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 0xaa2f84d3b3d595f14209c31b4f068fb3b3b961a21cb1a7c3cffebed8565366ee. 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/a21afc9c-44b8-4a06-90b3-0527f69f159b.json and https://artists.proofprofile.net/proofs/artist/a21afc9c-44b8-4a06-90b3-0527f69f159b.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 0xda4f04010d4acfcdd87c25e57f3fc0e92921d9cc5d0eedbba8de75e08a22d870. Chain 2 (Bitcoin): anchored in block 956856 (2026-07-06T01:25:57Z), 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/QZDA82007108.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdf4b7a6f516f75999fe02ab1edb6bf59666e00d39053168b7d521656589f1002. Chain 2 (Bitcoin): anchored in block 958576 (2026-07-18T16:22:28Z), 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/QZDA82007058.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf217c28311c4c34e4f1aa4bc7307f706a41daa43e0b57d2ae4d45d31f8abc28a. Chain 2 (Bitcoin): anchored in block 959023 (2026-07-21T15:22:58Z), 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/QZDA82009600.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xee50d7f7f26dbabc4415bfe4fd97d37ca87189e568a5bf8d14e18ef365220720. Chain 2 (Bitcoin): anchored in block 958517 (2026-07-18T07:54:29Z), 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/QZES52071984.
Original Spanshdrill (Local Scammer) [Spanish Remix]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa0871c55855929ad6ff070a97041cf5f3fc1650e1d3fc71ada36db23a80bb0e0. Chain 2 (Bitcoin): anchored in block 958146 (2026-07-15T10:33:22Z), 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/QZFYW2137583.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb6fe75eab8d1588e119d08bd17a4f23b141da2404947d190dcc8e73b0b9311fc. Chain 2 (Bitcoin): anchored in block 956484 (2026-07-03T10:47:44Z), 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/QZFYZ2171906.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcf5ba0b16cb8d70bf82c526b735ac0b0d323087201034bde09eba4b82f7378c4. 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/QZDA52161815.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1c1a7ff483cd26f7106976f7e265b87dd1290ebec7e1f81d7e4f7ec527b90032. Chain 2 (Bitcoin): anchored in block 958224 (2026-07-16T02:28:43Z), 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/QZES62156058.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x55db69910a880e6f1937051b0f265d2fc31665b7abf498a05064d3e1d063f4be. 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/QZK6M2191421.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2c30aa446f7eae47a2ac9beab9e1fef6bbc308fdf4506ef88ad56ad6d4a212f9. Chain 2 (Bitcoin): anchored in block 958644 (2026-07-19T02:21:25Z), 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/QZK6L2162081.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe81164e2f052b2d100fe4d76730a126441f014794685afaa70f4523161cd2be0. Chain 2 (Bitcoin): anchored in block 958529 (2026-07-18T09:21:41Z), 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/QZFZ32233012.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xde61d5e8ed90bde65887427b691d09cf4777c442a3b60f5a191e31f2d1c15b46. Chain 2 (Bitcoin): anchored in block 958286 (2026-07-16T12:43:37Z), 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/QZFZ72251271.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1a05ee783290af30ab3ac0e3db0008e9e70b0f55cd4e6f12c2368da2c8dd1dda. Chain 2 (Bitcoin): anchored in block 958461 (2026-07-17T23:18:11Z), 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/QZFZ72248773.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb5bfe2ef391f7dd4bec2054c86db47337ba7a4cea129e440cd722ecb90313201. 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/QZDA82230911.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7b49d904f57601937a6f3f427255816307754da42a5df40f0645456ed0501206. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/QZPLS2252130.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6e15539d4b1bcf666f831e13da759069f5d907fb0303a27344e39253de49d8ce. Chain 2 (Bitcoin): anchored in block 959155 (2026-07-22T16:43:41Z), 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/QZTB92226358.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8e558073f274f009a72b69c14ded76518ea7fe3c81bddc85f871122bc9d2844d. Chain 2 (Bitcoin): anchored in block 960247 (2026-07-30T10:42:33Z), 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/QZFYY2319959.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbc79a0950594a2354a34f49253fe6fc4e9509f88acea5f359375995ea4731cb6. 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/QZFZ32381346.
JERSEY BOY (SmokkeBlack & Majinramen Remix)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2df4b022ffbb7c0f5077b5f2b4961426c9fef68c5a37418d1e4896d122b3f00a. 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/QZK6J2322746.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf4570ab7addb53ea4b24a910782e4b88dc271b35ee1214712bbe1b06a50ea607. Chain 2 (Bitcoin): anchored in block 959043 (2026-07-21T18:40:26Z), 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/QZHN32582296.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1508cd415cdc76e5cbb46edac7b43b8d8d38a7524b5b32e718d482fad7dfd134. 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/QZHNA2598024.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x25a6d0105f67a984e788c2a7b1c462af61deef1ecdefcb5d7283f6bcc83b7829. Chain 2 (Bitcoin): anchored in block 959008 (2026-07-21T13:14:05Z), 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/QZMEN2548329.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfb46a4e68e43cc62d26fa430baf44804e830549dc89deb8eeed4d65c0b1e7adf. Chain 2 (Bitcoin): anchored in block 958436 (2026-07-17T16:42:22Z), 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/QZNWV2591149.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4359d83a48bd967154dfb120f750ce43678f9d441d2d38461c2fbde995921ca1. 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/QZNWZ2510153.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x109985d14b56f0e020d99bd98218a0fe05cdc2a688bc0de440c2af7f75b48b7a. 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/QZTB22557948.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8ff359efc3c184e7a935ac0edde0c683aa3cfe254836055ffe80fefa56420047. Chain 2 (Bitcoin): anchored in block 958808 (2026-07-20T02:49:15Z), 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/QT3F92549765.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa24ba0825f86de57ef56d1a54253eb1de55a7665d8b50df8c1d8834a26e4dc41. Chain 2 (Bitcoin): anchored in block 960203 (2026-07-30T03:35:13Z), 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/QZMER2078464.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc3c7dde1a20b7536453131c23bf04575c2b5621a2aa1f6678726701d7292daf6. 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/QZTB32455087.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x060f45c8103bfd1f64b2a94e03514cecf0002899bf3fa0f2e71666199736c0c1. 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/USA2P2247469.