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 0x32a11916ae02cf9e1baf7084d188b61bdef75670f38998a4c98b0618795d472b. 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/4a9a70e0-89df-42b9-b0a4-b33f8a6d6099.json and https://artists.proofprofile.net/proofs/artist/4a9a70e0-89df-42b9-b0a4-b33f8a6d6099.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 0xcf9c13383d6f1bbca09f22270331189b67f0b43235b9efa186270e9226a5fa06. 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/GBKQU2089559.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x18078c92972856102e762a356640364d2043ff598cd00887213f41a6ec29d3fb. 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/ITG5T2000001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x406f5e51f07d6fee8831aae1404b588617514f8426a79d3980991a0568adb9bb. 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/ITG5T2000002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe344cdb4ed643be68e958869bc59188d4b1e3f1d0981c943e47101f2a8004039. 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/ITG5T2000004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0414a7daa8da515863a44a26b5bba3fc69ce4f0eb27ad3718b181f6fde2b61a4. 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/ITG5T2000003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa11b70816473a6816bc343556631f8b819d1cc6d76291854c1c7bafd18b46f1d. 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/ITFGO2300127.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc966f38673b09be6b62233fdaa0732b9e03fe0903937c2d3cb0205c132fa7732. 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/ITFGO2300128.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa930a53d431a3733bbe396b22424e4ae4c16954fc3b5e6cb58c50107cc925280. 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/US83Z2322409.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7942906ae0badc06ee497285eb81a29ae1d364061b56e59b610ad735cd0436c8. 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/GBLV62215079.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3fa57ff30f4007ef27a512d4c63500702b682b5d65f56cbbbc5c5e76f5f93bd1. 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/GBLV62215080.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xef1b9da50b33501331150e213e4b1500240dbb4f212f8f7c2cd9b24ffb06c4bc. 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/GBLV62215082.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x06f35a13c1f893d41d74d55db69e47793e43faca3049a363f248fd8671aae2f2. 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/US83Z2117881.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4649284334ae414e6576f2210fed1bf262b4aaaf1a36b7fabaa17d2cc4734d0b. 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/GBLV61927587.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdf6af015101b1ffb31601762bc429356e6b539d97b46dcc615fda2143ec33c91. 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/GBLV61927588.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdcc9b98a0d873818b7a103370989d9159292a97d1424e2da33ca096548459099. 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/ITJ511900348.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa4dd2c9bf252471d92cfd9b0e178a84f7cdb78ee8157967d79b061bf8edf0179. 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/FR59R1984178.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2238ab39f330c4dc27c85e26974309f462b7ce2447895488291f2ef4734b1a0e. 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/FR59R1984179.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5063779bbed89deece36062b6c9c1a20cb94eb3b4087ebed5c8cdf085bf98d1a. 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/FR59R1984180.
Hades (feat. Jinadu) - [Olivier Giacomotto Remix]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xccd6238db42d16106a479ef2242f103f1f2262d4997df4f73ee4a69c74613ecf. 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/GBHFW1800186.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa11b70816473a6816bc343556631f8b819d1cc6d76291854c1c7bafd18b46f1d. 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/ITFGO2300127.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4427bac573ca99d32ccd4b8f33659ff38f1009ce228ca9061dada3cd8f33d378. 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/GBKQU2075641.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xde5316054814afc664d16ae94e751e107d821ee00ad1a8cdfbc6f64a2d5b3b5e. 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/NLF712105678.