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 0x7ecd14fd1912e73985fb401c4937249e34c74e77aa1a2ec27f8b09742e0575f2. 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/bc9c52a7-5104-46cd-8db7-c4ceb88a9623.json and https://artists.proofprofile.net/proofs/artist/bc9c52a7-5104-46cd-8db7-c4ceb88a9623.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 0x95cbbfb88dd22f6bd180266025aa03c00702c5f14531c0e2f20f38a9c5e18ecb. 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/QZZ8B2316630.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xece445fedb0fbc282ffc866d2e0f3b869bb913f193c5a2a0063776221aab890b. 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/QZWDD2228309.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x89bc2c4c56cd790d232acf7b8579bd2ac30e6688aaf3ca65459939c01f84f102. 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/USUYG1440317.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6a29aa9996a623ac5c395aab0bcbd5451b8330649cd16d349e1d48881d4f73f2. 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/USUYG1440318.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa1ad24d1d6bdc7a7f512f3d21ab1b6f7915718f35955bd9eda4ed714b3485acc. 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/USUYG1440320.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7396f72df47729d30e6933d42f35db087aeab0c46799680cbb92398e5147622b. 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/USUYG1391263.
Power Over Popularity 2: The Second Coming
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2e64a9757984abfec42e1dec220385b7fac7aef326efbd055baea26eeba971ad. 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/USUYG1339799.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd4ecaf90e1b18f3db9fa6f98f7dfe347094b55cf0010fbad3be6a780001484f0. 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/USUYG1339800.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeff45be2dfbc6ad3edfef46d5e34656bb0b899c14cf6357fb171fbd0c1dabb47. 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/USUYG1300435.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x292362ac7dbcd9dd50d5063acbc4a8021e1fa8d611c9fb7564d1f08e0ec48c50. 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/USUYG1288173.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9e52e601dc0209d8170843e3a2fd165f846c8d09196687a0b6d6e7ef946fcb3e. 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/USUYG1288175.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3283edcba0e2dc7202981358af6583ac1fb4d447cca45be5ff9504d504f4fe0e. 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/USUYG1288180.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x940166df6748080f07859b5b85e08cfca0d61f693ecc04d5fb1da31e7258290d. 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/USUYG1244227.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x72d2327d96a38de997a1e932b7d225903802fef9f6919a8519aa771ea14c72c1. 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/USUYG1244228.
Just Right For Me (feat. Savannah Cristina)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x28e389fc3c2117e1e18f61d2b6cd2b88ddf8225870b3094f81d181d6a72e241a. Chain 2 (Bitcoin): anchored in block 959100 (2026-07-22T05:29:55Z), 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/USUYG1244233.
The 4 (Strictly for the Streets 4 Originals)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2aede6973bba9ab7e4fd077732edb49b1c51e408c23165da5b9a0cb1b4798c12. 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/USUYG1184522.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x47e9adb1c8a418c61fd5ac67d0f3bef60d67182f11d102b0e17e05ae7fc91697. 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/USUYG1155042.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb2991ac95c3ccbfbe0d76275023cc04910f48bcb01809b1ae6db478f9c2a0590. 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/USUYG1145237.
I Love This Feeling (feat. Ballgreezy , Lil Dred)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x832fd0b83a8f7b317a5731d7fd14bee015ea498f17fdd519734a09012c130e6c. Chain 2 (Bitcoin): anchored in block 959159 (2026-07-22T20:32:54Z), 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/USUYG1143043.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7143b5fb846fe82ad7820d8622ccd84abc9f3f006aa5892bb695ae6f3cc0ee75. 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/USUYG1131467.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4b8d62c505e5985309c0a71c9543569b10f169784ab14daca18522f217c17671. 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/USUYG1131468.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc943b137f0745c24a0ae733373fe247063689bc7cef7416d0d52813aaf18ead3. 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/USUYG1131469.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2da499985e4f7d35b42d2e87dc0dd17bda17bb9310d4f590e073c7923ef0b4d5. 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/USUYG1131471.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x89fec73b32233f5befb4d0cd25aaa4fded4787c9af70f230ccb70bb8f45915a2. 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/USUYG1131472.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9c4d1864c8201c23b610de98d87fd43fe9650b3deebad42a3dd6ea606791659a. 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/USUYG1131475.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5e18070006a8d3add77fd2481f2333399c645c89c1278b7d542d8a83e52e30f7. 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/USUYG1131476.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7535bf56cf898024f9ec6d1a6a0f8d8200d8252ae2b9c30bfe9105d2ffba9d1e. 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/USUYG1115594.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x81500619920b8c04ab61ad16675df52ea2d1d608178a8eef4486e9a3393d249b. 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/USUYG1111232.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb037a9efc87e3f532f7c00326d9e89a5913d531e7a19def601f551791a1e67a2. 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/USUYG1111242.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x673b965c2220fd5c195930a555a1efb9906f40218c0893c70c69b0a5c05810cf. 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/QZ28R1500007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x983d3672764600c8504abff2aa99203a411139bf743aad2dc83a76e6f9abef46. Chain 2 (Bitcoin): anchored in block 956889 (2026-07-06T06:56:49Z), 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/QZ28R1500009.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x136fe3aa6b45fce38bc8b4cd8f67400286d5303f0eeb3cf904f3db7580d92098. Chain 2 (Bitcoin): anchored in block 959132 (2026-07-22T13:20:46Z), 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/USDY41561168.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3b21de7337d47acb6f7e150f037ed634bdc70a8ec0427d61b9562d66dd3a3b95. Chain 2 (Bitcoin): anchored in block 956889 (2026-07-06T06:56:49Z), 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/USDY41561171.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5774ad5d208c0c5bc841a3160b0f0e26e255422730f926df76e2373564067f7f. 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/USDY41561173.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5a51b807effb1d4e5bcda34803e0e65b8d2325fa86824b4da092ed4b400588cc. 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/USDY41561174.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x68677808306869a17e6887f0ff4dac119bd304adfbaeeaffab2c41e550d97ba5. 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/USDY41561175.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x20e8c6a5257ce2160704c39d4b486740ac365a84032d01d2982f9655486ae969. 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/USDY41561179.
Zombie (feat. Lil Dred, Chad 99 & Sam Sneak)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd3e2a0d6fb2ff666b31b3f1477a5d411d27780c808a6db62aef2209e926c29ae. 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/USDY41561180.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x153f3fe2ae7c1ec91a7e9b9591aa502bf13938a3f9cdd9b278985684b688d25e. 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/USUYG1313338.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb45be0d183b9d753cac3dfba53f41994f6fde799f526c536e915f7434c26d454. 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/USUYG1313350.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x648070e905ad22091890113f882f8da242e24ab7034b1a64a1d814ea7b31d1de. 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/USUYG1386389.