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 0x35dcc032cee623f7ce516b70ac407d30770176f290b23c2763aa5a6da4a02d85. Chain 2 (Bitcoin): anchored in block 954553 (2026-06-20T11:51:30Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/abb00a74-9677-4468-a7f7-f500008a78da.json and https://artists.proofprofile.net/proofs/artist/abb00a74-9677-4468-a7f7-f500008a78da.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 0x4022e4e8494fe3a01124e628bb3feccfa58d233f8a7bc19b77cc14a2cb78ce78. 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/USA670400281.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4022e4e8494fe3a01124e628bb3feccfa58d233f8a7bc19b77cc14a2cb78ce78. 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/USA670400281.
Heal My Heart - Brokenears Extended Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4526f51c817d37727b20c03a77d79558fefd0d8ea7fd19744341b7479ca1ebea. Chain 2 (Bitcoin): anchored in block 956349 (2026-07-02T11:34:59Z), 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/USA671900409.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4022e4e8494fe3a01124e628bb3feccfa58d233f8a7bc19b77cc14a2cb78ce78. 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/USA670400281.
Heal My Heart - Marco Anzalone Extended Remix Dub
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x046a586c3494348e3b4d2802158fc857ff6b9f8437d71b41767182f4ff4b2b1f. 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/USA671900475.
Heal My Heart - Kaoz Original Concept Mix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3d8493ca964b075fc12b0e4ee60f0390f478c9391e50d14b27fdbad74e5e39bf. 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/USA670601738.
Heal My Heart - Kaoz Original Concept Mix - Trionisphere Live
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa1b57479ee4156e1711a65f0f3d75bf8d179b58eaa0b0e3beda91c67c1f52cf3. Chain 2 (Bitcoin): anchored in block 960463 (2026-07-31T20:42:35Z), 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/USA670400310.
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 0x4507813be106ca697f52d3dbd49b04691be0f83f865679381c2bf65c928a75a9. Chain 2 (Bitcoin): anchored in block 960448 (2026-07-31T18:48:12Z), 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/NL8FJ2300135.
Heal My Heart - Quentin Harris Black Heart Re-Production
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xefe76cd9593db625bd9d194e97c70f065678c413b28f07a93afe52c3784a837b. 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/USA670601747.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x802a53aeeec5bb299f0a04aaec3a5d70d010ecd9e048304687e382a602f14966. Chain 2 (Bitcoin): anchored in block 960138 (2026-07-29T19:35:34Z), 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/USA670602308.
Heal My Heart - Terrence Parker Re-Edit of Kerri Chandler Big Mix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0b9a2c5d126115daa470256f27ed522984a8ac41a980dc4abb38b824189866fe. Chain 2 (Bitcoin): anchored in block 960459 (2026-07-31T20:22:46Z), 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/USA671500009.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x55015d12a7f8acca21eb16bac96f488690e43270bdef38bba10930d0c699adc1. 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/USA671900410.
Heal My Heart - Kyle Kim Back to the 80's Mix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x81fe98803600bdedfc871d15a8843898616473dba0d64db3e156e58964657153. 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/USA671900411.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdc06623a3108c1e6527d0dfa38a01b94d447e4368be06b68f7de3596a0aa8b8f. Chain 2 (Bitcoin): anchored in block 960348 (2026-07-31T05:17:02Z), 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/USA670602038.