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 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 0x8c4f57e281e145db95d84b6a0faac27b1fc9e77440a71d722963306f4762e668. 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/83395073-88d0-4cc9-8284-f37b502519fc.json and https://artists.proofprofile.net/proofs/artist/83395073-88d0-4cc9-8284-f37b502519fc.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 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 0xee576819930830039b6c63632333c115fc77227529624d8f230fe387d97a5fa6. Chain 2 (Bitcoin): anchored in block 958383 (2026-07-17T08:20:01Z), 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/QZNWZ2118598.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x190783000ba12cc31e95053481f2a05eccc17749173ed2c88bc7c0c3797c49b9. 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/SE5752245923.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x760d40cb0ff8cceeb052e43e4a2cfd806dc3a6bd639db761153a6168bfe8613e. Chain 2 (Bitcoin): anchored in block 958897 (2026-07-20T14:57:46Z), 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/QZK6F2294312.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8e88500b3dc907253969ef1eb6de52ee85075543b4cc2988e31f5e45a178ddaa. 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/SE6XX2278178.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x98d7fc1d345ad87b6b0022ac40f4e52805205e81b15b340f26247ba60486f65a. Chain 2 (Bitcoin): anchored in block 958194 (2026-07-15T20:32:27Z), 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/SE6XY2214593.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xac0e7b254fb00230308e9cb78345fc6c5861bf3eafc58a07db014fa803040d41. Chain 2 (Bitcoin): anchored in block 958234 (2026-07-16T03:46:09Z), 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/SE6XY2264933.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4fc6913c77e793478cd6e2cd86af8b1caf68823b05836c1eb814da96a74d6f31. Chain 2 (Bitcoin): anchored in block 958430 (2026-07-17T15:33:28Z), 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/QZNWV2352699.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdb26a28e2fea3c4baf609b4246bcf977f3d47182f197abd6789a9b1744c9e350. 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/QZTAS2386947.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x56b1b63461ca68b7e7c8df65aa463377fe71363326c21db21c65a3a32efc3f5c. Chain 2 (Bitcoin): anchored in block 958582 (2026-07-18T16:47:25Z), 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/UKZGC2401465.
your words cut me deep cause i thought i was loved
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0e8057dcc882e60185274420db459a30d53acef8f01a24b713ea11f4210bf6ba. Chain 2 (Bitcoin): anchored in block 958596 (2026-07-18T18:42:38Z), 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/QZHN92400978.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x104446acae6fe5fe4695a18d8d077919fb12679425ffc55ee3c18e85ff5c6104. 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/QZMEN2455892.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd904a9e555d0805d9df6641dcedfcacc5b8e1db17899a7fa03d8d52c5fb15644. 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/US3DF2479282.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2d8d70b8e3cb2b87ff7210e93a8b850f047e4f79ae9c60bdc44a66919f5dbf1e. Chain 2 (Bitcoin): anchored in block 958436 (2026-07-17T16:42:22Z), 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/QZZ7N2469993.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x27113e342a7631ebcf795ed8f7711d84148df27cd4bb47931420c5c42232a4ae. Chain 2 (Bitcoin): anchored in block 958324 (2026-07-16T23:42:24Z), 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/QT3EZ2424206.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcbf73dbf43c752dd843e2f1d2832181aebf1627e466e5611462263eefd252971. Chain 2 (Bitcoin): anchored in block 958975 (2026-07-21T08:53:58Z), 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/QZZ7M2504586.