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 0x55c2ec422048abf736a6135087fb93844aaa6d9b5a28f62a449569af734a7645. 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/c6bd3bd0-d080-4b53-829d-95c738c1e3da.json and https://artists.proofprofile.net/proofs/artist/c6bd3bd0-d080-4b53-829d-95c738c1e3da.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 0x2184bb2d49a9b49d4b95d055aaea8c69c7959a538b7e9ef138f88a2b2ff23b1e. Chain 2 (Bitcoin): anchored in block 957084 (2026-07-07T20:41:57Z), 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/GBMEF2001394.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x873f21b9e3f139a9e1e7276b65be6fb5a564a56a8aa00e0ecdbc0eced6b1cbad. 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/GBMEF2001393.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x91edae7c2b6c66af98ac70e0ff4e56ae2e3ff066d53b8a270c84730037a2a561. 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/SE6I32004421.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x268da08f4a687873805c25790764407ff3436c3b7f851d0265c89d20d88322fb. 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/SE6I32004422.
Dr Follows Dance - Night Dreamer D2D Version
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe28c165338f8ff584b2e3c534a9d4cf598ab30a0d9a09d20f496907b5a113408. 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/SE6I32004423.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x58c63078833c6c29fa3df72a4e6dd2963ae3a8a016e7b679a52f049b8e06a040. Chain 2 (Bitcoin): anchored in block 960095 (2026-07-29T11:07:37Z), 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/SE6I32004419.
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 Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6586a1adbb9eb296b2eadeef11af3eb2487b07f22a498856dd3c6daa78b08f56. Chain 2 (Bitcoin): anchored in block 960144 (2026-07-29T21:09:47Z), 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/SE6I32004420.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6b5da31aa468211da85e738926f8eeef34af282d26775356243c57a980eb63af. 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/GBMEF1801097.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x839ab35231cda7607d5348f3c22b4d4ce794bfc24bae564301492d35f80962fa. 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/GBMEF1801098.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1270e18d67748ca1f3badb3c007005db1be701b2f0fd9778100adc3bf0354d21. 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/GBMEF1801099.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x58f6e9e93c303970a4ea00a6b21a05008c74ba358d60b865475d907a9574a7a2. 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/GBMEF1801100.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaa2c8d812bc5fd2d87c643a2f24818707552f586fdb902d5b7893f625795463a. 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/GBMEF1801101.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1058be347fa3b157e8a6190e4586a24b4bc7f14e17a15291f6e7060053c61d02. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/UKEKP1600001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe92a84682179d3c23d713ab29f418cfdced0d7931f73fe48c1a86bc679509365. Chain 2 (Bitcoin): anchored in block 960397 (2026-07-31T12:24:41Z), 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/UKEKP1600002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb0ac059df931002607a8ecb652c381ada84678e8c62f1dd0b8e8caf74baa1942. Chain 2 (Bitcoin): anchored in block 960418 (2026-07-31T15:20:15Z), 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/UKEKP1600003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0273c8411af7d671cc806df6d0bfa861b9f5e4062b7aab85bcb2844d51d6c7c0. 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/GBMEF1701017.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc32180a28268b571bd17a4bb8df865fb7b47e8ac1c2b3f9da022f2c51b9a5dfb. 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/GBMEF1701020.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x23e2edf1713fec4b7aac0a180848596017d824c55ac8bf02e401969732a6e6ab. 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/GBMEF1701015.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xea187875b9ccdaf061bbe02edc0c3211bd562c053b535db795c064d0505d14f4. 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/GBMEF1701016.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x45bbf7122ec70ef555a922066dcc8e23a17477110c618bc32dcf4ddc165dcba7. 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/GBMEF1701019.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd711293d6e69aad81f9cb09b5125fd38b594aa05ff0d4dc72e8e2a61a3220661. 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/GBMEF1701022.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x78479501b871244063dc184cc90636cc2428413014c9400b174b154171d97f31. 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/GBMEF1701021.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x09b3dc44d7fc68296ac38437410dff0f1e640aa260f7a2e6aeffcdf60eacc75f. 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/GBMEF1701018.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc62c75222e23aa8513606a38c355ea4c4d8409152bd6e1473360a714e0f58e91. 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/GBMEF1701023.