1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. Open OTSProofURL → extract Bitcoin block number → must equal OTSBitcoinBlock 3. GET OTSBitcoinBlockVerifyURL → block must exist at that height 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 0x3443256ee78d762f49f880123d86a9c445690a49f9337ac1947d690fbb696c67. Chain 2 (Bitcoin): anchored in block 953972 (2026-06-16T16:31:10Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/29ec4582-91b0-439d-acc0-e29694dd1e0e.json and https://artists.proofprofile.net/proofs/artist/29ec4582-91b0-439d-acc0-e29694dd1e0e.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 → block OTSBitcoinBlock must exist at that height 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 0xc7484eddf49a7413edd259c81e05ac7c8812dc98bfd6f183c25e38d2d6ba78a9. 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/USAT22404377.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7cc86ac95c5c33e34bd7a37dcc77027fa8e2e8eb03fadc898738e8422dc900f2. 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/USAT22405399.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc7e5670bf87e9e4d56b531ed1fc4274bdc4d8a785f739769f8e94e573d4beccb. 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/USAT22403047.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2a30c4abd309063878b5d02687fb4b1f9af623a3d2428cf819c8830578f36d59. 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/USAT22401679.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaeaec37d838140bd45849bfc880d8cb2a34e384edd00772a28bf948bd2ab0897. 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/USWB12402949.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x698ac29be7b9c5b9f7e21fca75002b5d8ed62a84975c8a4352e15262e41cf16b. 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/USAT22402602.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa12102864a613de1fe36936441984129d187b1398729c35761d28b26f5defab5. 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/USAT22402366.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7e88b485a77bd4c9164846cad5b05a62164f62279981a408e430093263ad4628. 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/USAT22405903.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xea3db8a778381a3fa885f429f82016e4a3539b6dca668db0d22ec6a95f83c90f. 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/USAT22404355.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe6aad89e13ab5d9aa5217545b12809b9bfbe613e0d14bb63455f695c13d57a05. 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/USAT22405571.
Attitude (feat. Charlie Wilson & Cash Cobain)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7d322bed3cbeb5aab5112d63c80817db452129fa32647e3d6dbf35606ee2a815. 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/USAT22402817.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x590a55b3d7103157af4a9c3eff6960897666d740c0cf129c40a282aa8c746741. 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/USAT22405690.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x82bdff710ea59dccd1d9fcd518c2c7386d8f781ca665503d5d66d78f5938fc8b. 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/USWB12402384.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe13a49ddfc07da7c1fc6475f3357df1f35868480f41ee13be8436d7317f6ac51. 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/USWL12401327.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x590a55b3d7103157af4a9c3eff6960897666d740c0cf129c40a282aa8c746741. 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/USAT22405690.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbf52868e44c60ae91892ac1f60b48e3b5de256b881c9fadc19e4dfb553ea3992. 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/USAT22403187.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc011d7e413fb519c31af1305b4eb3f6af6f69fca27f0d34f9becd6f61eb2a407. 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/USWB11100871.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaeaec37d838140bd45849bfc880d8cb2a34e384edd00772a28bf948bd2ab0897. 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/USWB12402949.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc233174d030d954a91c589a816ce560e1977765d3386ce0e61f8c4ed58bbea30. 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/USAT22402999.