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 0xd804db8e865e5a9541f2a789f6bee19359dbb4d091b834ad942071a180ce9efb. 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/4d52f570-7722-47ad-ac8d-d7067eafc6f6.json and https://artists.proofprofile.net/proofs/artist/4d52f570-7722-47ad-ac8d-d7067eafc6f6.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 0x6121535bcb899e6d7def0450fd5707095bcbe557ae0fbcfcf4396f2ae2120f51. 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/USDHM1400998.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x84b51bb90686072403468c7f6304dd22d623fb6b848a1032b6b58d5f1c9fdb60. 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/USDHM1400999.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe19c2ec173443fb94282da98d72c08e5b339e918559c6ce22f25c89abd2ab573. 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/USDHM1401000.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0fb0462e6033e725b79e923f96f30a836d5f1a4e1277e680a8e5422fe913f059. 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/USDHM1401001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7c58e87f5bab4362ab972edfd45318e3abbf7b70880effc91ebf82ff7f52e02d. 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/USDHM1401002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x329d22615febd9ce72fad697bd7f0aaebf0c57551dfec66f6352b4a3fa3fa6c9. 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/USDHM1401003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0a70a40ddd89c23f73cd591c3cafeb0ab3530d962cb6f978b2515bfe55cb40df. 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/USDHM1401004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf3fd52159edbac3ce7decf86802c63bbbb46fe5e6742ad8ea54f695372a83982. 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/USDHM1401005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x46f3206386c8245e0b75b326b88f1491d432a9471ac348ca69ab0d57645c56da. 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/USDHM1401006.
Dazed from the Dazzle of Decadence and Constantly Reminded of Death
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6675dc7515c7cf59af9acadb1eda9fff0319dd87dbf5fafbe692666b35ad36dc. 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/USDHM1401007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x10e2157694e6b7566cbce35baed84082fb75d8763b7cf4f66092f402cdeb8d3c. 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/USDHM1401008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x43806a57ab2432c617d3c3b85f1aa6be639c126ecc2b3ba20538100eb1d525eb. 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/USDHM1401009.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2dbd5c3522f7edb663e7f0d6573af47967057f4cbdd130e5a72a33247a2d4977. 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/USDHM1401010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc29c8f0597a0d4ccd05b24ec707d1491ab1a033dc514095dc5c0253a791a7d68. 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/USDHM1401011.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0776204a4a47728cde1d6e6921040736c85276d85ec6a500e9ae7bc6997a8be4. 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/USDHM1401012.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x54011d1daf99395406f8d3edd10ecf6aeda973fc134a0b22827b177ee5ae535f. 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/USDHM1401013.