1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. Open OTSProofURL → extract Bitcoin block number → must equal OTSBitcoinBlock 3. GET OTSBitcoinBlockVerifyURL → block must exist at that height 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 0x6a19bbd6ca5abf00bd86cf6e27ff884cc4105a1fbf2996642f2654fd29c47524. 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/397b5008-cd23-47ec-b323-eb644aece087.json and https://artists.proofprofile.net/proofs/artist/397b5008-cd23-47ec-b323-eb644aece087.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
{"copyright_id":"0x2ec0225862801a9d1bdae176fd76db390227a1127e3bda5dc2dbd296e645a3ed","isrc":"QZAPG1874654","name":"Ten Seconds of Silence (Intro)","registered_at":"2026-06-20T10:18:44Z","spotify_id":"42H6j3HDGojGaB0xCCOKgH","type":"track"}
1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. GET OTSBitcoinBlockVerifyURL → block OTSBitcoinBlock must exist at that height 3. Read CopyrightID inside OTSCanonicalRecord → must equal the CopyrightID above 4. GET OTSVerificationAPI → pre-computed 6-check result from server 5. If all match: this entity was registered on CopyrightChains at OTSTimestamp, independently verifiable on Bitcoin
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2ec0225862801a9d1bdae176fd76db390227a1127e3bda5dc2dbd296e645a3ed. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/42H6j3HDGojGaB0xCCOKgH.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/42H6j3HDGojGaB0xCCOKgH.
{"copyright_id":"0x05194a4197bef8a1acae923bc5de5213eae1fef2d1ee3bd47b3ea2921bc107f7","isrc":"QZAPG1874655","name":"What Do You Do With the Mad You Feel","registered_at":"2026-06-05T17:47:47Z","spotify_id":"3MZuV03Ee83GYCSDFUlh4g","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x05194a4197bef8a1acae923bc5de5213eae1fef2d1ee3bd47b3ea2921bc107f7. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/3MZuV03Ee83GYCSDFUlh4g.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/3MZuV03Ee83GYCSDFUlh4g.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd74b6ece25d1f55991996b79e99cdc1f181f32e457a5fd82a662f3171fc82c3c. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/2tf06D3Q5wiSowN8Fm63FR.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/2tf06D3Q5wiSowN8Fm63FR.
Human Beings Learn Best and Most from Other Human Beings
{"copyright_id":"0xd1a5f4cb5c204b9fce05e2b3d5f5bed51fff684b0d9615b4014c54585081791d","isrc":"QZAPG1874657","name":"Human Beings Learn Best and Most from Other Human Beings","registered_at":"2026-06-06T12:14:28Z","spotify_id":"1HZ552FFwv8ydigu29DKpk","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd1a5f4cb5c204b9fce05e2b3d5f5bed51fff684b0d9615b4014c54585081791d. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/1HZ552FFwv8ydigu29DKpk.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/1HZ552FFwv8ydigu29DKpk.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x38848208679d65b25b4809fce69ff8f1b3969d105b27c272db8419f6e95b7ea4. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/1UESD2gICamGwN9YYBwF34.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/1UESD2gICamGwN9YYBwF34.
{"copyright_id":"0x227f7be13c59de51c0f59afbe9320be4e25abe4f4e391cf23f357846f9121c1d","isrc":"QZAPG1874659","name":"Neighborhood of Make-Believe","registered_at":"2026-06-08T04:56:34Z","spotify_id":"213OKA3BuR6dRCNIzG0ndE","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x227f7be13c59de51c0f59afbe9320be4e25abe4f4e391cf23f357846f9121c1d. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/213OKA3BuR6dRCNIzG0ndE.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/213OKA3BuR6dRCNIzG0ndE.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x054de6696f31066cbf2d33a559b7e2d1a8bc2444eb34e91e638f9c79ab1e0b97. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/74l23z7CKd6siNe1hMP7Qz.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/74l23z7CKd6siNe1hMP7Qz.
I Am Just So Proud of All of You (Outro)
{"copyright_id":"0xc631152200b0a1bc2bc6d56e6b742d8d8554fc8c99c1206778670135b61c95b1","isrc":"QZAPG1874661","name":"I Am Just So Proud of All of You (Outro)","registered_at":"2026-06-21T07:48:21Z","spotify_id":"4LG9og8TjdCYz4iwgPbTSj","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc631152200b0a1bc2bc6d56e6b742d8d8554fc8c99c1206778670135b61c95b1. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/4LG9og8TjdCYz4iwgPbTSj.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/4LG9og8TjdCYz4iwgPbTSj.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x47c528dd2cb7ff4ec437fd22b78d310a4f5d2e5dba3bd2efc63f69de89e4ee46. Chain 2 (Bitcoin): anchored in block 956383 (2026-07-02T18:11:59Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/0fjk3681frzMvehvyvLWZ7.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/0fjk3681frzMvehvyvLWZ7.
out of sight, out of mind (feat. grayera)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x195ad9561a0bfd95f58273e876b3d1d5474cefee14e7bb89a0e2b401022391a0. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/2zucLhFuF8ezJUlz0pdLPn.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/2zucLhFuF8ezJUlz0pdLPn.
{"copyright_id":"0xdcb4e63f3f6d0d37c963e72bcbf8bef2c593433c2b4aa125b61eadaddc6c9ea5","isrc":"USUYG1488466","name":"growing distance","registered_at":"2026-06-27T11:18:42Z","spotify_id":"7xP0qVadudx9N73SWPIBz6","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdcb4e63f3f6d0d37c963e72bcbf8bef2c593433c2b4aa125b61eadaddc6c9ea5. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/7xP0qVadudx9N73SWPIBz6.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/7xP0qVadudx9N73SWPIBz6.
{"copyright_id":"0x74184d629478515c3f8bc9aad8eacd812fea8bae6186166a03aca2fd93dbd890","isrc":"USUYG1488468","name":"end (feat. BONES)","registered_at":"2026-06-11T17:01:50Z","spotify_id":"0TrdLEajNkd5bZGS7ynJt4","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x74184d629478515c3f8bc9aad8eacd812fea8bae6186166a03aca2fd93dbd890. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/0TrdLEajNkd5bZGS7ynJt4.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/0TrdLEajNkd5bZGS7ynJt4.
you won't get it until it happens to you
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8578d20ccbb8c6884545c47e158680404294a03dde4a1878850994be26f7e1b4. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/0NbCNDFLhUx8J6U1GjGwG4.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/0NbCNDFLhUx8J6U1GjGwG4.