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 0x265ebbf3f5b6ee5a668a4d5917de93fe29d21cbc12a5ce7cc9a58de08d78e474. Chain 2 (Bitcoin): anchored in block 953423 (2026-06-12T21:20:00Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/ca0b43e0-d941-4b79-9b34-427a05564913.json and https://artists.proofprofile.net/proofs/artist/ca0b43e0-d941-4b79-9b34-427a05564913.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 0x803231162af78c4bfb293c71da369bec70559d40f0e21df42c10aa19004860ba. Chain 2 (Bitcoin): anchored in block 957084 (2026-07-07T20:41:57Z), 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/GB8KE1858007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xea47352b8e9f24abe7124f822e334a3d6b16a10b1ac2d88628ba5c1954976545. Chain 2 (Bitcoin): anchored in block 960368 (2026-07-31T08:26:41Z), 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/GB8KE1858010.
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 Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x65228bf48276e80abe21a65075fc3df655582b88d2639b9e5176ca5adcdf3833. Chain 2 (Bitcoin): anchored in block 960418 (2026-07-31T15:20:15Z), 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/GB8KE1858012.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbdceb7172ec94b5972a2aaa34544d6a94e25075f8bf857cd2bdd54dbc91c6f3f. 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/GB8KE2309966.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xebc5a46adfdc4f8cade237898951fbc807a64942c88b2c1bbc0524017e542b46. Chain 2 (Bitcoin): anchored in block 957046 (2026-07-07T14:04:01Z), 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/USLZJ2331752.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3cc563b97878180b51eb22f93385bc75624435682318d61de7f1e2b0fd05f00d. Chain 2 (Bitcoin): anchored in block 957084 (2026-07-07T20:41:57Z), 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/GBTEL1800235.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1ea83d3703ba9a1350cd72964bada674c3a0f13f039e24f920833b002473478d. 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/GB8KE2203029.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x94491921f11941de5550a52db7dfd312d5aeceb3c509ca0478e4e6fabf088e60. Chain 2 (Bitcoin): anchored in block 957084 (2026-07-07T20:41:57Z), 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/GBTEL1800214.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x55ab19b712da5c63ef405791dcf0269bea7e69ddc26277537afa49b191b74a27. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/GBTEL1800195.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x08509e2ea570cc3353a43d8ce369c292f5d6d66e2ecc83c91f4e2590f5f5b95e. 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/GBWUL1955690.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4f2890d1e42f9cc308e41ff23c15b388f155cd13fe9efa26ed64bf5394278655. 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/GB8KE1850284.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x596b61aff0f92ed5be99173639ece3880e5c0df66ba35f5c0d4a6753493cfb70. Chain 2 (Bitcoin): anchored in block 960302 (2026-07-30T20:09:33Z), 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/GB8KE1850283.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0812238698fffd944e2fd4d2f613172ebe9bd718d2ff2686dfc08a46bd18b22e. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/GB8KE1759430.
Early In The Morning - True Tactix Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa6d4933eaf96e15522a19dc08f66c6d894ae2d35bffa2e6de6dc95043913cdec. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/GB8KE1759431.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfa3fa5e446785c4950beb1b0cf71f084cb22537d9f55fda0affeeda04643da85. 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/UK6WC1400028.
Mashup Di Place - Run Tingz Cru Dirty Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4e839573090fb72b0748866b83721dbf0b132357a04c2ff0828a5ec5e4446791. Chain 2 (Bitcoin): anchored in block 960418 (2026-07-31T15:20:15Z), 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/UK6WC1400029.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb3227d7715afd9e11a9e9dba1372348c76d97a31f247a6355660bc06243ed575. 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/GB8KE1559091.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5d079146e7ec612971df92637711bbc379626130025539110a4451249d8c2928. Chain 2 (Bitcoin): anchored in block 960200 (2026-07-30T02:37:10Z), 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/GB8KE1559090.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3e346ba0304988442e0ba3881e427e23fef0d8fbc52fb47e602076d66e14b301. 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/UK6WC1400010.
Melting Pot Records 17 Ragga Jungle Series, Vol. 3
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa33d3901ae24eb0d365f9112ef85bb058fde1ec1718f31359b308eeb3d346ff9. 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/USLZJ1429410.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf855e3bd970ab50f83b18a288d94d5dadf96ec5b29a57ca5a7b6e3b724a0b036. 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/USLZJ1429411.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaf630319c97efdd399cda3f4bcd60eae645bd72c587afe8699ffd611b9b50546. 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/USLZJ1408965.