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 0x6bd7048f221493cc194439219a93ff3ff06b5600e6e900f7d093765c9dfa1e0e. 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/7b4ca81a-1b53-4707-a0fd-3509fc0ee7c6.json and https://artists.proofprofile.net/proofs/artist/7b4ca81a-1b53-4707-a0fd-3509fc0ee7c6.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 0x6bf36dbe6842dd042423596865795988292a7ff088c1a92f224a5e6a9752c2c3. Chain 2 (Bitcoin): anchored in block 958476 (2026-07-18T01:26:56Z), 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/USE831561149.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa9b0b7771ba1b6885e1c3e12f441a7d6e081d8180eb9a1f0c61930bfe9bfac7c. 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/USE831560778.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x073ae9545ed1a34a7292dd493d85ebd3366deb557a9cec3f751c5cf30d66bf6e. Chain 2 (Bitcoin): anchored in block 958541 (2026-07-18T11:37:54Z), 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/USHM21555349.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x87a85ae003765fef56cb2d4c9167313e5266dc875daa171296061db7d59fb6b4. Chain 2 (Bitcoin): anchored in block 959010 (2026-07-21T14:04:17Z), 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/USHM21555350.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdf9dc0c7e6fe60a6409414eb90bb3b297001154e01d2f522762f8db3075e326c. Chain 2 (Bitcoin): anchored in block 958726 (2026-07-19T11:47:20Z), 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/USHM21555351.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x519778477f9e90829e40dfa9e212ea190f26b61e21aecbab75b82b42ce2e14b4. Chain 2 (Bitcoin): anchored in block 958342 (2026-07-17T02:21:21Z), 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/USHM21555353.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3e0a37b97a446cea9d102f9242d9636788094f62247b6bfdb578a1b055b439bc. 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/USHM21555358.
Send My Love (To Your New Lover) (Rock Version)
I Don't Wanna Live Forever (Rock Version)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa81d35fcb20814bba2aadb206b21edf2c884fd5accafc1bcb8d0b47122f00631. Chain 2 (Bitcoin): anchored in block 958153 (2026-07-15T14:06:53Z), 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/QZ22B1760458.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcb550c901624a6d97f9475ccb04774a5c9ff47740a69547f33a6fa9420fd3640. Chain 2 (Bitcoin): anchored in block 958690 (2026-07-19T07:14:39Z), 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/PL75C1800001.