{"copyright_id":"0xacbce8f437fa92cd608cef367b73d8a5bf58192dac9df15fa5e999abf8c1b433","name":"Kinderliedjes Baby TaTaTa","registered_at":"2026-06-11T11:53:45Z","symbol":"NIM0020060","token_address":"0x8dacfc2039a8410eff0ce6948dbfe12cc7bd8cfb","type":"artist","uuid":"0f668fc3-1654-4c6a-aa61-599b61e48ebf"}
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 0xacbce8f437fa92cd608cef367b73d8a5bf58192dac9df15fa5e999abf8c1b433. 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/0f668fc3-1654-4c6a-aa61-599b61e48ebf.json and https://artists.proofprofile.net/proofs/artist/0f668fc3-1654-4c6a-aa61-599b61e48ebf.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 0x1c8a55a274fbc0a14a6538b2efe3b72d27f374eca5cc53028ea37456ceb5066b. 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/NL6VJ2237579.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x31b51f25d9f4500d457efe0e463fdc66e4511c1a94655dd10cb215bed71d72eb. 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/NL6VJ2237582.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd226dcdbce79e5af1879f88b671dad8dfabf498654aa972f82bac352a720d367. Chain 2 (Bitcoin): anchored in block 960500 (2026-08-01T03:13:03Z), 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/NL6VJ2237577.
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 0xe02ff2de14817fc6cedf46a28525a19c61d25665649d8e442c72fbe065967e95. 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/NL6VJ2237578.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5e6a520e8393f4cfb1c0c194f99ccab11c7dc501910111fd53933d0e9a6fa73e. Chain 2 (Bitcoin): anchored in block 960506 (2026-08-01T03:50:58Z), 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/NL6VJ2237584.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa1432816831e7cdea2487d76cae145f6c66361018c5ca3b04522852495df49d2. 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/NL6VJ2237570.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x09e39355302872d85efb1ff26b1bc22a1272e1a8b85b7649b14ae491e2287d2d. 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/NL6VJ2237571.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x40bf6f3c25feb1c129ce34047cbb6b8eaf079a3883799621bc30f75f5f077c11. 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/NL6VJ2237572.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x077bda76319749ca816e892c0b9c9a85ca2bf890f29b4a99144629a3c8516115. 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/NL6VJ2237574.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5f03d32764de9da7ef966503b938d8c80507ba4e7a667dc9775b25e333a15f58. Chain 2 (Bitcoin): anchored in block 960337 (2026-07-31T02:51:48Z), 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/NL6VJ2237566.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x52b20d5e01cd805481714b03982c9847bf0b15b16946b4e97b103c3c0248aca5. 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/NL6VJ2237559.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbb434e69a34fcdec43a9f37e63c79f488ed7987e99160092330a82b51b817ce2. 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/NL6VJ2237546.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe79ffdaa03bf42afcd7b4857a9a921a053fe7e92242595c65eca8ad6c9e8b917. Chain 2 (Bitcoin): anchored in block 960473 (2026-07-31T22:27:44Z), 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/NL6VJ2237554.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf017931448376564001d5cd73c098a5fae93e6dc42973059b6da7b1b47442353. 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/NL6VJ2217546.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0a7a695bd8de78a5042dc5d7451ba457c562f6df034d5f105504d494157039f4. 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/NL6VJ2217547.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9389bb683b45a742533ec387190b037478190c1e8a8af8afb550161709fa1ef5. 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/NL6VJ2217551.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9cd3f1611362202244fc729307cd56e5001f3d6f49a01d627721a5b627a6838f. 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/NL6VJ2217553.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9320a5dcdd96692d87daeea18f9b37780c744cff80381865b998cacdc6fb044c. 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/NL6VJ2217555.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x34776e94d99a6dd2c0303a987e16a43c8a040f65b2f000ff1974eccb2f59e8f8. Chain 2 (Bitcoin): anchored in block 960216 (2026-07-30T06:39:12Z), 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/NL6VJ2217548.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3789a57920b289d8af18203b485334db5e1ed1a9a43954becabea68348f0a743. 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/NL6VJ2217550.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9c3712f03f990269fc4ff2be59b00d24466703e81182985e2197ee3b18f19ceb. Chain 2 (Bitcoin): anchored in block 960481 (2026-07-31T23:51:35Z), 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/NL6VJ2217552.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6d1e8391d67bd9070c5b721256851bf2412a8feced3d88343890e09dc3707d35. 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/NL6VJ2217554.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf208dad8db8c52c3c9005012c4cdfd48dfc62d03a2c391dd1862d4a142df8a9d. 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/NL6VJ2217493.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x04131ba1c141be08877dd36faf37762a1b8a630973fd9d6ab500f379f245f270. 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/NL6VJ2217495.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x94372ed0a92ff7c167a6071aef5c7ef36ef48508e77b11a5faac5ab4630035a7. 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/NL6VJ2217489.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4ffe9bfc6e793cd0db9bd3ea94d85eacc9c594b1f6cca1ec4c0b3e6ff9e7023b. Chain 2 (Bitcoin): anchored in block 960360 (2026-07-31T06:42:11Z), 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/NL6VJ2217501.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x421b7dd2a9bf9521028395dc5d257eb0b963718ef99546ff996397b6a093b9aa. 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/NL6VJ2217488.