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 0x3e37bd4fb4cd1ec483a76d14beecf9dd552915a7678549ff84fcc2693b27520c. Chain 2 (Bitcoin): anchored in block 954667 (2026-06-21T07:29:20Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/dfe89edf-42bc-45a2-a352-511237408c5e.json and https://artists.proofprofile.net/proofs/artist/dfe89edf-42bc-45a2-a352-511237408c5e.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Yin and Yang (Hassan Maroofi, David Charpentier Remix)
3rd Avenue Mixed 002 | Secretly Famous (DJ Mix)
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 0x4338e19b21036713c1ac6c3626e779ded47e8c44a61aaf33cbead5e20edbe3f1. Chain 2 (Bitcoin): anchored in block 960435 (2026-07-31T16:33:26Z), 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/US83Z2345408.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x48559b7a2bd9695449729e5de9e3dabd493d0b43b44c0db598206b0e40a09e59. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/US83Z2469573.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x24142209bf73c2b9f80a0c357c04b5beeba283b17649cbfb7e3f7e6701725eca. Chain 2 (Bitcoin): anchored in block 960294 (2026-07-30T18:46:00Z), 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/US83Z2471091.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa5d00d523dad9585a2a9e6fcc529c294382566e12fb6a59681b37fbfc56e39eb. 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/US83Z2240715.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbd6f94fe91f92c31a6020f9d4c0d08c4251cc1dc03fc62af22e00e6c37b3d23c. Chain 2 (Bitcoin): anchored in block 960291 (2026-07-30T18:23:33Z), 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/US83Z2310359.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x25669846387349d237d0f665a7e50fa793db925fb05d323b688646d86955d343. Chain 2 (Bitcoin): anchored in block 960330 (2026-07-31T00:58:21Z), 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/US83Z2306080.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x878cc4e8668ecb5fe681398217512d4c2b98f2e9a3dc996075171a48245c0545. 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/US83Z2218537.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa2aa9c51ba61e549746c7edf4876ebb5acd3cbdfcfafe43fbf5f6e71a6d7a535. 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/US83Z2309132.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x493b343fdaf0c63a10924639091f73442753336fa930a28cdfedd75580f26f28. 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/US83Z2480691.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5dfd9ff8921ad8c33b858036fa475cbd96fdeba3cfbb8ee1e58ee1a8c91d98b8. 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/US83Z2407687.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x01c79f6e41092cc0f2a3a18d99bdd6c3048409b9340855f7fa9e3cf35b2e1d95. Chain 2 (Bitcoin): anchored in block 960362 (2026-07-31T06:58:00Z), 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/DGA0M2422273.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0f93df5a1af57572eeace927349486f9264964df3fbadea64ebb4be9c2d3aa2b. Chain 2 (Bitcoin): anchored in block 960240 (2026-07-30T09:57:33Z), 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/US83Z2470281.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb443409b76a386da66cad13d9cea30e0ae2538ec3f82a2e35e924e247b90ae60. Chain 2 (Bitcoin): anchored in block 960185 (2026-07-30T01:32:48Z), 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/US83Z2347942.
Can't Really Talk (Hassan Maroofi & David Charpentier Remix)
Manto Radio #12: Journey to the East (DJ Mix)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x65f0184e03d57f300ea943781e67e0b5858c8dc9331596ef458fc2edd68a7d6e. 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/US83Z2203513.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x89fa68a5b1f5bea42c13fe6385b6b8a5b54be8704e404d7d78e6203ccc37f4c3. 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/US83Z2047728.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe48b438dae972b9c1df0c915f6f4bb592219dd4310042325f8be07169e1c4d55. Chain 2 (Bitcoin): anchored in block 960284 (2026-07-30T17:23:26Z), 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/US83Z2021652.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1ba0d741447d66d74c99f07036070876a7aa6580d24e88d8706ef7a74d7affa8. Chain 2 (Bitcoin): anchored in block 960254 (2026-07-30T12:06:10Z), 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/US83Z2112371.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x84c7356fbe5b418c233e0c1e59beb225e45b4901cd94d2ba44a4a0ff7b3805d1. 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/US83Z2141801.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7058c429f663b58f9fa972ee0c57f3eeccbe752d2d33a16843a5020250d29f4a. 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/US83Z2476546.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9e20fe231614f8e05994bbcf6c88392bba19d9a4d9eb297fc2f38bd1ee135b71. Chain 2 (Bitcoin): anchored in block 960327 (2026-07-31T00:26:26Z), 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/US83Z2496789.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x37ce23892075319fc47e2236009b88f44c953efb8e19161c5935a24b5a2b8767. Chain 2 (Bitcoin): anchored in block 960337 (2026-07-31T02:51:48Z), 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/US83Z2499018.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x901ab35cfb8738b7ea3e4f61b23f9ebfaf2136c9af8171641434f65f780d8b86. 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/US83Z2407696.
Without Your Noose - Ruben Karapetyan Remix - Mixed
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xac794ea5167d6fbafebaab7ac64659704606ac42c4fb57b7720965edc072a8ed. 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/US83Z2355770.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe23e92c06c97f9ad8512df282d8398dfe1d2a67f6c6af4491a193af31b6595ab. 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/US83Z2459794.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xae10f1cce256a779f88ce268b88f6ffb45a83501faf5df22089dd84ddb603a80. Chain 2 (Bitcoin): anchored in block 960302 (2026-07-30T20:09:33Z), 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/US83Z2484155.
IDdicted - TONACO & Matt Oliver Remix - Mixed
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x608fae70f46215fd938a8a53df181082058ce2435dc0ec540a4520ea4ad601ae. 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/US83Z2482459.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9a5d83d771c158f21f65f63c532186b4dc649f1ff16e0d08884e7ebe381fe98a. 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/US83Z2476545.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4e05c8355ea1218953df329d3957ffdb69ec038593480bdb562d6cb62c72889f. 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/US83Z2494391.
Divine Eternity - Andre Moret Remix - Mixed
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf7433112ec224ce742f926568c32f1b96ce518f2db513062ef9259383381f9c7. 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/US83Z2494392.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0ca90caed73786aa3c526dbd95a6bb02348cb7352f2fef07f8c6abbc6f7dbebf. 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/US83Z2497621.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf48f1168fba0bfb78a90a9be5d5237be1610a077fbee785326ac5aed9e73a611. 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/US83Z2457251.
Emotional Landscapes - Jiminy Hop Remix - Mixed
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfcc08326eec9e0bcfbbbfcc00d88a57e491e89091534992228f048e7938d6192. Chain 2 (Bitcoin): anchored in block 960376 (2026-07-31T09:09:19Z), 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/US83Z2353214.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x834b2a45b8b1b656b0b5c7d9f822f56fd77fb07f74fc6c529d0299207946a3d4. 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/US83Z2231489.