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 0xdff2789af45415b8ca155c05b516dae0dcfcfe4fdced0b98ef03e0d8fe2cdee1. 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/bd8c7605-cda5-4f6c-872b-68094ff8cab0.json and https://artists.proofprofile.net/proofs/artist/bd8c7605-cda5-4f6c-872b-68094ff8cab0.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 0xa950f614fdc2a34a978fedb41fd4f3fad8e1a1ece393a4bfe7f11d49db7f3acd. Chain 2 (Bitcoin): anchored in block 956476 (2026-07-03T09:04:44Z), 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/GBLFP1802377.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x82cfc8759a2d02fe0d9cc419b7bf9b955d0fe71fdd4db79955cf73ce45ebbc4d. Chain 2 (Bitcoin): anchored in block 958544 (2026-07-18T12:14:37Z), 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/GBLFP1802378.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6859a4d3951c220c455ea3f59fd03616d09d445e4451d0f2c6b366dba61372c1. Chain 2 (Bitcoin): anchored in block 958857 (2026-07-20T09:45:25Z), 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/GBMA21905806.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8df4690ad4d69bc181686b3aeb9dc359605d6866bfba9cf2243dce8a8dc48355. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/GB8KE1953233.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x04e8f1bc482544cccf345ac9df3c4b2d9245c30ac69214cb0027e0b99b0f6242. Chain 2 (Bitcoin): anchored in block 958520 (2026-07-18T08:19:09Z), 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/GBMA22080046.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3955b535b10360dd768661c9bfedaeacfb93d05b569eac3366d823b384d19358. Chain 2 (Bitcoin): anchored in block 958897 (2026-07-20T16:27:23Z), 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/UKXN22080074.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x812cfb0f09f6471e8f4416e9bfab0c3f854cb1fcd4d613b257371fe593639cdc. Chain 2 (Bitcoin): anchored in block 956656 (2026-07-04T14:03:39Z), 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/GBLFP2171372.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x500fa4460f00edd9ab0194b08a6ea7c272fb31b191eaf27aadd5a5e73f14dfd0. Chain 2 (Bitcoin): anchored in block 958510 (2026-07-18T06:38:22Z), 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/GBLFP2168126.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe0b888d522d21d73f5d2c2dc0cf7277574bcb1eea74084e56189d47684f57355. Chain 2 (Bitcoin): anchored in block 957882 (2026-07-13T16:48:10Z), 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/GBLFP2168128.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xde519d4a1c9edd06dd7836481a0f81204e614967929e023c1107457da1f776ee. Chain 2 (Bitcoin): anchored in block 958316 (2026-07-16T21:38:30Z), 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/GBMA22182642.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5c318c8623029a5aad5f741ccb54bfe4deb1b3e7c6174d9fe5c87435b6b263fb. Chain 2 (Bitcoin): anchored in block 958363 (2026-07-17T04:34:46Z), 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/GX3Q92004011.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc4c37a79f54b8b3752da30887277193e0b805305f17178c5ddcec47b5d71a2c8. Chain 2 (Bitcoin): anchored in block 959015 (2026-07-21T16:43:22Z), 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/GX3Q92083976.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x866606fca2a1352324fdd8782de86aafa5155ae45471ce817a82af506bc53156. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/QZK6F2266253.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf50d9e71a995211da71af099b18b2c9b50d50f5f178bd4dc991cb937458915df. Chain 2 (Bitcoin): anchored in block 958180 (2026-07-15T20:47:27Z), 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/QZDA62339565.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5fbb6e731c06a9cd40413d5c52f265a745a843b53c08c3ead8e746768472c536. Chain 2 (Bitcoin): anchored in block 959009 (2026-07-21T13:14:47Z), 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/QZDA62339566.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc24fd7e53287a2636930f17a690eab97fbb79963e9c187d0eaa1c7dfb12e50c3. Chain 2 (Bitcoin): anchored in block 958194 (2026-07-15T20:32:27Z), 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/QZDA62339567.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x40ce4fc6bc581f667a8fadda413c24a12b8644cadd2b2a5a64b91faa0850ceee. Chain 2 (Bitcoin): anchored in block 958822 (2026-07-20T07:21:00Z), 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/UKXN22302680.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3d2e6ee3a8c01101f37bac1c3316905b7529fe8ddbcd4e0b514f5163d98d76b5. 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/GBKQU2548376.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x005f5cebcce32cfdb365a172c08237e634aa9364dddf70faf93c9f172982a8cd. Chain 2 (Bitcoin): anchored in block 958110 (2026-07-15T06:57:12Z), 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/GBKQU2548377.
Dapper Dan - Continental GT & Hitty Remix
Dapper Dan (Continental GT & Hitty Remix)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf6647c4ac7a6731fbf61df8ff243a19145311e03e225698ec984f4ce7d4ab532. 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/QM6N22214716.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe90a04207d81b6f10aa353fe46004ab1036ccc964fdbba53f30911b4754c64de. 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/GBUM72402636.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x26e7ba261ef74957f4ec30df622718699bd978aeaa4415a7cf15b5d7a760be89. 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/GBCEN2400211.