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 0xe4db39ba760fbfe8709acbb049d5aa9e3b4b5ecb659d426aa1c9683fbae891a6. Chain 2 (Bitcoin): anchored in block 953827 (2026-06-15T19:59:56Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/e2e85d87-f9c0-462f-a0a7-88ace94e0723.json and https://artists.proofprofile.net/proofs/artist/e2e85d87-f9c0-462f-a0a7-88ace94e0723.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 0x982a550a1a4bc6844baaaa90d409a01a3e4e7ebe271d1e2df8343f7b29f33c88. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/HUA320800433.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbf63d6055ac924edb9f7938e0eafc3b2a925668276529714d0ffbc258cd2c1a5. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/HUA320800434.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe987df52404f05c84ca415521b8651f643fd263b9e1e84937b2a5d119c796f81. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/HUA320800439.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa351024c018c0c3ba529337374d3dd780480f4457146caf5625fae7733d6be2b. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/HUA320800441.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x975bbe790a8fd513b0f75687c455cd2bfcd3333feb80f7ce0facdb29dfdb576c. 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/HUA320800442.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4f8d02640becd25af0b2673f79040e9dbfdfa92b0e090f570210ab5bdc6f6459. Chain 2 (Bitcoin): anchored in block 960348 (2026-07-31T05:17:02Z), 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/HUA320800437.
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 0x83983024a12713057b59e634439b3cc30086f6adec70b3f9403ddec1e048d89c. Chain 2 (Bitcoin): anchored in block 960259 (2026-07-30T12:51:24Z), 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/HUA320800445.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x36184f94c94d18666a3261e5a81c3d719a103a0746f8773641d2842b75edbb87. Chain 2 (Bitcoin): anchored in block 960481 (2026-07-31T23:51:35Z), 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/HUA320800450.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x24b50bd49b04262ec0958b1f0c53a912997c7be957a31064ed352575de3d136c. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/HUAC60700130.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x73234d7d820c7b116f4fa7033592fd0ee4743e8db0f06ad072ecab1b5de5e751. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/HUAC60700135.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5c8645d77281bd09ea721db2e29eafa4f989cbd2a4c69b8ec362a29576a990e8. 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/HUAC60700137.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6055e48ddac60e11751a6c855d710b60257cd338af50b4f1fcd2f329c9d23abc. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/HUUM70700304.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x547e4a9c127b9336344676cb96fe50297eb8f230d40f24da0f421523010a2627. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/HUUM70700306.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x882125ef4fb0ed35991401cbb793a9430888e2874e14528388b5fd09a073ca0c. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/HUUM70700309.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2e6ac77eaa2c3726f98669277a6e2b2ad651db45002569ea556eba9d182d08a2. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/HUUM70700313.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8887b334cfa81918ce9549954df6f62ea0c6e5e8958bdf949d127ea9a35628fa. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/HUUM70700314.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x551282f7e27e3a18e529123b8c5f3e0ebda4259e0ce64810b0b82d8e11e91e94. Chain 2 (Bitcoin): anchored in block 960321 (2026-07-30T22:27:30Z), 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/HUUM70700300.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x982bd7715ec68a4f3888babdee217b0cabf5ae7c2a48ab47977f4867e95c9555. Chain 2 (Bitcoin): anchored in block 960334 (2026-07-31T02:19:15Z), 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/HUUM70700307.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4e5d3ad25f1f1697d804300cd087e8862a556226312616ebc657421a3110d8f9. Chain 2 (Bitcoin): anchored in block 960481 (2026-07-31T23:51:35Z), 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/HUUM70700315.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdff56340c33ab60a068753a0989fab0afafbe7f9e25b2c3b69de0fdf35253a4c. Chain 2 (Bitcoin): anchored in block 960441 (2026-07-31T17:29:52Z), 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/HUUM70700318.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe07627a762ecac6edf1476a7d32761706247cf83f4c05bde5d074637678e5c09. Chain 2 (Bitcoin): anchored in block 960441 (2026-07-31T17:29:52Z), 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/HUUM70700319.
Voltando Para Ti (feat. Além dos Cravos) - GV3 Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe76e87217bbc87c24f2ba756721aadd9da566474da0af03385791f7f134e6b64. 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/QZS1Z1608308.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa157689fde7051f0d72f91a49546e915ec19e4552ae725c89e0b194c8e98cfa9. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/QZS1Z1608347.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2b5d22c7083fbb548ea523d1c56d425d3da736120c8b6a348f694213a366e46e. 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/QZS1Z1608353.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6595abaebeb11e5640e195c600a83ca93b830cd8470f372c41b7354044aabb80. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/HUUM70700435.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb76ffc1d2af5f1ec54cdbfc08aeb462a56fce115d92c7958802730b332bb2d2d. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/HUUM70700443.
Good Morning Starshine / Jóreggelt Napfény!
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x88f81147025f60ca4ce207933fe86bff7e6bed62fde34206ebb0ffd7fa865119. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/HUUM70700448.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x44784236d279c5adfa0e0555bb8980714d16da97662d53745cd02cf94a1352c7. Chain 2 (Bitcoin): anchored in block 957073 (2026-07-07T18:39:05Z), 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/HUUM70700450.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x98b94227ca1834fbf4f692f55ecdb49090e5e2fc051f30b09e6ccecf296c3c34. Chain 2 (Bitcoin): anchored in block 960397 (2026-07-31T12:24:41Z), 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/HUUM70700444.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x92a567eb719e19742b174085d291ec7c222de19b4d7ab68190fbf59614f0b9ac. Chain 2 (Bitcoin): anchored in block 960478 (2026-07-31T23:30:38Z), 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/HUUM70700447.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd409d42d9822f82bac9c2493788d554660b70709049405191cf8f5305458768f. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/HUMAG2012106.