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 0xb9ee9cfc4eddc06b33aad48f18e79961ff6f94db2ccf1bea11094937399d17e0. 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/76fde63f-9a7c-4bd8-821a-336ead23bb8b.json and https://artists.proofprofile.net/proofs/artist/76fde63f-9a7c-4bd8-821a-336ead23bb8b.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 0x74ba52d62ec6bf5423bb723dd3b9440aa7c7979b5eeea55121b21883e405d7df. 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/ES7720900009.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x775009fe30c48bdfc5e224e60f10acd01f8a9581584190d28aedf8c7c9ff8162. 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/ES7720900012.
Romper Room (feat. DJ Disciple & Dru Hepkins)
She Loves 2k13 - Taito Tikaro, Flavio Zarza Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x70cb0810f8e170a4c20d4066449dc46a8c2c7b0e4643be6f05fa32d75f9e31b4. Chain 2 (Bitcoin): anchored in block 958720 (2026-07-19T10:53:46Z), 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/ES5051200653.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2d76699bb959dcce53905417f3519d95536b71dffe45c756246b881bce00c0fe. Chain 2 (Bitcoin): anchored in block 958216 (2026-07-16T00:00:34Z), 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/ES32G1400052.
Generation Love (feat. Dave Vives) [Remixes]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9ff520e8c40245fa21b4998218322d3542022ba6d71d0fd3557676867f88637f. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), 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/ES5051800139.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd602730dd2d2746f8dbe07684aee7c5810ec0fc0f7eec1e58ade586d9b6b6e99. 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/ES5052000021.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd3c5d32f6bbdbf52555a896f5943a6d8fb191916ea9059c1f5fb707efef997ac. Chain 2 (Bitcoin): anchored in block 956728 (2026-07-05T01:43:49Z), 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/NLF712206403.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x10a0216b1d1872e8b8043444a08f9feec333025e081fb613970fec37475c2a1b. Chain 2 (Bitcoin): anchored in block 956637 (2026-07-04T10:56:23Z), 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/FRX452409662.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9899051574dc0102494c9ac668479c7caf17619bfb1d30d3da7ab484ff5c1d5c. Chain 2 (Bitcoin): anchored in block 958444 (2026-07-17T19:12:23Z), 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/GX5MY2486073.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0f6667e50c27a3fb0e8f3daa401bec113401847964bc1cddd6cbc79565f56f2e. 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/GX5MY2451480.
Play Hard (feat. Ne-Yo & Akon) - Albert Neve Remix
Play Hard (feat. Ne-Yo & Akon) [Remixes]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf1ee5f225287f18a651ecefc50587d39100b4c1cb2e33a694b638294d0271cd1. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/GB28K1300004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x858240d5d8c7a7ad778b1776be087877e356155ef1ce485e1ac10c07a3fc43e5. 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/QM6N22296512.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc71278549eacc8e3dde8b2a8fb732b1ece471457bccb4f5625561ae24ea6ad55. 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/CYA111800137.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x893b6c502261dcf2d18ff660a928ce4a35075fc4bee8b78298dd1c460fba7252. Chain 2 (Bitcoin): anchored in block 960236 (2026-07-30T09:37:10Z), 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/CYA111800139.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7b7e69c000415bbdcb39854779a401ee43315d5aaf371ea1640c5c9f7f0dd3a6. Chain 2 (Bitcoin): anchored in block 960273 (2026-07-30T15:42:38Z), 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/CYA111800055.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x80c42d704e2f2cec497603ce5826e3ec21cca7873cfb0a6024cc22077f304936. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/CYA111800056.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcfb0fcd55b9fabf3893840cecb9065038f81ad3b1a5d95dc6c5e77617bd37127. 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/NLS241502825.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb971ec689c3197c45d7b0e310f05f71ba935a0bf95b1c4af87d412d170278a80. 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/NL1ZN2302410.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa196e5e4c52286df2d52cdd9aa158aa356d4a268b1d791657a91c282f58cbeae. Chain 2 (Bitcoin): anchored in block 960478 (2026-07-31T23:30:38Z), 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/NL1ZN2000021.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x28d8c7b108c2454aea01a69ec19a9dad6e4a1c32f0eac8a5d5498f8537361cea. 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/NL1ZN2000191.