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 0x47ee40bf37c1c90523c7c40df47ffd87791aa71aa03896067c218addd1f90fe5. Chain 2 (Bitcoin): anchored in block 953408 (2026-06-12T19:28:13Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/fcf5c80f-dd7e-4af6-aa70-54d13e225335.json and https://artists.proofprofile.net/proofs/artist/fcf5c80f-dd7e-4af6-aa70-54d13e225335.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 0xa40de23c115a03f1a4b9e754afe75781be1c7363cabea1d42436879eb8c0f8c0. Chain 2 (Bitcoin): anchored in block 958721 (2026-07-19T11:02:33Z), 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/DEH741812204.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd63505000e04046cbe1923cea05e0b32c8df4645acc03362a98a1441cfebb7bd. Chain 2 (Bitcoin): anchored in block 956551 (2026-07-03T21:18:05Z), 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/GBKQU2048756.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2018dd2f61a2282affe641e1c8358eb34c86faa83053c3639d4ff8a49f3f3b2c. 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/DEH742154449.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x00d4446ab44dd75977a2c1fbf1a76003398ca670230e31f7fd383f0bc2a57c19. Chain 2 (Bitcoin): anchored in block 957888 (2026-07-13T17:43:59Z), 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/ITFGO2100125.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3fc3c3aee7e86b880be2573140a7c267ba80cfcbfd12f8b4a4979b1753cb24e0. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), 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/US83Z2212370.
Fleur Du Desert (Incl. Max Tenrom Remix)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x94e149a3a1e0a7c3f6868a7679d3fa0652460b42df9034247c394b718e5a5b94. 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/US83Z2300568.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4e548ac2c8156a43eb4725156c99cb9351d228f83f2d8b03e27c4b8f58b7b1e8. Chain 2 (Bitcoin): anchored in block 957122 (2026-07-08T03:39:04Z), 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/US83Z2300570.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x313a22f7489e4401cd82cff00a62fd93ff24ed6e2b9fb06283f108686d5d6989. 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/US83Z2300571.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd829e458a3f8992aed7bc3cc2e52a09311118eeeaceb21acaeb7a476ab7a13d5. Chain 2 (Bitcoin): anchored in block 956857 (2026-07-06T01:26:17Z), 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/US83Z2314829.
An Se Arnitho Agapi Mou (If I Deny You My Love) (Unreleased Mix)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4ae8035aa67c640d6f6d5b361720083bc6dd0d92dafeb27ceda35bac70054d27. 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/US83Z2464014.
Nebtedi Menien El Hikaya [Ta Mavra Matia Sou]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcd315e9cf66dccdce20decb9b0f008ce9722b57ee299cfc7a1548b744ba5e2fa. Chain 2 (Bitcoin): anchored in block 958726 (2026-07-19T11:47:20Z), 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/US83Z2476627.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1b048de4ee5673b2870f6c6999dfcc40f229f4f85d071eb9c0f3bc3ec0920760. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), 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/US83Z2401484.
Magical Nights With Vasilis Tsitsanis (Remix)
Ta Smyrneika Tragoudia With Pantelis Thalassinos (Remix)
Ta Smyrneika Tragoudia With Pantelis Thalassinos (Remix) - Extended
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x246dce42927682269ab266271665532855a9acbe86c4dd3215215d5b96d14d80. Chain 2 (Bitcoin): anchored in block 956776 (2026-07-05T10:59:37Z), 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/US83Z2421273.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb3e1fa49c4e2b7704d0cc666d381046ae06bf32bc0e392ad1a89d59517d707fb. Chain 2 (Bitcoin): anchored in block 958526 (2026-07-18T09:09:53Z), 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/US83Z2505028.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x428df86184f95a047c6adcac3564e8c38f3c13ce19dd5dbf5ffccb2d41ad4e58. Chain 2 (Bitcoin): anchored in block 956551 (2026-07-03T21:18:05Z), 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/US83Z2513035.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb47ca1b17dfad96be37dc63dae34a13d58f72a1765bb31f5ed39c15844404986. Chain 2 (Bitcoin): anchored in block 958853 (2026-07-20T11:58:08Z), 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/US83Z2525304.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9323c49c9da2bb485748435da4d07c6ef8ec2880ed02887508d9bf3b2a1233b7. Chain 2 (Bitcoin): anchored in block 956422 (2026-07-03T01:01:38Z), 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/US83Z2529450.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd0e5db892a00b24e6fe8c328cd739aea16c762015dd2fd78de99460c14081867. 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/US83Z2557969.
Sto 'Pa Kai Sto Ksanaleo (Elias Fassos & Risk Gr Remix)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7a2c5bef8f788aae2c9acbcf527b8d414fc708f3cc3692e071f82c94012e8e6f. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/FR6F31924270.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2018dd2f61a2282affe641e1c8358eb34c86faa83053c3639d4ff8a49f3f3b2c. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/DEH742154449.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfdf50e686debdc64dcbd28faabb69eef438132313938050cfc567cacf9aab31e. 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/DEH742162867.
Oriental Touch 5 (Compiled by Billy Esteban)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2018dd2f61a2282affe641e1c8358eb34c86faa83053c3639d4ff8a49f3f3b2c. 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/DEH742154449.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5999c15f29d08810246b6d754599928f6caec1d49ff63747bfe6d16a152a2b8c. 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/GBWUL2080590.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4bf02daa4e7d8b32e6e4c841008447f20e0e1be7d65d0a56d2ecb4e2dcdab644. Chain 2 (Bitcoin): anchored in block 960334 (2026-07-31T02:19:15Z), 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/US83Z2121019.
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