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 0x66f801f0d0d0eeb98d28d42a2bc79ab350aaffdd1a9d09f03fe2071070b7058d. 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/9a39a15c-4def-4dd4-8926-a3f017fb40d4.json and https://artists.proofprofile.net/proofs/artist/9a39a15c-4def-4dd4-8926-a3f017fb40d4.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 0xf88597512cb5f13cbe0dcc8cf2dda2d945543acc03b54cc5c48e8fa7e58e27ea. Chain 2 (Bitcoin): anchored in block 958965 (2026-07-21T04:29:05Z), 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/FIJKA9600053.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x38b5f9f7e3eef8a6b1686ced917d2f9440ca6fa93b9de89d13599361520cdb30. Chain 2 (Bitcoin): anchored in block 958935 (2026-07-20T22:08:19Z), 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/FIJKA0000321.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xebf119d95b76584c96782f76987df475d2246ecb4a23bc5f38eb5ba43ef63404. Chain 2 (Bitcoin): anchored in block 958917 (2026-07-20T17:53:56Z), 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/FIJKA0000323.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4af52f0c7d878990a88c77560e5da7bdf4d9ed985274d13505fcd7228aa200b1. Chain 2 (Bitcoin): anchored in block 958943 (2026-07-21T00:27:37Z), 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/FIJKA9500235.
Taksilla Tallinnasta (Alla Kellertävän Kuun)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8ddb0f2af6b208f570fb044e1933338c308c960396e9ed597243e74ab6383d39. Chain 2 (Bitcoin): anchored in block 958667 (2026-07-19T05:04:54Z), 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/FIJKA9700037.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x29ed3606f23ab05beda1e8c820a87ed1b3f2d812ca6455758b3657da42e26b1c. Chain 2 (Bitcoin): anchored in block 958541 (2026-07-18T11:37:54Z), 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/FIJKA0000313.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x70516247b46eb0d4a7acf1acf93974278a339e5b029430463c95075a59d7d20a. Chain 2 (Bitcoin): anchored in block 958656 (2026-07-19T04:04:08Z), 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/FIJKA9600043.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x880f6a5610c1144ea3b370868b1c95be645b2f6c0403d7e665ca28022459d1d2. 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/FIJKA9700039.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2539450d489da27c451e6f035f32f59c947e28baac29f30558259e57b3bd0333. Chain 2 (Bitcoin): anchored in block 959037 (2026-07-21T16:59:47Z), 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/FIBV31000036.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc9416a0452778aa9336833f03553acf1bc9a0815804252d87c7d20ce2eb684fe. 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/FIBV31000037.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x428ea0bb3f4e578543eff42bed027be079814fd1fee48c0d06c7440d6cddc5d2. Chain 2 (Bitcoin): anchored in block 958157 (2026-07-15T14:30:55Z), 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/FIBV31000038.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x82998c6ac6f7d661291568ac9df07d5b5e703916f3695aed9a2c71888b885df2. Chain 2 (Bitcoin): anchored in block 958690 (2026-07-19T07:14:39Z), 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/FIBV31000039.
Pizzan päälle mä haluan sut - 24 Tenkasrallia
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x98029e5a178de59d93dd8afda531a5fa23fe35fc496d7fccc4694c5675fbdd94. Chain 2 (Bitcoin): anchored in block 958942 (2026-07-21T01:39:40Z), 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/FIJKA0000315.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4af52f0c7d878990a88c77560e5da7bdf4d9ed985274d13505fcd7228aa200b1. Chain 2 (Bitcoin): anchored in block 958808 (2026-07-20T05:33:12Z), 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/FIJKA9500235.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x10cbda309c200ca7eb443db02be8114d18bfb27629106f69207d032d90a945a6. Chain 2 (Bitcoin): anchored in block 958388 (2026-07-17T09:14:21Z), 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/QM6N22146611.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfd652033c3133ab77e0a8735d310810b717a4f220763b58b2a31f1de49ac0a67. Chain 2 (Bitcoin): anchored in block 958601 (2026-07-18T19:27:02Z), 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/FIDUC2200002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd9f6c64ebc8a839922e0887cd47cf6c89e5b7ff89c174bcbf47255d3a6a29ae1. Chain 2 (Bitcoin): anchored in block 958300 (2026-07-16T16:14:30Z), 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/EEGU32230001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x556e8e744a55643ca718d24c92a58de24d325851169f85ec43eeb49fa3cc662f. 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/FIJKA0700017.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8de284650aeb56ecc6685a8f0aa061232a7201b1dd4ecd2bd6136118b37b49f7. 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/FIJKA0700019.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd26ed06231e899152f103018dbfee86e4e599fe77965b991f36b2c1e2ee21f8a. Chain 2 (Bitcoin): anchored in block 958538 (2026-07-18T10:30:13Z), 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/FIJKA0700022.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd08d95572a08db12ecb6fa694bc2574e8dc48571aad1cdb631668742de8ade3f. Chain 2 (Bitcoin): anchored in block 958234 (2026-07-16T03:46:09Z), 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/FIJKA0700026.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x828326148cc5a69f54dded84430487cf0b06c9edc8e8ef8ac2a3fea5c6455f16. Chain 2 (Bitcoin): anchored in block 958224 (2026-07-16T02:28:43Z), 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/QM6P42360578.