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 0xf6202e9c5b193520f0dcb59e7eef16e655f42d4b4f6329f60ba8781db228aa06. 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/68fa45df-a920-4bf3-ae42-602281d0039f.json and https://artists.proofprofile.net/proofs/artist/68fa45df-a920-4bf3-ae42-602281d0039f.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 0xdef8349383e91d901ed815f1c0b1bb8f87d4addbe81d3e4b4b67e691de276c91. 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/USHM91744115.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbddbd92ebc38557c658c9a095c4fe05412911d4f61fea496d7c1a883ccef33ca. Chain 2 (Bitcoin): anchored in block 958544 (2026-07-18T12:14:37Z), 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/QM4TW2468472.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x256b65e520d49806a0f1ce34a0bd94e0a071cd8cbe74dc8bdc599bcf5ed91a33. Chain 2 (Bitcoin): anchored in block 958876 (2026-07-20T12:15:48Z), 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/QM6N22442292.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6d14ca1ad5e58d1ff92842203a3b1714f564ce547f929f82229d77e7f69fc952. 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/GBEWA2206750.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc27b24edc648843d722bdf8805cdaa857b0eff857a266ca948c52c33a2ded0ec. Chain 2 (Bitcoin): anchored in block 956894 (2026-07-06T07:53:57Z), 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/GBEWA2307064.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb1812f487a3c58b667dedd50a63a729ccdcfeeaee3df0e4612e960b95d249945. 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/GBEWA2304720.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8bdbdb675546c318a86e544c8d9d6096d989f74cc63b6920738b0da977c0994b. 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/GBEWA2304721.
Tears Of The Kingdom - Live from The Poetry Club, Glasgow
Anjunabeats Worldwide 11 (Live from The Poetry Club, Glasgow)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xabe905b1dbca0c263545b1ffa2c508e2de27091be0bce85984c577c76402f936. 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/GBEWA2306187.
A State of Trance Year Mix 2023 (Mixed by Armin van Buuren)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd77509f9df12e047134838f7da05f15c824e7f64842f36ad0acbee002b1ffe90. 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/NLF712308652.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb1812f487a3c58b667dedd50a63a729ccdcfeeaee3df0e4612e960b95d249945. 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/GBEWA2304720.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8bdbdb675546c318a86e544c8d9d6096d989f74cc63b6920738b0da977c0994b. 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/GBEWA2304721.
Tears Of The Kingdom (Record Of The Week) [ABGT548]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x12e6515d01d973942dd745a8a9300a517f32a22ff956c5d10935723ca41cecb6. 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/GBEWA2305456.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfd0cb933adfda6cecb2fc992b83b88f41ee0ed4d1d0936ea5022ad502f6f75a0. 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/GBKQU2393081.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x96043047ce9ea4f9291a6236f68be895a5d5b09c85c4bb2511f37b1dc1af323a. 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/GBKPL2096595.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x96043047ce9ea4f9291a6236f68be895a5d5b09c85c4bb2511f37b1dc1af323a. 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/GBKPL2096595.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa5d1b1bb7e87d049d99e47eb49ab33f28a649569688257da01f9ba75098ee18b. 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/GBEWA2304375.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb1812f487a3c58b667dedd50a63a729ccdcfeeaee3df0e4612e960b95d249945. Chain 2 (Bitcoin): anchored in block 957020 (2026-07-07T09:18:01Z), 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/GBEWA2304720.
Giuseppe Ottaviani X Alex Sonata & TheRio feat. Tishmal
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8ae1966b0cbe9e5a2a90b5c3e06a5e77c53bfc9df050a388427c0c354afadd94. 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/GBKQU2402408.
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 0xaa86e5cecbe819e69c4b47981ce8e66c97e5a3065c4e95d462afb54a3c7d1d9d. 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/GBEWA2305667.
Tears of the Kingdom (GDJB Weekly Drive 13)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4ebc3190e7f253a2415d6cd7486c2abc485c32059dcd67d2b2fa7bfe2d31eb49. Chain 2 (Bitcoin): anchored in block 960181 (2026-07-30T00:53:20Z), 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/NLD682400226.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x274327e462b14a23cee039d7dc08e061008be1001a2473739e96c4b245f3245a. Chain 2 (Bitcoin): anchored in block 960258 (2026-07-30T12:45:34Z), 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/GBEWA2306709.