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 0xf2f7ccb0a26638a311b89a66bd2bb75514da7f8cc0b54438952571d2bc81738d. 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/731dc5bc-e36a-4ee7-80d7-60f6b38d90d4.json and https://artists.proofprofile.net/proofs/artist/731dc5bc-e36a-4ee7-80d7-60f6b38d90d4.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 0x5a01fcc04d79a7712408411b940abe55726703ce4bd30acf36d64161a6353527. Chain 2 (Bitcoin): anchored in block 956560 (2026-07-03T23:28:02Z), 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/GBP4E1500149.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x06008b1c9eb3a78a77eaed8eb5249b46f3c7135d0750452678bef93f835cece6. Chain 2 (Bitcoin): anchored in block 956742 (2026-07-05T05:07:15Z), 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/GBP4E1500150.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa59f9cf97945c35600713530cafc2c6198e412037ef24f665e3a0ddeb2747382. Chain 2 (Bitcoin): anchored in block 958185 (2026-07-15T18:19:04Z), 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/NLRD51509543.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x931a0052318117d7b683fd0fc4b09e8c8eb62404ad05feed2f2b78344ddc928b. Chain 2 (Bitcoin): anchored in block 958706 (2026-07-19T08:50:34Z), 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/NLRD51509544.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x17063eec24a10c24ea6386898441bd932797a271d933961f3be94bbb6a3d65c3. Chain 2 (Bitcoin): anchored in block 958901 (2026-07-20T17:51:16Z), 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/NLRD51509545.
Let's Fly Away Together (feat. LUNA MAY)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa9b32b47409ea889121c7a7fa0c64990231c5cf3b42151f2069e4905997b3f5e. Chain 2 (Bitcoin): anchored in block 958558 (2026-07-18T13:44:16Z), 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/USDM31803501.
Stupid World (feat. Bibi Bourelly) [GANZ Remix]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfc8edee64206bd7594ef0ff0ebcf4649adaadfd5c6dfa6f15d4d9365b4fe5d6d. Chain 2 (Bitcoin): anchored in block 957801 (2026-07-13T04:17:08Z), 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/USDM31911202.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbf7699dd51a01c902f5496e02369d949a014ea563771485dfa5335951646e216. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), 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/UKCTU2507005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7b5907a72f617267f4e36e8ab91c7109f0c1a7d36aad951a21f3220dd186cb0b. 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/UKCTU2507007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6778c0d57c7ca5ba45d2e17df83c39f7469bbddc9db5a8c8f785e0c23ab0185c. 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/AUDCB1600994.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6b0d3c4b8041372fc5e76215c553b84a9c6d1f866dd061134e1a9cc429d937a4. 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/AUUM71402053.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9c201b89a2f1a307993e5f028f1479cabc0a3040e0dd54229103751df17ea105. 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/AUDCB1600995.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x900f697eed279160acba6b2bd579e17589c40eda7a0575f5fe49a23b6584abb6. 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/AUDCB1600996.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x13e536b28ca77bc2a9a867f86eb665507cb0204e828379df7a87a14979a2621f. 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/USDM31805005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0c421187056f34dea7ad95a760923be48d3efc48fc4e7254c31e460828214318. Chain 2 (Bitcoin): anchored in block 956894 (2026-07-06T07:53:57Z), 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/QM24S2107097.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0c4e0964ff6e01597a07a3c905d0822a51f3e1c9f96c534fbef8232ac3726b0c. 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/QZ8QY1800110.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc6dffd04a6956f67493bdb4db5ca7da0935188751f21cd9997414bc7bf9a4714. 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/AUNV01600863.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5f73203bd81e5f6c66196e75533f0d23f0fbfb88ec067c559324f41a2a127a1f. 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/FR2X42288016.