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 0x7e1fdcca819cc4b35150cf19d2d61365a6e38dbe9ad12801657fd1879dde5628. Chain 2 (Bitcoin): anchored in block 953423 (2026-06-12T21:20:00Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/224b100c-a80a-412b-b6c1-29737ce461a0.json and https://artists.proofprofile.net/proofs/artist/224b100c-a80a-412b-b6c1-29737ce461a0.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 0xa15fcc3d3672f83f5cdf89b018c145201e8dcf90e42861e4dbbae896214d3df2. 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/QZDA52425111.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x630a52247b46da21124dd4966fa4e1cc382e4d790853016d03c19133e95aba4e. 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/UKZGC2401407.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa34a3b06d76ca46b3952a8836ab8ac27246c535f0cdc4cbb572da33d9b0bfa29. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/UKZGC2401408.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x76f697b4584d463859610edb547d831eb821e1ef892955329db0684e6005dc66. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/UKZGC2401409.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0bf9241f5cd66d860f46c7483ee053ba082f761ca4ebb549e6a768f696d75be9. 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/UKZGC2401410.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4c9578bb4dfa1ece62133e7e54261553173fcb8c0cfa25980d44f6c545432c38. 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/UKZGC2401411.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7aa42398a9224c60f1d52e348d43c5606beb6ed066992c12c6ac5a97eb960371. 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/UKZGC2401412.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x68a409aeae7cf852db13db12b2ee5266eb259b6aacbb94fe68cff13f822de33b. 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/UKZGC2401413.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x551cfbb7eb9c502b09dbb636b8b1a3dfe232255d8e3e84a02612e29f421c460c. 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/UKZGC2401414.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4a4cd96fce2916da120aea55366b5c74d72fb9248fdc0b40e1c30536369bd4b8. 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/UKZGC2401415.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x33b88f0b426268cfcdaecc903163ac4602db7000f253185756ce201b925241ba. 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/UKZGC2401416.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9117fae22f9762758d032dcfe4b93bb288c935dd2ec4af49d1df10317241e30b. 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/UKZGC2401417.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x930c3d02cee66164372e653e428c1c74aaa0fe6e48d232df25ad7bd9352dc4df. 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/UKZGC2401418.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x414590807aa81cf4e8ad29e551fde763697d7366bf18cf6b842991980315ff58. 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/QZTB82465587.
Lofi Girl – chill beats for LEGO building
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x029dc326219a7481bb49683484b1c2a0af4c324f1e7b55bdae46f72e845df096. 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/UKZGC2306980.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6ea8dc6a71aac9f898580109a6e9a4d38e6901523a7c8e846ea4d95d5ca72dff. 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/GBKQU2204516.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd67dc66b29fc1bff2533f9abb3cfa97d5bcd55c8cf91c4e26474a0cc1d247088. 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/UKZGC2306827.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x678919b4c6cffac4e35796a18459aacf01d27c779d61c85bcc2903d8347f826e. 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/GBKQU2204506.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcc3714b17b97c7987648b381bfa48396b26a906e45e7ba71df86fa6fb436d7a2. 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/DEQ022391831.
Lofi Girl x Chess.com - Chill beats to play chess to
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x904a019f249a1b7f58013e9b01adc3754af33d9ebc59543fc769217806e6dd4c. 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/UKZGC2309078.