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 0x6c43dedfc512a03d225fa7c050d4b3b10542b3694f7307a7119245b540320fad. 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/b5b96565-fbdc-4c38-8054-62324678ce62.json and https://artists.proofprofile.net/proofs/artist/b5b96565-fbdc-4c38-8054-62324678ce62.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 0x4f87255d425ebf1cd8e2d03c6c647fd68c35448ec29556a384aa22da248834d5. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-22T00:51:37Z), 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/USCGJ1894937.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x206f4d301e41dfbc6cbe466efe9a1e9153712e688c2d77e879c9abe8f2f0b091. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-22T01:13:44Z), 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/USCGJ1894939.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5f9e45c2ba2c925e10f115ba365b3acf27ca30fab44a2490cc6c422f66771b0b. 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/USCGJ1894940.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x106eb25f24a43082b334764fd93b6b17fd9b0cddb3ef73ebc89d9e5dd4b9680b. 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/USCGJ1894941.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x813d03a10dd7830e61a57e342ed811f72e817513d44f64329acaba29e2780999. 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/USCGJ1894942.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb0c3ad58d2ac0653ab6d31fecbbdd2fcdca766b29298873c6055f16950f70efd. 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/USCGJ1894943.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x39035d69a7f1eaa61efc15d6c65223660221ec044bd1558858c16de9d3b231e4. 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/USCGJ1894946.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xee83be1a1243c50b29c89fabd6d39bbd160ff33771ecfeea197129c1b3f1a4ce. Chain 2 (Bitcoin): anchored in block 957048 (2026-07-07T14:18:56Z), 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/USCGJ1894947.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd348eeb53d8e902c8e4354f6a7d76f0ac6e81be4d1abb940be2f82e618fae4a5. Chain 2 (Bitcoin): anchored in block 960105 (2026-07-29T12:35:17Z), 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/USCGJ1894938.
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 0x1a6eb0f87aad2c93f5715defa154e6717e55ac436a742d5abbe8a0511b27554b. 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/USCGJ1894944.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3ba637ae28d852e9311fb6404e8afa77dae72d6136dbb4e3d282d11ecec23edd. Chain 2 (Bitcoin): anchored in block 960144 (2026-07-29T21:09:47Z), 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/USCGJ1894945.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x222b15ef21b5fd5f2ba769b3e1a89736fffdcf1d55fd93764a31793324331869. 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/QM6N22373025.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x222b15ef21b5fd5f2ba769b3e1a89736fffdcf1d55fd93764a31793324331869. 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/QM6N22373025.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb6493fb14547c47259426463b4af3eb4885dd9d3ff7fb5520ff25503ce66ce2f. 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/QM6N22455562.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6890621a0befd2a8e893875172c15f3d4957856a03b759b56d57abeb7bfeeaa1. 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/USMH92302610.
Na Ji Kiran Ka Yanzu, Ya Ubangiji Na (Live)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc80c8a6317c4776cd60cfe21f985e86a694136522ae0209dd525c1df206b4e4c. 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/USMH92302611.
Ga Yesu Ubangijinmu Can Ya Na Mutuwa (Live)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2a53e9c241c4b435bd655458365691d4bbf96f87da05a57c4dbd4adf974992ec. 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/USMH92302612.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x73a319d8276036f31f9cf7858cd9cb265da0e13068745e6e762a0551ab89bb48. 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/USMH92302613.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x058f9e6dc617bcf7c5616a3d73ae8b5cf4b26bd7177e38e3fb2ae5b33b407b80. 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/USMH92302614.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x99e7069b40428791c251b5f8ec2f27064f7d8aa46bf8ae5d0408f587662ccc9e. 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/USMH92302615.