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 0xcbaad7b268c993adc049704e5a90b1c08aa4643f880cde9cc9d34a72f08f6b5c. 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/378e0790-354e-4d42-a46c-daf84c370730.json and https://artists.proofprofile.net/proofs/artist/378e0790-354e-4d42-a46c-daf84c370730.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 0x54c5be36debb54ac72ceffd93645c2953e7023b040eb3c99dcda456ca985894b. Chain 2 (Bitcoin): anchored in block 958410 (2026-07-17T12:18:07Z), 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/TCACW1607015.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x60c6d442b77e12272b306c9a3d6a06993f1330e375d9a8910803419b2d6e1990. 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/TCACW1607018.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf076529d1e3f70f551a1417f05905b63f60f1159c6d70f7d06b3c34ac9c48e8d. 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/USE7D1800214.
Si Algún Día Te Encuentro (Versión Mariachi)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe66716e6f40c55b25d24078c5040861ff6ea91d5b321e5e364dd3365eccba5d7. 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/USE7D1900174.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x831ffde372de3e8c2382f0bc2e1a7c83031d850b311110bd1a03a8084df7a493. Chain 2 (Bitcoin): anchored in block 958903 (2026-07-20T15:22:45Z), 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/USE7D1900192.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd2de56fd2ea3cca0e85b2a02b96caa99fcd411de1547ce92c8644a98774fd740. 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/USE7D1900276.
Cariñito de Mi Vida - Versión Norteño En Vivo
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x67c6fa64e26ef2cf8cf19be21a263dc54ab80b80e538a47a6afbc6d977b01d37. Chain 2 (Bitcoin): anchored in block 959076 (2026-07-21T23:41:40Z), 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/USE7D1900269.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x08540f47d34d8f481c997cdf55ab7a598d8b83183177787cf1bbb00676d551fa. 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/USE7D1900267.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1775078dd0d446bd2bf4ef222e4ac401c396ecfb7fff20d92fae641eedb492a8. 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/USE7D1900275.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa53b37494eb050a43770f468c77f71717a03316eb201922e8309dfaae49854fe. Chain 2 (Bitcoin): anchored in block 958432 (2026-07-17T15:43:17Z), 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USE7D2200199.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa879f57ef8ad4447b2a88592db774e80afbdf767fd086250139ee3a9dc386ef3. 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/QZXPW2500003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeb47323335468555721ca7e430c9a180eb97a1c9af9b5d428a4137d138a6a9b2. Chain 2 (Bitcoin): anchored in block 958196 (2026-07-15T20:38:50Z), 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/QZXPW2500004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x575f669d5c014f7db3d8191afcf10b5f225c2e7d66296e99c0798488196618a5. Chain 2 (Bitcoin): anchored in block 958146 (2026-07-15T10:33:22Z), 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/QZXPW2500005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7630b39b109ba977dfb6256be0af3d80778bfcb7b10605afff038be79edf59ce. 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/QZXPW2500009.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x453f69a537d0694d4aabe97dcff12517113642bdf422c373843340864b8bcccf. 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/QZXPW2500015.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4b5d39144e12b31b0051c9ea015e613bbb78b8f10609db22746f0fa42bf7f402. 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/QZXPW2500016.
DEL Records Presenta - En Vivo Desde La Finca El Cielo
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfcd1d3c223314d06edbe2c847ac027b3ee8990d236b70410a4f688232a8a296b. 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/USE7D2000024.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x667b77222f7a45e88c1957d513bfdeb47c7f50b8f1e77124f1a8cd6e787be58d. 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/USE7D2000027.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xabc50889612baa42562905d37df63b607c00fde2dcacc4d3c1cf1553c839e423. Chain 2 (Bitcoin): anchored in block 960099 (2026-07-29T11:30:20Z), 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/USE7D2000026.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x21d401e6b8d283e26b9128dca9188c360965e2b4f6f1ee093f70fdab80365b49. Chain 2 (Bitcoin): anchored in block 957064 (2026-07-07T16:43:08Z), 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/USE7D2000025.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3067f2be1536e8b5cc4c31889bf9cbd700005031f94159922d0b9a6316d47987. 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/USE7D1900084.
DEL Records Presenta: Por Causa DEL Amor
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe1dd86fb821f7beae200fd8f0c9e1098e88fcdd82090135d8c62c6d262d0e4c2. Chain 2 (Bitcoin): anchored in block 960410 (2026-07-31T13:50:38Z), 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/USE7D2000082.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x21d401e6b8d283e26b9128dca9188c360965e2b4f6f1ee093f70fdab80365b49. 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/USE7D2000025.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x930b22bcb2aab4013fdb85d2c3ab8a41459d9fe9fffc68d567219fd91e6954bb. 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/USE7D1900154.