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 0x14a152119d88991b1ac333c9164bf3a879ded5dd24042f4ddbef6ca8167ef2e0. 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/07938d09-9d31-46a4-bfa5-f9fff6cbb1ac.json and https://artists.proofprofile.net/proofs/artist/07938d09-9d31-46a4-bfa5-f9fff6cbb1ac.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 0x8f25c7a88dacb9dda620491b067a2cee9f73784c358250bdfd307befb2113f1d. Chain 2 (Bitcoin): anchored in block 956639 (2026-07-04T11:19:20Z), 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/GBSMU6336938.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3ef9bed2e14f56c52fbdd369a8acbd4f163d495fcb86c13f49c67f0b0e034c91. Chain 2 (Bitcoin): anchored in block 956776 (2026-07-05T10:59:37Z), 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/GBSMU6683852.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xab6d57d46fb7ce12f2192f21ffb15181b4e900577128063923c199260475e550. Chain 2 (Bitcoin): anchored in block 957874 (2026-07-13T15:43:57Z), 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/GBSMU7209815.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1c8adcf3e52fd0cb949ba13d0882fd88df3806c911aaeaebdd58aeaa826afb2b. Chain 2 (Bitcoin): anchored in block 958130 (2026-07-15T11:26:02Z), 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/GBSMU7209817.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x889c3603712913fff4417ae01dbf270d2ce7410f1d895ef56e3f5b9f9e386508. Chain 2 (Bitcoin): anchored in block 958554 (2026-07-18T13:17:01Z), 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/GBSMU7209818.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x89b9e59fbc2c1c3fb48f69b50a83562861eb04ad91ca759c3e138e8cca495951. 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/GBSMU7209819.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x06fd426dee64a16864177f8ea9d147cda525d417890ac9694abe1349b3ac1c3d. 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/GBSMU7209823.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd7d88445c08771d9259ee70677e6b603cebee51538243ef7c7c13f8741ae8024. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), 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/UKZGC2306368.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0fa1f50c2cebc8daa66bb57676d7ddf1f805d89c456e145c0e35f39bc290bd5e. Chain 2 (Bitcoin): anchored in block 956728 (2026-07-05T01:43:49Z), 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/UKZGC2306369.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5ec62b2dfe3c7b83718a5233460e6c3a29162d0add2316723f073a838788d6d3. 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/UKZGC2306372.
Lofi Girl – chill beats for LEGO building
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd201dced0b85ea26e1b755840ceb7ee7c1174102625702b6d8c78f04e50b1973. 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/UKZGC2306951.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf018dee2d19b38d037e6bc52982a606945492e69744e7b59f7a7b5fe8f0dd5e3. 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/GX5MX2241083.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xae773a618c2a64571d56964aafb2ec457e8d027411ce05826dddb5dec39aa276. 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/GX5MX2241084.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd842cad29ff212a788d8a2c866cd690f587d07f088a2ee5600e157a057092324. 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/GX5MX2241085.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3fed2200ec9eb7f60ecfb2e4fa4ee0b3b7a040fdb2bedd697bc25d527432cb51. 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/GX5MX2241086.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd9701e6a0d999bacb523dc3c53165129a0a09dcb0411066d54409bbf38f97120. 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/GX5MX2241087.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x65de16831e6e8151c73c45df06f126d4755d1d48075b8e8c986bdc4b56f2c700. 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/GX5MX2241088.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc4b20716b54158bcd0425e70b01cdf9f04bb3c8768c0285735a58a7fc0a2d87a. 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/GX5MX2241089.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x284fe89baf94cc7fd1485a354634f7c64cca4722c82df7aea21babf3cf2755c6. 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/GX5MX2241090.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3171108344a426f2ed3d69efd063ab1f393e4ff3409f439ca2a061e2d6d569da. 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/GX5MX2241091.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0d88066817691efdfab914ed8a509af1c3da25223b4c094209f8c96dd8e54a03. 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/GX5MX2241092.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x718a442a0ba9f8e5d326cec6e8bd089699da9fe703aee3b25cd302954f658ab4. 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/GX5MX2241093.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x814aeb45fd1a77d6b91d7aa53afa6f861354b69f4ecd73874fd1b9718494fbc7. 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/GX5MX2241094.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x11e905b5f460ecb5b76413d1844cc0a2ae3b660d5fba25ca4fcaf82ebea7313e. 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/QZFZ42026569.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x11b3e96a614b5e4e1b72069c5449d57e63f980251535e0cb6c04d1ebea843135. 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/GBKQU2189455.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe85c191ac449915babcf51faaab93d02fef7cae7401342354b8b247977d7e00a. 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/UKZGC2303308.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc9358c4e68d9ee7dc1a87d578b3f8c1b7cde94761ded72107e34d3dc9b06b1ec. 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/GBKQU2144246.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x91770f4db859d9850fbb821570f72f362c52e6df9f9958052de9f275a73059af. 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/GBKQU2094047.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x11b3e96a614b5e4e1b72069c5449d57e63f980251535e0cb6c04d1ebea843135. 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/GBKQU2189455.