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 0xabe2388f6af2e5814afc73650a4cc230b4cecd352d631f9f8bd291ce41e4bee0. 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/0eeb9047-146a-408d-b0f4-61bb7b85cb79.json and https://artists.proofprofile.net/proofs/artist/0eeb9047-146a-408d-b0f4-61bb7b85cb79.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 0x2849c51c62053e41a7adb127ae6f1c1c81f8708e0f299e6d50582ebc9b1cb3e4. 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/GBSMU5734582.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa898d62b409cf10c054498f7343a8801aec0c38158828b17ec06727725b00fd5. Chain 2 (Bitcoin): anchored in block 958276 (2026-07-16T12:22:47Z), 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/CA5KR2123227.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8322965ec8b92bb7c81a1991e305f956abd220b4e64ac3398bf0c87bc439de6d. Chain 2 (Bitcoin): anchored in block 958563 (2026-07-18T14:29:03Z), 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/CA5KR2123225.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x29a50a48c64f60c6b9ca6ca79387d40b61fbec1ceadafb175c8013eedb07824d. 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/GBSMU7963343.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe0ed529c1b8207daab354451ab03ae9de222d6edacaf78e56b606beeba3729aa. Chain 2 (Bitcoin): anchored in block 956484 (2026-07-03T10:47:44Z), 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/GBSMU8009330.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x129435b0257afe1dd594b065015d7fb786a4faca3f6a12602414bff7b822ae76. 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/CA5KR0019648.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x998f286f6013cf6d5041b38f9fd8f064a353f4aa9e623893fdc5bc3f39325d8a. Chain 2 (Bitcoin): anchored in block 958224 (2026-07-16T02:28:43Z), 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/CA5KR2307668.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x11014d32cedccd5bb54f5681c2ffbd5f92411b673beb4d2d1da9d2953103aa5e. 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/CA5KR2415060.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe88a7ce7b8405671526d85e5135e1f86a9e8afaf4638d6e40b426c5c17b61ce6. Chain 2 (Bitcoin): anchored in block 958196 (2026-07-15T23:04:13Z), 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/QZG2X2404539.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x982a3bcbc9ca7c76f99f0626e40735e52656f44ce24fc01d3154b11540073167. Chain 2 (Bitcoin): anchored in block 958436 (2026-07-17T16:42:22Z), 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/QZG2X2420958.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd00b6997460c4621180c71bd8bdf64f3d68a0f78473562ae6c3419bd21d5220b. 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/QZG2X2401024.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9919c051f5e19ab7a55860cc498d7b28b9b633f81472b41b905ecd845fa33268. 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/MX1761300594.
Que Siga la Fiesta - Alex Martinez Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0a9d11098ac87934ba76dd26b8e1f7fd6544ab1b9f444224edaf09120f0ba40b. Chain 2 (Bitcoin): anchored in block 960455 (2026-07-31T19:53:13Z), 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/GBLFP2316754.
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 0xfaad57e8f76c5c3446f7302a2389ef8e463c6c51d3abbbdb5899574f4c6c40d1. Chain 2 (Bitcoin): anchored in block 960207 (2026-07-30T04:47:22Z), 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/GBLFP2316760.