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 0x3ae0168b53b25beea344b1c45c36dd5105417209de059f76ff20926a660eee3b. 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/2d251105-a5a6-4240-a9e1-57b5f6b6f2b1.json and https://artists.proofprofile.net/proofs/artist/2d251105-a5a6-4240-a9e1-57b5f6b6f2b1.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 0xbf42d37493a1ce1b829dc756a5d0ddc4ef8050d57c78428ceac0725721b62018. 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/USUYG1404668.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7529441b0844b0b504b97148dae8c534e0c372f7d33add099e63c05d83b4aa48. 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/US39N2102413.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe68d514631aa056cc5e8aa2c3d256066e46f8a1ccfca7f5072c441880930b48e. 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/USUM71915677.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6d28f59d0f18d72ca15fcb8ac81d75c9f6b872cbb435e40ba826ce48e00f1892. 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/USUM71901541.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xda3ddbf56eca2f26f9557ca97e08de6956d7b7872f6b7c271870af1021704da4. 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/USUM71915679.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x14e07c6df0f41f280583593d2749dea43bf8a3d5fab2ed6b58d8a29d1db469b9. 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/USUM71909685.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9465e0784f30c44ca940e390fb0d819649d9fb223c2f9d67f97732d7c6c08c98. 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/USUM71915689.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5413f49acf55e552e288f30e9cc9426593bf80ea61ad799a5cd5f23beb26a0fc. 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/USUM71915691.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa7cc8ca75a30a02017afa7add0d633cfe4aca67f2b54be1fcbaa664060db4485. 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/USUM71915693.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8270300b1eb9c2af3e465d6e02dc3793bf9259ed2cce99e10b5c682094c78eb0. 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/USUM71915697.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x39d8d3747a1e1ac4f56e8ef7de38a49fd49f5ed2c0486a830794f2966f738f09. Chain 2 (Bitcoin): anchored in block 960150 (2026-07-29T21:51:49Z), 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/USUM71915681.
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 0x7d92f098adff8ac7ec0a8e47289a78325d215a478ba07a34ea23bae03c9cf29a. Chain 2 (Bitcoin): anchored in block 960264 (2026-07-30T14:36:16Z), 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/USUM71915683.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc473c50754f9a713c65193f1c8810334ecbb3f8db387822d4ed4f612f5483ee8. Chain 2 (Bitcoin): anchored in block 960138 (2026-07-29T19:35:34Z), 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/USUM71915685.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9ed79a428b368b1a0a308def296c6e769dc3bf7bd84f3ce7a0b8a85d7e518b19. Chain 2 (Bitcoin): anchored in block 960145 (2026-07-29T21:13:37Z), 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/USUM71915687.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x339488bcd9ca9b608e41fa679fdb18abc86c311e9853bd572e3fec6e7bbb1edd. Chain 2 (Bitcoin): anchored in block 960108 (2026-07-29T13:09:35Z), 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/USUM71915695.
Late Night (with Cozz & Omen feat. Buddy & Landstrip Chip)
Revenge Of The Dreamers III: Director's Cut
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb9a1bc34e0412b5683050cd332c67b62a9f6781c29d02bde0efe3550ab24f905. 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/USUM72000119.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbf42d37493a1ce1b829dc756a5d0ddc4ef8050d57c78428ceac0725721b62018. 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/USUYG1404668.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf93b23cf0b0bbe7afb2c4dd86a6d4669f651298e9b7577fdf7f1929ac29215df. 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/USUYG1424294.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf646dede65aaf5b3731150aeb81e4fa55323ec35d80f38b1bcdc4bad4b622a99. 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/USLD91737451.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbf42d37493a1ce1b829dc756a5d0ddc4ef8050d57c78428ceac0725721b62018. 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/USUYG1404668.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x47adb99d4d83df7a5c0851e3c10345660ffcf01c820c1700dbd3918306edc9ec. 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/USUYG1386225.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x47adb99d4d83df7a5c0851e3c10345660ffcf01c820c1700dbd3918306edc9ec. 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/USUYG1386225.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeae20b9cc3fe3cd1d16742adfb433de988434088585ba300aee5f032512d3452. 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/CH7811106598.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7289c3618ec413555f813d4e8ab732fa79d66e1ce69553efbc62eb66150cbe3c. Chain 2 (Bitcoin): anchored in block 957011 (2026-07-07T08:25:35Z), 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/QZGYN2400827.
Too Bad (feat. Jim Jones & Landstrip Chip)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb50072dc696c2ac90ea4397b04663563d86f3f36b9228989dbba660967f0fe87. 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/USUYG1367826.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbaebae35ce2a1bff65d74d5eac91dc16d3e2639dc1a35c6d6bd9f18b3d71c492. 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/QMTND1900011.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf37f5b70fef4e99043c26cab079b051fb2b03b560a4cdcd94e8b488e001a3233. 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/QMJMT2204211.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x693f3f569ce2e8c46e6ac38700ec1bf29c99178de9a5e27fcaf1752a4e73177f. 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/QMJMT2003397.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd32e7f9c0cbb74395e889c61a98afc4339a65f0cf2771dd94a7e819ce629b15e. 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/US23A1543214.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9da4d953fe6039cefdcd7d2b600560723a0701a970ee1490abb8691bfa6ea0a0. 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/USAT22309641.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa0b214b88a052b04bfb0bf534aed7b0edd7f52ae58ecfb54c4764be03c63639a. Chain 2 (Bitcoin): anchored in block 960337 (2026-07-31T02:51:48Z), 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/USUM71820420.