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 0xcf43e42fd3c71361332071549616281c7c37c74cb6aa1a2b714b8fdb280ae679. 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/be83181e-11db-4a61-a800-31a3dd862a8f.json and https://artists.proofprofile.net/proofs/artist/be83181e-11db-4a61-a800-31a3dd862a8f.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 0x850f57407f7bd401e2b850b88b955501f74d9a3c0d9aeaed9cc55c566856dee9. Chain 2 (Bitcoin): anchored in block 959043 (2026-07-21T20:57:37Z), 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/HUA630700649.
Itthon Vagyunk/Zárva a Mennyország 2008 Concert
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf626ca6ccfb497ae465c4e4d40178d85b8de1f41b3cf8ea263c75663ebd5a274. Chain 2 (Bitcoin): anchored in block 956551 (2026-07-03T21:18:05Z), 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/HUA630900683.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x92d595af7bcd13e738006c64ede2176211b3550b7d845256ec4e773227c2ab79. Chain 2 (Bitcoin): anchored in block 958204 (2026-07-16T00:25:01Z), 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/HUA630700679.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5689ab53b281998020a9e493f1e450b0fc3986eaf5a8eafa01d001dc7cb524ec. Chain 2 (Bitcoin): anchored in block 958246 (2026-07-16T07:58:13Z), 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/HUA631200423.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7e008d1e0788716a45c449d4ea01a65bb45bfa30cd16b233b26d6316ffc2f7cb. Chain 2 (Bitcoin): anchored in block 958783 (2026-07-20T00:12:17Z), 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/HUA631500395.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x669048d98c4d7b701e82762c4829af2e085b0a1545bef85bcf4aec1e4b579a36. Chain 2 (Bitcoin): anchored in block 958838 (2026-07-20T07:01:21Z), 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/HUA631600314.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x170eae43619d62c34b248dcdea4bb49d2d2666375ecc384ed8413dc2c9a831b7. Chain 2 (Bitcoin): anchored in block 959089 (2026-07-22T05:05:19Z), 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/HUA631600317.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe890ff208bdd94081c06ec5d66bc400021c429511e93dfa0455b5f4bd81ad52f. Chain 2 (Bitcoin): anchored in block 958917 (2026-07-20T20:18:42Z), 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/HUA631600323.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd8fa216abe550ece68c39952bf05200f21193185afbe4d8b44263abf6ceeb4e1. Chain 2 (Bitcoin): anchored in block 958667 (2026-07-19T05:04:54Z), 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/HUA631600951.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x70768d8811163a42dc48fa82f6abb0c709988d6dc209e476114d9afb39f5f023. Chain 2 (Bitcoin): anchored in block 959052 (2026-07-21T21:33:24Z), 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/HUA631800560.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x66d71f86bc786fa937bff45bb9666446a29d2255e0f2852e00c763462f605cfc. Chain 2 (Bitcoin): anchored in block 958388 (2026-07-17T09:14:21Z), 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/HUA631800561.
Patkó Bandi (A törvényenkívüli) - Gidófalvy Attila
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x41255c5a818386ba42f98e89b940097f5af0f3398962fa682c67dad0e4779f4e. Chain 2 (Bitcoin): anchored in block 959037 (2026-07-21T16:59:47Z), 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/HUA631800563.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4554f13c9150ef7b39601b9ab5da433711b0ca7e5dae0f9ea3c317443bb33188. Chain 2 (Bitcoin): anchored in block 958690 (2026-07-19T07:14:39Z), 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/HUA632000217.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa8ae54bec4a9152067595b25dbf1af55743730ca989983488999a518a1189b95. Chain 2 (Bitcoin): anchored in block 959091 (2026-07-22T05:05:04Z), 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/HUA632100291.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa9ed901e4493898a4a3e8051369ce54106d8694fda25b43cc82e794ea9824639. Chain 2 (Bitcoin): anchored in block 958951 (2026-07-21T04:05:01Z), 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/HUA632100292.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd83369ddf302e6f76428043240e02c8a4de7abe3baf65b4efaf4e4c453bd2787. Chain 2 (Bitcoin): anchored in block 958633 (2026-07-19T00:54:50Z), 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/HUA632100295.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x059be5d4a6e1e30d61d4e3e621fa4bc0a354e331e87ef9ee291bc3913ef8c1ce. Chain 2 (Bitcoin): anchored in block 956856 (2026-07-06T01:25:57Z), 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/HUA632100296.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3ac733c7cca8ff623d3e141ae62b170a60156e7969b89685143c2ed41c4d9f1a. Chain 2 (Bitcoin): anchored in block 959047 (2026-07-21T20:35:16Z), 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/HUA632200370.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x63fa05e0f0bd9304af88b832d538731943de4a7392b21f2403e1a469f5815fa6. Chain 2 (Bitcoin): anchored in block 958202 (2026-07-15T23:53:48Z), 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/HUA631800342.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x199f79fa6b8e97439255ba9bf5bfd595a902c7d0b48a588c8dcb22a028a3400a. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), 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/HUA632400107.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdc05781ea2c8728e98d5c593fa20ba20294ce27af9a396ef28783e140c6b8e65. Chain 2 (Bitcoin): anchored in block 958489 (2026-07-18T04:13:26Z), 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/HUA632500050.