1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. Open OTSProofURL → extract Bitcoin block number → must equal OTSBitcoinBlock 3. GET OTSBitcoinBlockVerifyURL → block must exist at that height 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 0xf7852312fc2bbf72728ce693f961015f2c1b167360b05ecc421c63ed273ea600. 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/dbf7bbff-0852-40e7-a6c7-10b651847d37.json and https://artists.proofprofile.net/proofs/artist/dbf7bbff-0852-40e7-a6c7-10b651847d37.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 → block OTSBitcoinBlock must exist at that height 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 0x0b40b592062ce829cedc5de5151910f7c863d80aa14ab42edcd41d831906e2cb. Chain 2 (Bitcoin): anchored in block 957891 (2026-07-13T18:21:04Z), 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/TCABX1441788.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8b24a992c5593bdeefe9fa26ebf4e2a74c77a2056fcf015bbde2283e6d885f98. Chain 2 (Bitcoin): anchored in block 958202 (2026-07-15T23:57:14Z), 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/TCABX1441790.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6d6e35e908f5c3271bbce06c8d2c87e907325a29b4b34be7344f8dd2e3287fd8. Chain 2 (Bitcoin): anchored in block 956841 (2026-07-05T22:14:35Z), 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/TCABX1441791.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc6f6a008a6c5919ff74c731cdca3ac743f5d8827d971061ab4a1bea7dc5c5e36. Chain 2 (Bitcoin): anchored in block 956639 (2026-07-04T11:19:20Z), 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/TCABX1441795.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5dd382e7dcff69ab3e1e3446d18103d80fc9aa8228a89b78669400847988b1b6. Chain 2 (Bitcoin): anchored in block 958194 (2026-07-15T20:32:27Z), 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/TCABX1441797.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4d3ecfbd8c3ca7ed30e7e9bd70c8f87aed2a927724a77f33d8b423485fbdeaf4. Chain 2 (Bitcoin): anchored in block 956790 (2026-07-05T12:31:54Z), 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/TCABX1441798.
Ojala Que la Muerte Llegue en Tránsito Ligero
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1a925b4dd7d73b111d66895bcf8ab4059c7bfa7fa21321b6820293357847248b. Chain 2 (Bitcoin): anchored in block 958377 (2026-07-17T06:48:00Z), 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/US7VG1534373.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0dfb0707669be78fedcf1468f24c7f84b3b06432b09bf6940ced5ff5b1b98763. 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/QZGLS1936388.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x24edb0a78e73d8056e6baabe4a4352d291cab940d8a0fe59921d954831eb642d. Chain 2 (Bitcoin): anchored in block 958228 (2026-07-16T05:25:24Z), 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/QZGLS1936393.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x119fb502b81dd6b8bfda2b9a2d781b4b7b22ff6692666dd14d7ab6a48c95b2fe. Chain 2 (Bitcoin): anchored in block 957892 (2026-07-13T18:21:16Z), 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/QZGLS1936397.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfd7e580e165a4fed17907b55850a4ed67a4b73221952a51e3f18a27f418686cd. Chain 2 (Bitcoin): anchored in block 958142 (2026-07-15T12:39:22Z), 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/QZNJV2114667.
Pedro Y El Lobo Presenta (Live Benefit Compilation)
Martín Delgado Presenta: La Otra Música X Airelibre​.​fm
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8d8a216660455085d6d40f1eb38232ba8bcdc29b9152a89539fd3d8c2d52251b. 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/GBLFP2047079.