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 0x6653b858fd2acf9716b2d47bed06b52c6b5af4c46c198b09fb0a07a2f223da3a. Chain 2 (Bitcoin): anchored in block 954650 (2026-06-21T04:51:12Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/db0dec42-5c5a-4b99-b875-8168b4ba9be6.json and https://artists.proofprofile.net/proofs/artist/db0dec42-5c5a-4b99-b875-8168b4ba9be6.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Deviņvīru Spēks (Live at Lielais Dzintars, Liepāja, 2023)
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 0x968558d3c334342abe6568f19df8f9822d25dff5b3f9a64972b48c931e925d3e. 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/USDHM2311292.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7990a16e51b011515ccb06c5cf27550bd30b0167ac112517fe7d40659d9b1c2b. 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/USDHM2311306.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6faa805b53db255462a58abe27194c39831f09d99bf916a880a58877eba01b25. 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/LVL152104326.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd06c4322f936244e53ef88fc0d54d9a8366385e66d838d4a23400e31227ea290. 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/LVL152104334.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1b5cc216fe5f3d91151956884bacce77732aa780a5ffacc807024ae178ed901d. 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/LVL152104333.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x023cb7dd4fec8ab125ab4ac7e5ab2ca9a5d56609e0579a696c9177945e7fce9e. 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/LVL152104332.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4ecc5e2a34f936000bbd084d8935f370a63bf668b4273164958ef8d0eeccb239. 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/LVL152104335.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe6849ac5d8899be2a188d1ffcb06d760be65d133952b4768cfdd6fd52650856f. 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/LVL152104337.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb313fc7a653d0aad8b068f690d23c60d942a8b3ad04fda7ca16c70911ca29be1. 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/LVL152104339.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa78f5331e6d3b99356ee43a2eda9ef091affaf151b29ff68775a8dde1550272b. 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/LVL152104331.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8701e846e1f4627a27043a157f4d980d1481ff773eb6b837e844c5fd9cfb9741. 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/LVL152104329.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x91da8eb2873c42319274e0a243e1c5a6b569e9563e40f0c48e2e8a47dba35921. 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/LVL152104328.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xceca4ca9918f19419fbf8a4786cb410463c4e05fbe813dceaa7eb2c97751e25b. 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/LVL152104330.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb65eb542184256c407647f13308e4f5a4eede930730d7fa49e396512d3786f7c. 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/LVL152104327.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x60b7b0258ee2b541ac6c588db1a57a24079d18f65949a0809edef60cf7650d2d. Chain 2 (Bitcoin): anchored in block 960138 (2026-07-29T19:35:34Z), 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/LVL152104336.
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 0x666ed55bcc50b60a45e140b0c5b290b3386be065685cf3dd8a03601c3335195b. Chain 2 (Bitcoin): anchored in block 960478 (2026-07-31T23:30:38Z), 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/LVL152104338.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1f2a1e30a269034ecb93cf49dea082bfa4830bc1656ae926698a05f20eb670fc. Chain 2 (Bitcoin): anchored in block 960441 (2026-07-31T17:29:52Z), 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/LVL152104340.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x94bbd1304495bf6b93694c82a29bb6d9328ae5528d964f382b634a9537937d9d. 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/LVL152104850.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd6097970809bf2c85af259bc73714fe1f00b30627a35bdc61103d7b4fb0443a7. Chain 2 (Bitcoin): anchored in block 960284 (2026-07-30T17:23:26Z), 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/LVL152104854.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe7895c1fb5957e336a70f6b2c81ae30f86fa4ac10805f0d9f8be8158017477e3. 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/LVL152303041.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0e945244c1ecb402ab07d0efb473400c99ee2fc8e98a36b1b4c9b91b0d480c96. 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/LVL152203802.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9a4f4c60b39878eecb8a9022acd37ffa777341d2c1f2843b6c5968de1780e6b2. 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/LVL152200233.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5c0b450cfc69f36e7b201583120c5d426f781685d63f613b2e92a4d1979f22e5. 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/LVL152200203.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6128256dd72e809831035c249db9f8134299a9684f8f0e60239aedaff2c35df0. 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/LVL152200801.