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 0xb616c0b1d7962c1beb02af165f39eaecb37edb027c0aeff68c57957dc0ce478d. 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/c64cee8f-c5ff-4067-bcd0-5bbebaed447e.json and https://artists.proofprofile.net/proofs/artist/c64cee8f-c5ff-4067-bcd0-5bbebaed447e.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 0x741aa5ca644fa0ca615fd823330e38bcd81536ce842c6e4754ec77763e0d0960. Chain 2 (Bitcoin): anchored in block 958263 (2026-07-16T08:19:47Z), 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/DGA062266596.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd24e4c20ccb15b40ada0e09555391db82d9070bfdd40ff61d18cab81d1f43305. Chain 2 (Bitcoin): anchored in block 956861 (2026-07-06T01:57:57Z), 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/DGA062248388.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x48bb15ebc2aaa3f62a16699ee5d9010eaaa5d4eaf6944f88a2043ac0defd1f05. Chain 2 (Bitcoin): anchored in block 956639 (2026-07-04T11:19:20Z), 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/FR10S2365540.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x336df3ab6db94ce1455be161da475424ca42d0aa87096a78eab83906a404069f. Chain 2 (Bitcoin): anchored in block 958726 (2026-07-19T11:47:20Z), 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/DGA062248358.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd5557b6f9e5cd76318c0c6a264d4f805993e8dc9363aa1de046cb0caed4e5c9f. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), 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/DGA062267184.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x18b2e4e6acc70b68ef05dcdf0314b4e588f0c3904b2a6bef44d1ecfe5c35cebd. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), 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/DGA062260543.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2dbee5d74d849014c20df177387f98f4e705957bf5073913ebea74d69e70c348. Chain 2 (Bitcoin): anchored in block 958779 (2026-07-19T21:08:39Z), 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/DGA062260533.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x356bf3cb2f6eeef1de2a2ac5bb60603bc29abb4e426c0f738a31f57df8bdcb2f. Chain 2 (Bitcoin): anchored in block 959100 (2026-07-22T06:50:02Z), 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/DGA062266594.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1411cc8d3a7835af8077b4ca6933cc015d1d942d223ea3609ed510ccef4bc3d0. Chain 2 (Bitcoin): anchored in block 958203 (2026-07-16T00:08:13Z), 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/DGA062260532.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfe119bb8a8881a89dae5069d15a87e09835a100ace17b220eb564adaa7ea9d8d. Chain 2 (Bitcoin): anchored in block 958711 (2026-07-19T09:26:32Z), 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/DGA062266617.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x53a1f1834e386cdef9193748aeeccdf5e57b18072bb5da071834edb31925dc69. Chain 2 (Bitcoin): anchored in block 956639 (2026-07-04T11:19:20Z), 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/DGA062267183.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc6854988dfcedb8e98bb62e7dd6564aff0c1becaafed5da8fd73330322ba6aaa. Chain 2 (Bitcoin): anchored in block 958996 (2026-07-21T12:35:58Z), 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/FR10S2365535.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe83e6daa7b78fd29f85201f45784be1774b314952bc90ec35996640431ab9148. Chain 2 (Bitcoin): anchored in block 958166 (2026-07-15T16:43:39Z), 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/FR59R2316373.
Ula Bangger-Bangger (Sumpah Kalah Perburu)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa3b5a85333d26a5bab7e28faa639650e8b35df72ee1c28c211835d72eb5928a8. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), 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/DGA0L2449351.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x69d040e7ec43408e2edcd7a2583001958391f9b8ffd9647f0978f0a66346b49a. Chain 2 (Bitcoin): anchored in block 958711 (2026-07-19T09:26:32Z), 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/DGA0L2449361.