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 0xe2b6ea31a5979f602ce0ddaa7a24ecd7e51be2e73d101211f5e3cac4330369c8. Chain 2 (Bitcoin): anchored in block 953636 (2026-06-14T13:03:42Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/369fe438-2794-419f-9914-39959886b044.json and https://artists.proofprofile.net/proofs/artist/369fe438-2794-419f-9914-39959886b044.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 0x74f1898ecdb0dd6598850da7010b31affae677bae4071041a95c0b1e8200ec70. 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/CA5KR1529003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc37e99a0dfc02d414558aadd5fcbf9321220dbd99abf916791182a5cab6876b6. 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/CA5KR1529004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x81ae356cd6b92ed595375076b441b954912c621b0ab197e6d11b09a5efd99fd9. 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/CA5KR1562771.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc4dffb4ba4df194cff5f63f42d187c8fc308651edb572a63823ad6f0768d9fbc. 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/CA5KR1529809.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x88f353bb6f5b22d8e52d58a2d7aca51441cb3d67d6321daa7e046f787008de9b. 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/CA5KR1519224.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe5e1f02759f9d1acab1ade44d0e44883383f59ab6c40effc0a02c66c5f71be91. 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/CA5KR1525146.
The Sounds Of Melbourne Underground (5 Years of HKR)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7d05f65f2a8a3fc84788a71293a0812948a8dc7a8477b9a5485255514847010f. 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/CA5KR1501982.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xce760191040d8b7d94d53153baeee89059bd59680415736ed3c349d2df2fc476. 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/CA5KR1530083.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x88f353bb6f5b22d8e52d58a2d7aca51441cb3d67d6321daa7e046f787008de9b. Chain 2 (Bitcoin): anchored in block 957061 (2026-07-07T16:07:00Z), 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/CA5KR1519224.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x34321dcc82914ce89bc1bc45eaf06e3f91f76d18cd35354a39d29084844445f5. 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/CA5KR1532042.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x563766c6ac1fa3c30e9021661f996861fa2b3e3fbb97bcebd40038216d6979e0. 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/CA5KR1535256.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8eba58ff75a50065aad81714c6965d27948dc0d76a4e58f3cfdbf861730f7c94. 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/CA5KR1528270.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x77529b435eb3068f9bc2c73c1a9005d0cc06565093825c26bf0ddd9bd505d342. 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/CA5KR1527615.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x17f74ee507ad22f4b9daa1e41a92a431e7e277570f4d8b0e3054e64bbbf1ebab. 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/CA5KR2018473.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe6921dc9b25ad216cf95768b34a186872d303d64c6b5338ffed4391ef4822608. 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/CA5KR1535259.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa47e07c9b561b8d2bbbd8db1132742b2cca0e0ffe40bb9ab3a06bfe9073cf9f5. 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/CA5KR2078784.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x062195ffe2b8a7e650a32b0a5058e49d148be84d1639269419332834295aac3c. 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/CA5KR1567178.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x408c21e65b5eb68bcd8b7177f0df04428f960fb3c1a1a72da18b7fcfbeb9ffbf. 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/USA2P1829559.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1dd485038bf1dc1767bb26a783617a0153fbb74b102558df2ec5a013f11d0de1. 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/USA2P1802828.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4a26067179ce5ecd57cb75763e858fb5961380adabfda36ca107ce99d1cfc5f2. 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/USA2P1802844.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x971594af26e0f091b15fb4ba6d6343c676a8172f09788a3bd71df53d7679c285. 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/CA5KR1531512.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5a3602c987ea5dc3e653ac9c2ad7a3e6273e81b815379b8037cc70d05a0f3bff. 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/DEKB71611825.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x028fba31175b01a1284f11b1d88372de47fe0ede450b4f89119215d2f9f2b311. 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/DEKB71611826.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x084fcb0df4014a1ae3261434e3b3f854cab734e37693f1347742d5d0af6630ef. 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/DEKB71611831.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6e581ed00de318eda87e7bc996896c8ba0ef1a39b8d12681c9306422aa4640e2. 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/USA2P1803389.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x062195ffe2b8a7e650a32b0a5058e49d148be84d1639269419332834295aac3c. 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/CA5KR1567178.
Blow up the Speakers (Big Room Monsters), Vol. 2