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 0xa097db51fe3cbf375f225c8bdc50ac2823712d2f8b32fabdc76ba60ce90e78db. 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/6696263e-ca2f-46ba-8bc2-bf738fada785.json and https://artists.proofprofile.net/proofs/artist/6696263e-ca2f-46ba-8bc2-bf738fada785.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 0xca2530b1f5933b04be25e46f6899ffcbdde4c24be9b992f4f337c3bc4165ff4c. Chain 2 (Bitcoin): anchored in block 957872 (2026-07-13T15:39:45Z), 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/FR2X41871575.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2bf8c5aae028997d7f98cb9c8fc43dfcc11432588fe9a2f23df8b32dcb036ba9. 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/FR2X41871576.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x947277fa704c983d21b66becaac972acabeb923b015b92c7dee7d2d7eef14b83. 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/DELJ81762262.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x277496af5be496fc386ac1ab68fa2a8b9b4169045e7da3264e8dd60d575f5d9f. Chain 2 (Bitcoin): anchored in block 958383 (2026-07-17T08:20:01Z), 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/FR2X41871579.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf58312cb802c653d0b99b40f9ee4d1e69652cedce0a4b5c22c7fd660cfc27ead. Chain 2 (Bitcoin): anchored in block 958690 (2026-07-19T07:14:39Z), 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/FR2X41871580.
Smokin' on Tha Dro (Mathis Ruffing Club Refixx)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x154a41fe38a31f990dfbf66cf0bc26b2b12bfcc837f9ea54b5428ff747d1d5be. 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/FRX202153328.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8aeafe8abe54af590e723e0fc093c4c21ac2cbd30b6b55774e43b021f3d3efe0. 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/FRX762051321.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa366dc1e26ddbe6fca68753f72d3e4a4c32b6f1b86cb0400cf3a601019c30eaa. 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/FRS182056282.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x297bba06271bca4bbfba39e7570b2accc315753b999fb609d824dda160e805fc. 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/FRX202153330.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x163dcf56e8b563c0623b1de57575381097859c8449def8da0666fc80c2b95339. 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/FR26V2052792.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe384206e04249879d525bb82aa627d4830695ea977ade7e57e0384ce851d6748. Chain 2 (Bitcoin): anchored in block 960250 (2026-07-30T11:13:28Z), 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/FRX202153329.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcd3423f60a8bcb040d6bd4f2ef6dbef77525f3be9f20a6e7877cebbc6dbeb5db. Chain 2 (Bitcoin): anchored in block 960216 (2026-07-30T06:39:12Z), 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/FR10S2169777.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x51bfab17a04bbcb4111e5a9545f75697d89710184bd5605164c4ab5950446721. Chain 2 (Bitcoin): anchored in block 960455 (2026-07-31T19:53:13Z), 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/FRX202153331.
Neighborhood Molch Mane (OG Deluxe Version)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6d7bc5416ff27a9644d805862eea30123bedf528f9d840ab49df0efdaec6a203. Chain 2 (Bitcoin): anchored in block 958137 (2026-07-15T12:20:59Z), 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/FR10S2548194.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa8b6d258ca67c488eb500adfdf2ff13c16cbd178feb1a47e60d0270c443bd296. 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/FR96X2071792.
RETURN TO THE CiTY (Level 7 - du weißt, dass der horror nie endet)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb886bde8d5c62f4d1f402a565a9659604b6b8a8d2863dc9363f88759da11df2a. 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/FRS182024083.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe11d9e14816a526a4b2a7ede0606aad1569a2fa0a1df88586d820be3bfd4e1e6. 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/FRS182024086.
ESCAPE THE CiTY (Level 2 - Alien in Transit)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1dc740a6d9236b82ad9e1153d21ce86f15912814967274f0ae5431b4b9edd612. 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/FR10S2025649.
ESCAPE THE CiTY (Level 1 - asphalt baby)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc30a81ee001cde683d78a5140f9f527d1c6e61a30e4cd5e102e7964005a5da69. 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/FRX281973843.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6a0fec74a9b83e726de553c3e9b8f501bec5a11b26e37cf90dc6a0c92b65db08. 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/DELJ81884620.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3a66af8db3d790f705159e0a6f9e7052ed7a451c23f41c7ea1ccbfe9b85e98b7. 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/DELJ81945519.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9ed6e0081c02e4c9fbdb12f13df4840d1f7d90be980ec1c98cb56c6379972996. 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/CH7811924362.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6cc012d0e71ec4dd4450abac1fed0bb61bee3983e6f63b38aab81f1413e257ae. 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/DEKF21901136.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb76b55c5345b292cabca3244d4c361f16380fcbb16d99a5f3225ad82cff3eb84. 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/QZFZ71985669.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x25ff19d6ec9a097d8a1cd61b7a8c5568e409ab477333c82b896d87bda2e4d016. Chain 2 (Bitcoin): anchored in block 960397 (2026-07-31T12:24:41Z), 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/DEQ022116715.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7de7c320495f0b7df16be5edffa7fcfcaf667e9b98610718640354cfd0104e1a. 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/CH6541957102.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaa213c1c6a4651a2b113b4dafc81f20332b8edda0b929925f038e8c47443d1d1. 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/DELJ81740979.