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 0xa6ce34802599fecf3c4a8992ff01329e931b650b886cd6b86c38685b0750afaa. 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/c4f2f3ed-a2d6-4777-87d6-3fd0d8b6aa70.json and https://artists.proofprofile.net/proofs/artist/c4f2f3ed-a2d6-4777-87d6-3fd0d8b6aa70.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
BlackSheets (feat. GoGetta KB & Chiico Cenz)
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 0x1d37b90c3e540a6cbc2d1a4cb3eb41b3f5e041c74ec2549fc1141ad88db5e4f5. Chain 2 (Bitcoin): anchored in block 958462 (2026-07-17T23:17:53Z), 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/USLD91703599.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd82c2fca53866ffb677cb8b1f225092c03cf3639bc29ef5dddfcc62c04ac1dd1. Chain 2 (Bitcoin): anchored in block 958771 (2026-07-19T21:57:29Z), 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/USLD91723764.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x147a2960b23acc8aad848acaebb46e40eb507524b68f5d531655a00ff5b48279. Chain 2 (Bitcoin): anchored in block 957884 (2026-07-13T16:55:06Z), 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/USLD91723761.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdf3c12eadcb905b1b5119c7271c1767c7a7ea3ad16eb1dc33cc5d8d3a77242d6. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), 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/USLD91723717.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6763d5cf9040e2a888aaa8aeb41ad7db65c7ef2df576fe6ece151299d53a97fa. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/USLD91723718.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf8abc8199d5e69803f87a36784cac00c46f0786eb73cdbacc44777c1f25a21aa. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), 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/USLD91723719.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8634da5ad1cf6e6ea85f71401ccb74fafe851e3f520c3b304fd94ba0b89f5a44. Chain 2 (Bitcoin): anchored in block 957882 (2026-07-13T16:48:10Z), 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/USLD91723723.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbda7964a05faedd5f0f15dea18860c64ba383d30b31c1bc87898d15031aa880c. Chain 2 (Bitcoin): anchored in block 958690 (2026-07-19T07:14:39Z), 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/USLD91723735.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbeac7e0e8aa6f6a28094e2a762e1282cdfb463aed305382ccc555d7b1abf1e79. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), 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/USLD91723748.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcd4dc26e9e51127a7ca31b534a1156bfd6ec1d9f3fcaea82b65fc7262c6c17c4. Chain 2 (Bitcoin): anchored in block 958489 (2026-07-18T04:13:26Z), 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/USLD91723749.
Where Yo Safe At (Remix) [feat. Lil Yachty]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6a236856554b250fa3ab5faef58e9aebc100b4b12d46610a99d2775dc542dfbf. Chain 2 (Bitcoin): anchored in block 956656 (2026-07-04T14:03:39Z), 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/USLD91723767.
Green Bean (feat. Almighty Benji & Lil AlmightyBenji)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x796745c157eb3d3aca262e9ded93f52d3415309888307029f04f8356e33ea959. 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/USLD91727517.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x27ddaf3b951099c9a674e31d2b2c43c465a762f7cd8c93c4d77185d4a209d323. 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/USLD91727520.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x278bf70e235c105778073074ab66f9730d9f428a2b78ef18ba956e2fd00c4c68. 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/USLD91727521.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdbb111cf64ba5c9ac015b60dea6f5211f778cdda42fb758ac36d800c458f8dd8. Chain 2 (Bitcoin): anchored in block 960468 (2026-07-31T21:25:57Z), 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/USLD91727516.
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 0xfe10f353f919af1e044ed12867f0d2d3ae6e70bee263cdcc033ed17cf72864ca. Chain 2 (Bitcoin): anchored in block 958878 (2026-07-20T15:16:34Z), 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/QZNWR2011953.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x11b7000f4d36bdeb72f584af5c06de78c494e127c1ec19ad4c89ba784bcaf368. Chain 2 (Bitcoin): anchored in block 958690 (2026-07-19T07:14:39Z), 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/QZNWR2098355.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcf19b6acf3140404af98b90ca317a0c9001ef7b8ad203ffaf426d8a27fbd1bd9. 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/USLD91732051.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaee69b4db510dc2cd5534335a066d1104e785ec7f6bde4fb363d10eb91801b3c. Chain 2 (Bitcoin): anchored in block 960368 (2026-07-31T08:26:41Z), 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/USLD91732060.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x624f42f6270d649ad0ae8f4e3f2b85733202033e08335995668bd49ea10c61c9. Chain 2 (Bitcoin): anchored in block 958622 (2026-07-18T22:58:55Z), 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/QZDA52193993.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9453b307d504c1dea355dba7869b88f988bb7241980273c4c084001b4ca73e8a. Chain 2 (Bitcoin): anchored in block 958832 (2026-07-20T08:26:22Z), 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/QZNMW2115026.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcdd4be60274a05cce9b5820443c8a1bd41542e87afc764ebb89d414a67a325de. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), 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/QZNMX2118733.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeffd1e793335f71c20321c1a4946d363c8616af09bb43bf4387a139b2eb27d3d. Chain 2 (Bitcoin): anchored in block 958897 (2026-07-20T16:42:50Z), 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/QZNMX2289049.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x47d7d15d5fbba1539ae2275ada66449e1e5baa3d5f09e9587322fe2dd25590ad. Chain 2 (Bitcoin): anchored in block 958846 (2026-07-20T08:14:15Z), 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/QZNMX2289044.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4e2d80bbbe06e04185ba21f460dba2a740b87dc56c9bc95a2d369f4ef3f61471. Chain 2 (Bitcoin): anchored in block 958728 (2026-07-19T12:24:55Z), 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/QZTAS2414468.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc298df997e4cce32f8ea2032c8e5644e51c953d527a5bae58df2fceddb917403. Chain 2 (Bitcoin): anchored in block 957888 (2026-07-13T17:43:59Z), 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/QZNMX2401460.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x82ad1c7cf024c03c1d85cc62e0946b7fe7e803c6ac52f23d6f646c925ee6dd66. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), 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/QZNMX2401465.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x675faa5eccbb23a67b80a49de7cedbb2bcd1112a0c2ce6703ea85c5a012fe237. Chain 2 (Bitcoin): anchored in block 959009 (2026-07-21T16:01:57Z), 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/QZNMX2401468.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4807b96908e36e99e3a82a1345182e98947ee2fb6c4ef2f593c8fa59f488423d. Chain 2 (Bitcoin): anchored in block 956656 (2026-07-04T14:03:39Z), 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/QZNMX2534832.
DoorDash (feat. Almighty Suspect & KrispyLife Kidd)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6f9f2961d1b396f03b3b968a55bbb8caa348f9ea165fac3fc21b5c1941fbc21c. 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/QZNWW2045960.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xff9b784a5542060e4b567575402720e4a996eeb9bff03d7be5db2e5a9659d443. Chain 2 (Bitcoin): anchored in block 960327 (2026-07-31T00:26:26Z), 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/USDHM1801050.