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 0xaec198bb5212af8ac9aeeb0ba14aee97338accbd318994bbd4eadb936a59d9d0. 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/5c7c599c-31ac-4306-85e9-0f10d5c563da.json and https://artists.proofprofile.net/proofs/artist/5c7c599c-31ac-4306-85e9-0f10d5c563da.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 0x014dc0ee63215cd58da8a492b853cc6995def0eec1ebc99a63b171ddc44e39f7. Chain 2 (Bitcoin): anchored in block 958228 (2026-07-16T05:08:44Z), 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/DEZ651369730.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe5d8550e7c5413225759603b1f415db4bd1967b4fbf18943e0836cd1a0a18fc6. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/DEZ651700203.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x45cbffc9fb244f3303cd90ae8d37d59b3dd2c412bf92c3e13a024ac9892f209d. Chain 2 (Bitcoin): anchored in block 957891 (2026-07-13T18:21:04Z), 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/DEZ651700204.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x53b81e8561c5a749d4bd97e75313dd635d39f41770ab9e36b7303e7b6371a069. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/DEZ651369729.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7659cf1b8239ce945ef9532fb345921378bb62eded63dc8cc0b4680b211269e3. Chain 2 (Bitcoin): anchored in block 956474 (2026-07-03T08:56:35Z), 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/DEZ651700205.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x42f05bef30b5bba72c7eec4065aa0718696a0facc5ee3e64da3e5b570caddc28. Chain 2 (Bitcoin): anchored in block 956576 (2026-07-04T02:06:47Z), 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/DEUM71802546.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x92088baa6905c13c0bc5c6793bd6459ec0c4d65f3faa3a8c1f92f766756f4141. Chain 2 (Bitcoin): anchored in block 956576 (2026-07-04T02:06:47Z), 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/DEUM71802547.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xde2fe3763b73f8e185ff7512d24d8bca52a56fe702a1bcc747d4e0e0bf3982b3. 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/DEUM71802552.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x473a81505c265c383d672d70284af04efd6a7f2662f0651af6b8171930baebc6. Chain 2 (Bitcoin): anchored in block 957891 (2026-07-13T18:21:04Z), 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/DEUM71802554.
Complex Happenings Reduced To A Simple Design
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd1314e00f039fc698e1095175ee6bc9d2191194f3c92f56d5ce34cb093722a05. Chain 2 (Bitcoin): anchored in block 956476 (2026-07-03T09:04:44Z), 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/DECE72002519.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7c9fb4a94f3b71e440c64ce43e74f29eb916e25410ad76568672e9cd22419471. Chain 2 (Bitcoin): anchored in block 958455 (2026-07-17T21:28:36Z), 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/DECE72002526.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x276153a3a8856cee3c309a45572de63b6f08d6dbf650905c5e3bb7f0860da766. Chain 2 (Bitcoin): anchored in block 957872 (2026-07-13T15:39:45Z), 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/DECE72005832.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6ed4ea202acac73381a520c5e08fc4b6be04e55a1d99ea09e424a1eb84abcf39. Chain 2 (Bitcoin): anchored in block 956738 (2026-07-05T04:47:21Z), 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/DECE72005834.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8a72a2fe712d04c2020854ef9246be991b5c966ea6393c88a352d09be43beb33. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/DECE72005835.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7bd1b8425fbb0c850c4dda06219805aa012e3de9407d86e2969ff7b67f1aca0c. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/DECE72005836.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf8e4a54bd37e73249d7b82a6de5084596ba9798a071e433d7388d2403f190687. 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/DECE72005837.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1a3ef9ec1a52b6aeada14c40bd257c39bec032c7c31cc77b4970ec8cd4f2891f. Chain 2 (Bitcoin): anchored in block 956738 (2026-07-05T04:47:21Z), 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/DECE72005838.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x636a789ba8809c5eb1a987214aa054705745fd161f9e96e9a95a3cd933f99ef1. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/DECE72102409.
Never Never - Reeperbahn Festival Collide
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7d7a9f00fa13d52a02c4498013c32a14ed3915bb1c44fd230cdb2f5ceae4f2eb. 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/DEUM72410288.
A Million Heartbreak Songs - Reeperbahn Festival Collide
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1e515f1f4f8ef4b4b57fee16dc5d4d56029273e06516cd0e6d3e7cc5ed57990b. Chain 2 (Bitcoin): anchored in block 958228 (2026-07-16T05:37:11Z), 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/DEUM72410289.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2cf38f2dbb00810c3c00be9366e7d10c6d9cc47ace1fac72bb22d2f3ab01811d. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/DERK42000041.