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 0x6f57089de946c4e49f06ac17c2b089cd6ef6f560026f50ef20e3c37f8e8b52bf. 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/01178001-9464-4e54-aa93-b0e966deef31.json and https://artists.proofprofile.net/proofs/artist/01178001-9464-4e54-aa93-b0e966deef31.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
I Can't Give Up Now (feat. Dj 8 Milli) [Radio Edit]
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 0x2926fdf4149cd68aa75da115b0debe21fb3cc297844b2107697006a89acf0033. 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/ZA82Y2200189.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd57ddf1a3ea85b3797c441d42a0039cb30056b965a1f0d3578329163d18228ac. 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/ZA82Y2300065.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2e358a21f10cf1d52cfe28a1ba402e2c5befb7ba7f96173a934f87e7eb7bad00. 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/ZA82Y2300066.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x99678865729c176cb75dac51310a12ee400aed12e79e0087d5774951cd40a736. 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/ZA82Y2300067.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2926fdf4149cd68aa75da115b0debe21fb3cc297844b2107697006a89acf0033. 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/ZA82Y2200189.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe52650620533f60ce8760ffd6a168a874b1088913f3ca55a3b6a18a039ff5096. 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/ZA82Y2300068.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2b2817c7567195ea2847e46e42b8d32189888b6a9f2cf1cc660f851ec43d254a. Chain 2 (Bitcoin): anchored in block 960236 (2026-07-30T09:37:10Z), 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/ZA82Y2300069.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc9bbe2a1f00b668e218bdfee917e6e1bd5e3d3b1f6981b16dbfd4b52acd35219. Chain 2 (Bitcoin): anchored in block 960106 (2026-07-29T12:41:21Z), 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/ZA82Y2300070.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x79014cab542135352a4253b18ca9f0d4235a29edc63dc3ec28da455fab5624ee. Chain 2 (Bitcoin): anchored in block 960099 (2026-07-29T11:30:20Z), 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/ZA82Y2300071.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb1345c64e9ec838ac51333aabe0487f552e182c786119be84d23427f069235ff. Chain 2 (Bitcoin): anchored in block 960108 (2026-07-29T13:09:35Z), 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/ZA82Y2300072.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5d753e0542599f266907e1369a2d8558cda68878b77f55f2dd917cb38d20d47e. 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/ZA82Y2300073.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe894a3c3800a1cc6fbfff5561920eab7bbb6056c996324ababbc6570339be2b0. 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/ZA82Y2300005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xad37cc2bacee91cbb43f5cecd31b2950265a03cd50ea319b3c7296b3167f31bb. 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/ZA82Y2300008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xde6388cf9e4c5c99113e378b4ed792e8bf3ec74a02115552bbe986481dee15d4. Chain 2 (Bitcoin): anchored in block 960111 (2026-07-29T13:21:01Z), 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/ZA82Y2300006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6977dd9607fedf19dd597c52993ceeebe63612a45486ee57c3755b4475f264fa. 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/ZA82Y2300007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x82d3e6a466f6c5b80c3507b3908a180141fa68d02c55c120e4693001153739ab. 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/ZA82Y2300004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9ce46e60970b9f7cf796950387cefbfa8084dc937355c0a85db459c39610c0bc. Chain 2 (Bitcoin): anchored in block 957819 (2026-07-13T07:53:33Z), 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/ZA82Y2300074.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x76cd751867572b94713376e7b301c141181040c8bfdd39c94e2f84ce0d683430. Chain 2 (Bitcoin): anchored in block 960236 (2026-07-30T09:37:10Z), 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/ZA82Y2300098.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4d974c26185caa219eeabdb9520a5daa5c8cd5824390d3060279a2bda0b48388. Chain 2 (Bitcoin): anchored in block 960268 (2026-07-30T14:53:07Z), 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/ZB7A42500051.