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 0x283784662ab902ff4346fd60440deb0bd9378bda872b393ffa4649065b357be9. 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/82379fe6-77c0-43ab-b024-9b0d8d462b6a.json and https://artists.proofprofile.net/proofs/artist/82379fe6-77c0-43ab-b024-9b0d8d462b6a.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 0x2930a23cc71d383cf87a17286fdf6eaef08732f05ac33c04fdfbe50bbcf19f98. 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/BRACT1603609.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x848a0b99554b83e4a289d3353cda1953e306cb6ae8f086a09124773bbe1e296e. 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/BRACT1607336.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc6c50202a3dfe21441eb028af972b42354c618eb33dc0a4474811b8a22b3271a. 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/BRACT1605818.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8e0b9065c0247a3c3c1f6bc48dc9f493f8c06fcd0f91790b7c9ea3e44994092f. 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/BRACT0701204.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7538f00254776db35d77f039bab02d8f63e838ab619541ea9378016eb34b19f4. 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/BRACT1604913.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa4a4cd74c013984a2bd730a10c051f6e013da864e3a6a56302e7dcccb451ec3e. 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/BRACT1606232.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3c7f717af9c7d95452bc9d9010ac8619e7c58496aa64ab84a0a89c07f73c8516. 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/BRACT1606768.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xab043150db8a085135090ef15f4755cb58593e2d40b4dd359ea72b5d272ed8fc. Chain 2 (Bitcoin): anchored in block 957820 (2026-07-13T07:54:01Z), 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/BRACT1606771.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3f6cfb2029c529c373dc10f93874456465a9b419cd65574fd74db115721adf88. Chain 2 (Bitcoin): anchored in block 959163 (2026-07-22T20:50:30Z), 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/BRACT1606773.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdf159effba21d7d6a8813bda7341b3ff4acf8f985680e45c43e02001727b89dd. Chain 2 (Bitcoin): anchored in block 956889 (2026-07-06T06:56:49Z), 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/BRACT1606775.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfd022a5a549f8e5952794acb36d9b573473a1e565a6aca334314668aaccbc43b. 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/BRACT1606777.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf3833493d01fe68640d45629c6a1cf67cf4cfd1cdd991279ae1606482e2efd25. Chain 2 (Bitcoin): anchored in block 957819 (2026-07-13T07:53:33Z), 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/BRACT1606780.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1db4257f4bc7e31657d0817d4f19f746ed15d5ca9031d21056b810b60fa35957. 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/BRACT1606781.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x079315d775f4c756f8497972663be2bbc8e938fde99b3894d43facc51d65dd26. Chain 2 (Bitcoin): anchored in block 959128 (2026-07-22T15:00:24Z), 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/BRACT1606782.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x80b96b527b95cc96cfccc087c820f5df0ad3646f9fa8840eefe4d2fd8d2d01e3. 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/BRACT1606785.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0f695d299f752e9ed2946cf8d35f9b95b186e39a53575054d4a40fc15b291955. 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/BRACT1606035.
Os 16 Grandes Sucessos de os Nativos - Série +
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x139fc032166e8925331b469c4889b98e488350faba326bd8618183bf4004a44d. 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/BRACT0300451.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1c2843d8891593f2f0c4d762322f25b8b1d9e85a013ee32f8b261b2607f05c1f. 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/BRACT0300452.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x57f848ac3f9d115af7edea29127b964b93588463e23940901c881b36cd756b68. 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/BRACT0300455.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x82d7e53b25af7af1d61790db2a3905c432414171280d527ec97a5297163c7a3e. 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/BRACT0300456.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe209981fc0cc15498b8d5450bb3065f18d388735ed77f2c7a2c518f48a3526ad. 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/BRACT0300459.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1416c8b4d14a34b07f9a3956bf420389b72804d1be968570df33a4949b94a458. 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/BRACT0300460.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x592a84905a57adb8eedf50c2b3e307f6fbaad59a6a8b206fcb6a4a95c543bb47. 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/BRACT0300462.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa93160ed5ff8a51f9f208bbdf9d78045f172a756937b718a98b27cfdd48acb07. 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/BRACT0300463.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x10c2b9d9516f259514b6a50a5d80b64ac668abb3998d8277b82c101d59882317. 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/BRACT0300464.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf86c4de3e7d906444e09e7fcb7f09f870a3de3a0c74b413ec063b0fcc498829e. 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/BRACT0300466.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9d821f47376bdeb54e78649ca20e3f06bd8f9b655c7f4a5ae711d34cc1a9b1de. 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/BRACT1607771.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdf39b3f95a593ec6edb693d44cd8eb484cbe61b5239e91ef0cce14a0320b3893. 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/BRACT1607785.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xed4e1090fc3f81e85b2b324911fbbc63bad4227c0f141d07c7111bd5bcc4e74e. 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/BRACT1606795.
Brazilian Nuggets: Back From The Jungle (Vol. 1)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbc15da43219363d7945f40ad44ce244d4222ff1bf040e62da2edc454873683d0. 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/BRACT1604724.