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 0xbb66246988a3c7b10525e37c739e97da020c748db6711b780da91c6f992c3562. 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/045e549a-2e59-4f68-9433-e3d7a3dda833.json and https://artists.proofprofile.net/proofs/artist/045e549a-2e59-4f68-9433-e3d7a3dda833.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 0x348103827dd1be0929f1f6c62159104ebd5e98f67a3b5caac6c826b88b0c4f02. 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/USUYG1404411.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1ac7e5e6c66b203fda6bb8699ecf65d2819c6b91f409ff9611be56f046074879. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/USJI10301372.
Gettin' It (feat. Parliament Funkadelic)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x32fa1073a86a07b239f92dc57a64feb90f363d80fbf3d83b3784c174b3e60ddb. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/USJI10300705.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf5a0701ad165cf6c8cf16e644f371ec49ba580a66adb53a87e7123c6334a5c08. 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/USJI10300706.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x14ca88c24776f2d97f8adccd5b6fe4cbb77ba328afbced6fa610467ec8e6b309. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/USJI10300583.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x295b8af75f271b522ffbcdbc3a7f792f57fa67011b21b8dc32a312be4118861c. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/USJI10300616.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbe571c6a34463d5b6dd4df531017c0fd1179fc48eb221dbc0a1f133f0dff1e93. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/USJI10300707.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbaa7eb1057ec5f99ec9b44af57ac24535a7298217c816ea9cac0ed97a444d305. 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/USJI10300708.
Buy You Some (feat. Erick Sermon, MC Breed & Kool-Ace)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x21045d82534af883c01f2590223d2688f59a2be31506fbeb6f88bdd653af01da. 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/USJI10300593.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x894357b6aa96126334917caec2054f15874ea3ab6c3c186f79d6e623213f9132. 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/USJI10300709.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf7d3e7c98d28a90c55d8e1b8e1a4e5f70bc25f4cbc599c076ef88ea81b066e6d. 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/USJI10300710.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2e38ec81e98f3a1373cff28765408ecabb32c9082d5a07f75f60dfbb91cee840. 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/USJI10300713.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6b0e8715be86beb9d799d0cdb7bd8f851e5730675fcb44f4463513073220c911. 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/USJI10300712.
I've Been Watching You (Move Your Sexy Body) (feat. Parliament Funkadelic & About Face)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x706f7773ecf99a56a407c482111fe363d13cd5874457bfd14fdd78dd9caa30b4. 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/USJI10300714.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcb4450ca65d70751d71215aabff2386479973757810f3ee92edef034c5b38230. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/QZQAY2425429.
Ain't My Girlfriend (feat. Ty Dolla $ign, French Montana, Joyner Lucas, and Jeremih)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa5444397803eb9924b1ef11bbbc5c5bc117d57d5d7205b710e2e6fefa556fd92. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/USUM71310774.
I'm N Luv (Wit A Stripper) 2 (feat. Pimp C, Too $hort, MJG, Twista & Paul Wall) - Tha Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9f3f903dfd4c4007d38690cc61a50e972ba23712792025cc668d3ddfac87443b. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/USJI10600092.
The World Is Filled... (feat. Too Short & Puff Daddy) - 2014 Remaster
Life After Death (2014 Remastered Edition)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0fdc0a71e7ecb9dcc157d4204b771050df81ebfb5093d31449afbd7e55d59e5b. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/USAT21402743.
Silicon Valley (Music from the HBO Original Series)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd68b99c7f37739a0273ef6ab26c73a7547c8df742a7ac203b342517dcdb7e826. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/QM8RL1400444.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7a5ff754c274812c0e4bc2c7628607c605ab3f12497bcfea0a4a2dd456afa543. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/USRC12001477.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x11ae6d8fc3376acf1228acfb4d9f51324743e22758921a2f36ab5a8b7fe56f33. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/USTV10100142.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xebc9663bdabd478a749b27fcefe304756d36b2ec6a9d66cdaf8bec888b0542c2. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/USUM70603469.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfdcdc80145fced6a6bd90801d56b8ecb0fa27a38f9a7c22fcbf307ac6f65b579. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/USUYG1041442.
Rolling Papers (Deluxe 10 Year Anniversary Edition)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6c40e9ad983fb1e129dd5fa3f9afae5b7e1e764ad85611c31e2270f5ae14beeb. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/USAT21100053.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xde81de09082b3db86eeab0753db5d2d9c4cd89dbd47aaec698628414401dd17b. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/USRL19700633.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x27259f744f771b86f9adc5bf1a92dfe1b2d89e5725aeab933da73e7e4916ef6a. 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/QZHNA2583405.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4d313a1b0e83e79c128219b0a9b6bdfe35fb94480f320e9965fc11122a25dbbc. 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/USA371171673.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x44ea2e99ad09c556f52a140bc3fa4300e7fac0396593eeabb6f1b5246df4cf57. 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/USDHM1103912.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcc2b1349a3b1d6691b5df8bea6f66f5856b2395ca8f873c1e50ea4d642852cc0. 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/USRL19800904.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x11ae6d8fc3376acf1228acfb4d9f51324743e22758921a2f36ab5a8b7fe56f33. 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/USTV10100142.