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 0x0e804a438c7692094780a913721943a96a2689b2ddbe3c6877b8b1efa59ada9b. 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/67fee87a-c7b3-4152-a34b-b9b9ea20c596.json and https://artists.proofprofile.net/proofs/artist/67fee87a-c7b3-4152-a34b-b9b9ea20c596.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 0xb8b37036f8e9ff153be35e85eba84d84c4b082a5b1192e3703155e309df35bce. 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/USL4Q2416349.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7eed31bbdb7f7967e04ce5ba80d079c92783dced04ec0da54aa8708970ea11dd. 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/BK1P72400085.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x525e3eed89c5eaf58d03725413acddf58dd75d838a39b37bc48a6ffdeb77a8be. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/BK2242401802.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf9e5bfcbe8d78440fca723517363b0750516629c7ffb82d99ec7a72fd9e49f11. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/BK1P72400076.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb2146bfad83acc5a818c6b29291a23c059e19f165661318a87386b4b6de2ef6a. 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/BK1P72400077.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x42e121e1f0b27847f0a2fc65cd3a126615278f57dfc6ca6e6ebe0496fe196380. 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/BCH2X2400006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x52ab36e27aa7c0408f21d5795f8ca98f16020b095361ce6291393a9fbc648397. 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/BXZ8W2400011.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc7d83230c43452603fe906f506390dc3e4145227f7a63babefe19c419a21ace4. 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/QZPLS2441793.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaa29eddf89c534d19854329c827194859c6ad8c34e4a2cf8d36dbdd3421b8604. 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/QZNJX2440884.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x287abc535185213074c96a239ceb2c4dcedb7ac5e55f4dc38901dea85455d9a3. 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/US3DF2474247.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd1ba8f00fcd2e45507b89e974377e2a209cd18e55de6de5630bd5ec8197dc4ed. 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/US3DF2469679.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd721bbf3fe4960c93eebbc9a6eb6baf33c2fcfc1d212bb54e0e9d81cdbef6d1e. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/US3DF2457720.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd29496d5453259cd42730e9ed0fbed1eb59750d32e73ef84e4ad53dec2f15639. 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/QZK6K2433119.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd206584566021a7c1f338767087bbe49629a16d5392b280c5ac2b9f9b824b3eb. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/US3DF2441751.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xba6d99f09f34bea16473f1401d3e41dc3ee8798288ec586099b602fa37bb454b. 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/US3DF2436477.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe2a6e9d8d5dd18e2cdb4469004b413e19c0700fa26f4c6fb2469883b5845b3fe. 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/BCINB2400003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfb6ce88393bdf341f3937d2b68fc4d7b450ba2960e768a485947a76596fef1a4. 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/BKGNK2400002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x49d8e966a5688edf97d893888f2a9aa2a56841ea8004bffaf15ae7c1180ce08d. 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/US3DF2436351.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa35298a2cc8cc86dcf6716a4081186fac6b55fc7fa5216162468e66d78a27aa7. 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/QZDA52418354.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3e1b45c77ec75f435c0755e6e50f336dbe983eeabe5e0ed17b05768611cc28a8. 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/QZDA62436294.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd543c9d46b91984e5a6668869c967bdfbc7733ed912cc4889d88bb144c249d3c. 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/QZFZ42449130.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeb1ff100e8390cb369d8c71498e6ada4fd7bb07c235162753ea983f054752f64. 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/QZFZ22471289.
Dez carros na minha garagem (ELETROFUNK)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x75a527955ad0e565468aba74b8dcc1c2f708876a19679e380232a53a7f3345d7. 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/QZFZ32448438.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5f3ee8fdbd6577d38462e30a9c780803d523b1db78d83e0fecf1033413156e0d. 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/QZW9L2383977.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdf9a751b8ddc594e1b30a2cbe123a84c9ba3cd1a70dd2c0473f7cd3a195052bd. 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/GXBAV2370833.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa6fcfc65966ac5e1ccc4cdc9c6ebbe220e67409052d9ca20781a1d3423dd9586. 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/BR90B2303404.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x387a5eac10097eb087611cccb924052bbac5a57ad783b97c649f74411be554ea. Chain 2 (Bitcoin): anchored in block 956349 (2026-07-02T11:34:59Z), 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/BKGNK2300019.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x04e54dfe4b63ce5bf496dc250b462d0548ade5264062c1968bb18b6fe5823aaa. 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/BX4IU2350457.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaa729ddba95056dce4fd204684c5638857583cc2a49786e49c4a822d9b55e96e. 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/US3DF2440360.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xabf719817e6aa88caac9c400b023f714c54d5a2a5cf444bf18bcb503e00630ba. 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/US3DF2440771.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9647f053b5e473fd2980b36beab1d8eb2f424832b67895be8e48c9ea1ec3f455. 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/BCOOP2300030.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x332d4d9af51d74a9569b7b4c87e13bdf8adfac9685370275c4b6405627952644. Chain 2 (Bitcoin): anchored in block 957061 (2026-07-07T16:07:00Z), 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/BKGNK2300006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x245307e73523d0192fb609213722619caa95801531ba0ef53d6c35e679179375. 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/BKSAI2300062.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x25adaca768ef689324e9dbe528e2aa0ea06ef2e7111918ce2361c2882432296c. 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/BX4IU2328117.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa291a896cd04aa2c53eca487543ab41a585086622d22c976c94c1f22a159b189. 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/BX4IU2328120.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x123bf19ccccb5c5625e7d18aa29c48682a5aa9334a292a7b3868a1b3a8994d40. 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/BKGNK2300002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xefdabd8a0c9e8c362b0e7f293b913d26e8a52371be5c9f3914f152700ba25a61. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/BKGNK2300001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x287abc535185213074c96a239ceb2c4dcedb7ac5e55f4dc38901dea85455d9a3. 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/US3DF2474247.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7685b6e485e11aced83407142aa23add62e3369b8e259ec6e5b2d6df9a5248e0. 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/QZK6H2474173.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2c23f635d2c161ec2ac6bfba51fd692c57b4f016ccb3d1243303089de33c3c72. 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/BRUM71201092.