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 0x229af452b2d9bd0d1b241b4f5f83ec8a1135d2cfb02c3840fd9227223eac50d6. Chain 2 (Bitcoin): anchored in block 953697 (2026-06-14T21:49:28Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/5332e5a1-1c06-4464-b927-79ab72e016a9.json and https://artists.proofprofile.net/proofs/artist/5332e5a1-1c06-4464-b927-79ab72e016a9.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 0xe944b972f28233ac8f1d994db29ae375385c0906c0f057b34ac42431a296045e. 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/DKCL92000108.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaccc08fe4d889b4b54691581d6353a4c999a462a6b7a7efd0c055f17e9d1c626. 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/DKCL92000105.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2dbe1cabbab2f6200658e65ff3d9aafbf5779fc0bea4c5615f68703bbd71f673. Chain 2 (Bitcoin): anchored in block 957246 (2026-07-09T01:49:50Z), 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/DKCL92000101.
Michelle Birkballe & Band - Special Guest Rock Nalle (Live)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2dbe1cabbab2f6200658e65ff3d9aafbf5779fc0bea4c5615f68703bbd71f673. 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/DKCL92000101.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdf32dccdea0fa78ad7d88f46a91d3dacc6fa53b4370838de04842ccb4b27850b. Chain 2 (Bitcoin): anchored in block 957073 (2026-07-07T18:39:05Z), 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/DKCK92000104.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x058ebfa94cac6ca2b67b8fe942957c4adb75fac1b53baa808cbef20619c8d4d2. 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/GBLPF0253783.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe944b972f28233ac8f1d994db29ae375385c0906c0f057b34ac42431a296045e. 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/DKCL92000108.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9c0ca00f209258e8672e75c97aaebf2520dd5e03e9f351ce731d66033711ccfa. 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/DKCL92000109.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x16bf749598004c060e5257070dab7845c49a4e70686a697ba58e08b9a4b64403. 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/DKCL92000110.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x25c9155fabe790a637e43545b3e48f5bd695351e2c96c3a635cb1e64189dc348. 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/DKNA21906902.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc1f61c48e53eb1a6d53ae2e1137c7990325e0c0b587810877745769b5e6004d1. 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/DKQTA9000104.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6c94aef438f1310c8158ce6c9f7da6f8a2003fbf14ed2b510bbdf7cb10f5b9d0. 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/DKATA1300703.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8298210f7b06d9a0c1041093179d7872243ed0738a749a3b4a3dc54786eadf13. 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/DKATA1300704.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7f96a7160422e14b60c86c987893691bbdf8d003d4419830724b5c2dbb1987a9. 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/DKATA1300706.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbc408409f0b92830f24ddcf77fa52750dfc004df59abb98336a0dfab75805651. 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/DKATA1300708.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x50bd49a084fa82a8f03d2aca9b4da63f4969c435de8754b521e5105fcbb46ae8. 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/DKATA1300709.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf6a518f23c25e59d9a1ff1792b0943ed63218863bfdf1c180529766528048ae6. 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/DKATA1300710.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x65f71de26a52ac95d7d7382520b75cc60d31b3793493b5eacf8d7d28793faccf. 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/DKATA1300711.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe3ffd2208878cc96bff8ba980ea734c34d36aea51942e1977883fb80c7388f70. 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/DKATA1300712.