd9671edbad44d97ec5388b9417da4c7750edff020064670d167f7cb. Chain 2 (Bitcoin): anchored in block 957061 (2026-07-21T21:20:36Z), 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/USANG1903969.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x527cd5a23e44be635505e8d8f94b6e275e6f41afd063b19b9143ef4ccab3c399. 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/USANG1903970.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2816e28091af31ebc8e30c0d4fb1aa335fd94da57f7133e26ba20206b3117969. 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/AR5UH2301147.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x585e0b769dd3827c93872bae6e6672745648136a529136764c738a8b6762e800. Chain 2 (Bitcoin): anchored in block 957122 (2026-07-08T03:39:04Z), 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/USANG2243618.
Te Hago el Amor / Si Te Vas / El Amor Se Fue (En vivo)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x73d156843adcf57149907c74cec1c75d37ac3451aa98aaf1b142592bbd291ab2. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/QMFME1548817.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf903ea2103e3c3d501663cc6ab4a43afded47422e54552320322229b16389b64. 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/QMFME1548828.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4c9332ea5ce2ffb0194cf3cd9ffb21a8183020ebfafb89d7ab1f4a66b8889674. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/QMFME1548821.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x253a821607b90b75a0da3552b20669ef299ccbf32bc29bf2dd8d425c7d8a7830. 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/QMFME1548765.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1efbb2bf70223a7fef651130cb066fa7099b612057a93f4dc3b5ad2c503b0d1b. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/QMFME1548816.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd59c6a9e01d2ca83a6c99086283c599760cbf8818565a34347aa74a42c8964fd. 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/QMFME1548820.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7660f9a2db7a30447e7168eb1d1e5a6685c23edb06d802c59f2f7b8b8373e193. 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/QMFME1548819.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd04b991b1701835e4afbd14db24ef918cb2815872979ba0757fc247c8661c42d. Chain 2 (Bitcoin): anchored in block 957061 (2026-07-21T21:42:51Z), 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/QMFME1548764.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x04653e27cd340685daa2510df2e0fb2ec35ef2ce81a36f9f32eaeb5b463fc89f. 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/QMFME1548818.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x449b7f0f4d78e75313a45a7e14b94b2c4cb72bd52851bc624751697b0b570d34. 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/QMFME1548822.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x42a6297cbc9d829193f0f67be643958b8aa61d0061ff76626a4df6bd14811bc5. 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/QMFME1548825.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfce8bd2c58ff4cff6a9837f459075f9497e87c4cd79929bb595c35d13b5c7fe9. 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/QMFME1548823.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa81281762d3e634f558689032a04ab375bce4705f21e797cae8023041a489f7b. Chain 2 (Bitcoin): anchored in block 956351 (2026-07-02T11:38:34Z), 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/QMFME1548773.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x16c1170cbca5a0de0b92d95f02ab9e97a197c65ed9480cadf7ede974a4ddafbf. Chain 2 (Bitcoin): anchored in block 959159 (2026-07-22T20:39:28Z), 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/QMFME1548826.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8e0fb53ce3317dbf6c8501da887acca46df03a7cfc6ee6f826966eacf473c442. 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/QMFME1548824.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x52eee62803ceb6315db1ff8f52f60a8bec242ba2cc7584e68d7591a147ccd310. 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/QMFME1548827.