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 0xed350c9d3bc41a66497de80e72a8e71f1bc72c3c4567f4fe420c3153a7ae24dc. Chain 2 (Bitcoin): anchored in block 953592 (2026-06-14T05:36:59Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/04b9f46e-2abc-417a-b512-718ee65d412f.json and https://artists.proofprofile.net/proofs/artist/04b9f46e-2abc-417a-b512-718ee65d412f.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 0x6f4aa8718815e1e7b79982708c7f436a920b9315040c4a60a72e489c6b46cb0a. Chain 2 (Bitcoin): anchored in block 960389 (2026-07-31T10:20:10Z), 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/USRHR1225101.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdf3a071e53e9a975c9acfb2fa81122506ef12a178306ea4cda8893abcdf41a0b. 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/USRHR1225102.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf68320e13a0fc8ee3c1145f5afa8677d7131e6ad3a4bcf298fee00721d6c5519. 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/USRHR1225103.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x944999a6fad08da471421cb5e6bb8fbbb7f67760eb4a68fe167e111ace5d8456. 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/USRHR1225104.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x389d0997ac998bc3d8eba1521e10b90019d675f368d9f047d9cb3cb6fabafe6f. Chain 2 (Bitcoin): anchored in block 960403 (2026-07-31T13:04:34Z), 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/USRHR1225105.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6c0ebc59e3d28462cec59f603ed9967f26d19466ed0fe9a136742e0e67fa74d1. Chain 2 (Bitcoin): anchored in block 957122 (2026-07-08T03:39:04Z), 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/USRHR1225106.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xac31d96a0ebd0049c4f765b7339d7f402e7a8037b08f1b04f3edf4920b58d989. Chain 2 (Bitcoin): anchored in block 960489 (2026-08-01T00:40:43Z), 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/USRHR1225107.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x71bf07dbeeb5a16e5216f3b671e9e21b75022255470c236a196b76e013be4ca4. Chain 2 (Bitcoin): anchored in block 960448 (2026-07-31T18:48:12Z), 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/USRHR1225108.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeeb49c6934d62e5243613d2b88a4dfbec9badf403d4254a362d8257b299d368f. Chain 2 (Bitcoin): anchored in block 960410 (2026-07-31T13:50:38Z), 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/USRHR1225109.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4ec91c4305c899ec0fae7329e0495901158f6b29b26be7f2f0631fd036d60c72. 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/USRHR1225110.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd7a2a572a569501ecb4bbb255af2490c44d4d1b649b49d44a1529017a77d4ff6. Chain 2 (Bitcoin): anchored in block 960509 (2026-08-01T04:30:37Z), 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/USRHR1225111.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa235ca75d8aa253252434e7f6f66b085b99db4e21b0284c67a64334f881b2a58. 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/USCGH1369875.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x54d348e51e66cb7aa7b1613a073101b021486aadb08dbaf5279cb43d21f5f04a. 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/USCGH1369876.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3cc1f0cf47449c7ef2a264c403e745154778c12d800a23db77b42c363e602abc. 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/USCGH1369877.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xec58a963c2e5d4794adbb0646f26427317a52f66484fd25c26de831e676d26ce. 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/USCGH1369878.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9abd3e9b7045cf2fca829959cea9ebacdc6d65b012d37ce49872b681bc79a4d1. Chain 2 (Bitcoin): anchored in block 960317 (2026-07-30T21:35:24Z), 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/USCGH1369880.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1cf36b26a2f8c4f6846f9fb27fd0396b31423e9fb5ee6b50e68bbafc214ae9ae. Chain 2 (Bitcoin): anchored in block 960435 (2026-07-31T16:33:26Z), 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/USCGH1369881.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdaea553f38e7558328a711134d9e94ba04b7ea1a8a94e299fbdb04f9431823f0. 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/USCGH1369882.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x17f99b936de83fbb335a4422a9a74f59ec4fe0395530e11accafe8ee0b9b87b1. Chain 2 (Bitcoin): anchored in block 957122 (2026-07-08T03:39:04Z), 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/USCGH1369883.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x76d3e0e074d39b11972c99925f73492269a211a64e97985fbfca1cf3c2f3518c. Chain 2 (Bitcoin): anchored in block 957122 (2026-07-08T03:39:04Z), 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/USCGH1369884.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb5af423dde0a8c195b442ac91b308144fa21ae2584fcedf384ab26f17fd9fad9. 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/USCGH1369885.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1c0230f85dc4c70feb5bf840e48dae4aad711f8db42a5b4fb1b25f43ba2e4421. 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/USRHR1226001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3de9ab296c5c271e64ec42571b8873eac81cc33a8b1c0aea749f932fb5da93a5. 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/USRHR1226003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb5d009844b273fd9ef8ec0de9a819e75269833a8148c0c1b0fef682de6139da2. Chain 2 (Bitcoin): anchored in block 960302 (2026-07-30T20:09:33Z), 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/USRHR1226004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x035baa093304a39bf498dcd5a292d07fc08779c0a79778b609e5a071b0213758. 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/USRHR1226005.
The Signature Sounds 10th Anniversary Collection
Long Time Traveling (Rani Arbo & daisy mayhem)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2dd686f11c63422bc5620c2ce93e1a573ab82bfd64cc45afe7f152d79cdaa18b. Chain 2 (Bitcoin): anchored in block 960455 (2026-07-31T19:53:13Z), 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/USHM20510135.