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 0x6606123b4cf0415d6c8ec4d63c841e98fe5681878f36b78046fe5e3acab764e2. 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/8bd5c3e7-7117-42a0-8e2e-326805b203b0.json and https://artists.proofprofile.net/proofs/artist/8bd5c3e7-7117-42a0-8e2e-326805b203b0.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 0x992126810ee18de2e46dbcd3c3c485e1b478a0a7692287b5971387ec097056ed. Chain 2 (Bitcoin): anchored in block 958350 (2026-07-17T04:09:43Z), 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/GBKPL1951071.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x15fc21ac3efe8500074d9742784f1381a7faa131e466a71263514218f222a97a. Chain 2 (Bitcoin): anchored in block 957745 (2026-07-12T19:20:20Z), 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/GBKPL1829122.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe98aeef8f7086e263169f325242c3f4e3f03c9e18136ec7237ee705bcaa53ca6. Chain 2 (Bitcoin): anchored in block 956484 (2026-07-03T10:47:44Z), 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/GBKPL1951072.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe055c5963a53bee22bab3b6e328814c148a623bb1974224b352e494061d3cf66. Chain 2 (Bitcoin): anchored in block 958711 (2026-07-19T09:26:32Z), 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/GBKPL1942651.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x758559b317d7b43e90dfa432ef38af6038e7b5d2e8d809c8ba6fc8c7ce109f90. 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/UKQC91910001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x97233c9989289fa081b49acaded7fe55e141fc7cc771f4765e99114750a09bc5. Chain 2 (Bitcoin): anchored in block 958316 (2026-07-16T21:55:05Z), 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/UKQC92110002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x60f5cffdc6110b2f5981042c44aeccb89e3615e1728e00109e0e95c31d6b17f0. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), 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/UKQC92110003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x40e63aa40eb7e6b450c5abe0240b7fc201b64328d48f82dc2ec14e928073a8d5. Chain 2 (Bitcoin): anchored in block 958256 (2026-07-16T07:22:18Z), 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/UKQC92110004.
What Are You Doing The Rest Of Your Life
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3f4700daa70fe2cb7543f0f437f372bee326c03385a909cda04825c0cab676b7. Chain 2 (Bitcoin): anchored in block 956402 (2026-07-17T02:26:34Z), 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/UKQC92410006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x63da483bf21cd5613cdde9a4bbe7354130368b82ceebdbc9d40fa17254b8d45c. Chain 2 (Bitcoin): anchored in block 957741 (2026-07-12T18:30:59Z), 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/UKQC92410008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x069285ceb2d76b61e4fa5b8612825dc0fe653e24a826a2d1d6f2ee9cc5c4aa4e. Chain 2 (Bitcoin): anchored in block 957852 (2026-07-13T11:25:45Z), 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/UKQC92410009.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x766f648a2def7192a0126bb5324c229bcfff24b1499ee3c78c692177c172332b. Chain 2 (Bitcoin): anchored in block 956551 (2026-07-03T21:18:05Z), 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/UKQC92510003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x993b5e4e62d1e4007eda3ade2fa4f750b04785808e97b15acc5603aedbf2efa5. Chain 2 (Bitcoin): anchored in block 958607 (2026-07-18T21:01:11Z), 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/UKQC92510001.