thumb|Debris still present 10 days after the Joplin tornado struck the city of Joplin, Missouri. Debris (, ) is rubble, wreckage, ruins, litter and discarded garbage/refuse/trash, scattered remains o
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 0xe5dbd2af6b7d6aa832f7d0d555ad84ccca39005ffb032b6cedc6ed061175b93d. 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/31e84098-fe75-4643-bd73-895bff4c8ffe.json and https://artists.proofprofile.net/proofs/artist/31e84098-fe75-4643-bd73-895bff4c8ffe.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 0x96e858b20a2341ecd1e29deba41d72bc72bb076229dcc091c1653e86acec1f9e. 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/CA5KR2164690.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x178920ba3f9996d4ba310cf5d9338ea998bd96b35e26dab8d8b53e1beec58b45. 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/QZP7F2107802.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaf2ba6abd246071c1b5a6438515f228397ed0b669e0a6990a661bfc0138824ac. 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/QZMHK2098152.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdc4ea763a7c20c922607fe0de35dae5198fb6b6ef5889a9f333a941271f26cbf. 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/QZK6J2052265.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc8037a122a491af86d62fd1134e778ab8207682fe94ce6738a07d699dad1191f. 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/GBSMU7640865.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcbba16200aca80529f1fe321a5917f7ebd0b1e08151022581a455df16bf3a04d. 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/GBSMU7018615.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa9b26e79d75957c311bc154da544b2d7a370dbe58575d2bfc8a7bcc19c9bf54b. 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/GB2LD1900083.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x70164bb8f5e92f6cc7cbacb845326da31931b050710f96a00666724591fd4428. 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/US3DF1853639.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2437831eb257eff3b2df45497a29ba740cc3f38896dc5982e0b1af81fb10c67a. 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/GB2LD1800788.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf605f29fed76001eea94074a9ec8824f8dac10dd1a90217fca95f8fe258fda55. 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/GBSMU5046551.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x895b94b28f182cbb9c8e141778ecfe8cd1c987a6b2f2f52f06b687327093ae65. 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/GB2LD1700212.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc8c477d3a93156c8f17553868501400ab1d1b1b8e7872bf3125b4a11b96479e8. 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/GBSMU2170154.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x99d68405c84768642c0da6739f876ee87d4cbfe9d694f7a09e7c652698e27af8. 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/TCACT1629864.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb1aaeed1c38ff9bb5d10858e438bb50487e9a7a0c3f446e3f1d7bfff2c5c9612. 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/GBSMU2828400.
Morgen Ben Ik Vrij (Radio Edit) [feat. Nigel Sean & JiXXX]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9d09424edb65bd0520653968227b385c606ed1c4924884fdca1c54f06b9dc9df. 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/GB2LD2110240.