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 0x548ccc8d4e3ba6dd03e547cf11cbc8a2b8030c74a1daeea7f6baf7298c6d7b86. Chain 2 (Bitcoin): anchored in block 953408 (2026-06-12T19:28:13Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/722e41be-cbca-48af-b49a-b31b135fe75c.json and https://artists.proofprofile.net/proofs/artist/722e41be-cbca-48af-b49a-b31b135fe75c.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 0x15d46cd6a7e24c2da2686dce92e1d580564e3d13b5c2a9f1f842b7970d31473d. Chain 2 (Bitcoin): anchored in block 956857 (2026-07-06T01:26:17Z), 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/FR2X41972855.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xed765a692770dfd9e0e2a66305684c046a10870f2fea9a65ced445c6e451f695. 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/FR2X41972856.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3649d793d6ab66dbba19b1d7c995ecc6bf20faafcc9db7a2ec5d3f483f8f93d7. Chain 2 (Bitcoin): anchored in block 958977 (2026-07-21T09:07:07Z), 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/FR2X41972858.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x111b3612aa50046942f37f4ad1d11c020d4b13a4984db76d8c0259d6761a25ce. 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/HKE952161803.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x15ea1c461203f0802d93b972f667cce5a64a10e84d8b69d17f041ca797e900f0. Chain 2 (Bitcoin): anchored in block 957868 (2026-07-13T14:56:55Z), 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/HKE952161805.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbceb3679b8b58754bde02123160d0dde070b34840fd94f3294b063697a4e362e. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), 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/HKE952161808.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7c342470b108e5aa857f4ed4ecc7b882ecf296b924cbc2d00a61e9c1da1e1343. 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/HKE952166417.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x37d3f67dd08dcfb10cef56489af5a811912421a0618d3cbf39e85cc12b7feb56. Chain 2 (Bitcoin): anchored in block 958617 (2026-07-18T22:07:13Z), 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/HKE952166407.
Rinduku Untukmu Cinta Handzalah & Jamilah
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa4d65fbee182e2a6c69e5d012c27845c4d2608166a2ca6316011ffd203d1036c. Chain 2 (Bitcoin): anchored in block 958897 (2026-07-20T14:57:46Z), 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/HKE952166409.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcfb89e725f904abc463300672522137db59704a9a26d9de248bdab1f66c819d8. Chain 2 (Bitcoin): anchored in block 958918 (2026-07-20T17:58:04Z), 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/HKE952166410.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf4cfcb57a98367b8a5c027a77a922277533b642bed8b4937738a0e41a3e0321d. 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/QZWBE2329489.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8f84596146a560668de54f6dc168147f9472e6a6c96167897f7bd7f0acdcdf45. Chain 2 (Bitcoin): anchored in block 956728 (2026-07-05T01:43:49Z), 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/QZWBE2364979.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x91834e65245e8a044f9b4fd1ab4dd00acb0aa5bca118872f4402d7d54f9d2045. Chain 2 (Bitcoin): anchored in block 958420 (2026-07-17T13:33:01Z), 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/QZWBE2364762.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x028111f601a199eca84b99f3a490aa949e82b81f203d7ad7c5278535b09dcb5f. Chain 2 (Bitcoin): anchored in block 958897 (2026-07-20T14:57:46Z), 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/QZYHM2400185.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe95e9c029afcb06cb0366dc4090ba9323d1330e48968249b8822613accc89a31. Chain 2 (Bitcoin): anchored in block 958945 (2026-07-21T03:23:24Z), 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/FR59R2472374.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x64a2fcda6341a4f2800d4fb6d4769576d175cecbf7e7923526a9f1bfbfa9af48. Chain 2 (Bitcoin): anchored in block 958846 (2026-07-20T10:45:38Z), 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/FR96X2427062.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe47b07455edb262cab5e718928f8566d7efa6ac3954b836b059ae0c89709536d. Chain 2 (Bitcoin): anchored in block 958700 (2026-07-19T08:09:50Z), 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/FR96X2488587.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6697eae9935462a8fc3d672a1d5dfa555340f49c24dd4f94cf9ec9d087e87377. Chain 2 (Bitcoin): anchored in block 958691 (2026-07-19T07:19:31Z), 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/QZYHM2412934.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x243ccf62fe18671fa1fee60cb3077ba6652ed9605e5e8cc7e7bb41fed3ca10f8. 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/DGA0L2460757.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa1ec59f2904bf06817c2b71ceeb4200a24747eff8f33c7f5697455c5d7b27c2a. 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/DGA0P2458093.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6c80fa6a1108ab93e5a08c3b25b8b326b7e76af75e271ba8a5539048b325b337. Chain 2 (Bitcoin): anchored in block 958622 (2026-07-18T22:58:55Z), 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/QZYHM2428870.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x082085973754871226df61b221e004a6762702ec64ac4fe29b49ddcf90727f2c. Chain 2 (Bitcoin): anchored in block 956420 (2026-07-03T00:42:11Z), 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/FR2X42515824.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe75bf9f313f1fb5a7915f5c9b25d8bda73eb96e0659d9845a033f823e8ed3b0f. Chain 2 (Bitcoin): anchored in block 956776 (2026-07-05T10:59:37Z), 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/FR2X42515828.