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 0x04ce016501ff48a831189c2ed6649af75d5dd46bc019a263bcd5120f8e70fe81. 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/475e9667-6148-49c3-93ef-2bfffce60782.json and https://artists.proofprofile.net/proofs/artist/475e9667-6148-49c3-93ef-2bfffce60782.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 0xfab36dedd81d71ba7b4f2f84b482bb90a1fe673ed78cdc75d660722b355c90ec. Chain 2 (Bitcoin): anchored in block 957820 (2026-07-13T07:54:01Z), 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/US83Z2101780.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6eb764df7acc9c7e01ff20037224238fbb98cdb74d9db35404cf9ab447a55862. 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/US83Z2101774.
Sinaï - Anatolian Sessions Rework - Mixed
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xee71c9dcb3d0ac0c0bdefe77b3765f3d125e10d8f2f9a28ebbd186d842020044. 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/US83Z2101773.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdedb70a599342fe86bc844933754f7c47b9e274cd28b8b3f727b16fcfc65f459. 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/US83Z2101777.
Oghab - Anatolian Sessions Remix - Mixed
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x23f669c77ae7082738c585ed6eda04cc9d72e0cfe334181839f8fe2124ba88a8. 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/US83Z2101782.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x53d28e6a39dd96df306f245e78585357cc7e2cc8f0609b70de9ff3cdef79dc29. 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/US83Z2101769.
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 0x127144816df1afd0528a3bbb66e7c3840d85d09a59e2034fd9c9cda3d7ecf626. Chain 2 (Bitcoin): anchored in block 960113 (2026-07-29T13:38:16Z), 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/US83Z2101779.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xede80214076bcdb11fae444ae4d84409fd85f687aa712fd676fd251f8211dd6b. 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/US83Z2101776.
Why's Your Love - Anatolian Sessions Remix - Mixed
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf915e1e33aa76f004a72682f247e9bfe515b239b9f5e9a91245c0ae5616293f7. 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/US83Z2101766.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x97bc8fe5bf8d3f76e3ad23fa3f0f5cd7bba73b00a9c1dd41f19e6015c4784efe. 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/US83Z2101767.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x32a7e0bdde8d20a261e2254ce8a72fd4455edc43745bee4a0cbfed42f20f7c63. Chain 2 (Bitcoin): anchored in block 960175 (2026-07-30T00:16:15Z), 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/US83Z2101770.
Sa Oudi - Anatolian Sessions Remix - Mixed
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb7dea5613402c898f333e5337c4c5e1dd4842e0b1ad4c5a0d8a3de2e82c84194. Chain 2 (Bitcoin): anchored in block 960193 (2026-07-30T02:05:19Z), 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/US83Z2101768.
BEY Roots - Anatolian Sessions Remix - Mixed
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x00d21102d5b93977f6fb5ccc95b58d0d8976575376ee713cf9b567267568bbb4. 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/US83Z2101771.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0adae8e3c9d49fa37cc824393bc5f460ae38901a4d7c5f8181924222dc232fbd. 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/US83Z2101772.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb3ce01e187da7f9218d661b36a3dc8924c3748db99aafd00200d39918fe08085. Chain 2 (Bitcoin): anchored in block 960291 (2026-07-30T18:23:33Z), 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/US83Z2101778.
Huma Kusu - Anatolian Sessions Remix - Mixed
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x69230deec3ee3c1aac0a6e269629636e4792b152bd9d2dab310e7f3d8c29585e. Chain 2 (Bitcoin): anchored in block 960300 (2026-07-30T19:42:40Z), 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/US83Z2101781.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x27cce87a82d9bd588ae5657c025a10eef491fa6427558c298f155d57406113d2. Chain 2 (Bitcoin): anchored in block 960321 (2026-07-30T22:27:30Z), 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/US83Z2101775.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3ce5c0a5b9a9ba8d56f05813e599a9cdef791123cded1b2096011d0f17f7d1cb. Chain 2 (Bitcoin): anchored in block 956995 (2026-07-07T04:27:57Z), 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/FR6F31924300.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6355fcd1686934859abc95df5ec29c60ebbf9f386a38d14146c26e3f4e42268a. Chain 2 (Bitcoin): anchored in block 960099 (2026-07-29T11:30:20Z), 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/GBKQU2092759.