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 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 0x89cf6da0ee794aebebbe9aef6e1ed596dde6d8d70dfd40d86224fe1fac9222ed. 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/302678ac-c1ec-4912-9681-8043a64e4390.json and https://artists.proofprofile.net/proofs/artist/302678ac-c1ec-4912-9681-8043a64e4390.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 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 0x14a6263cc952e89e1f3f1b755b7099d264b7fcf35f19d9957ce8cfe39ed3aed6. Chain 2 (Bitcoin): anchored in block 960448 (2026-07-31T18:48:12Z), 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/DEH742176769.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7e9530e2ddbece5afb60da9eb1b9f1ce3b2f613e37ef61080519a2f8909f7e41. 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/DEH742176770.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdba4013450ab77c085b32d7adae4d7f0a44f3867ddffa715f44065745483f499. 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/GX3EP2604221.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x44670fc97101e6a06aee3f7f296875d9d4eed0b293dd0d4ca754e2cacc38f4f6. Chain 2 (Bitcoin): anchored in block 960144 (2026-07-29T21:09:47Z), 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/GX3EP2604321.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x48ed39ef13131e8aa445e0f050597bbbfd0a199bcb899e3b08542004571a002f. Chain 2 (Bitcoin): anchored in block 958331 (2026-07-16T21:55:37Z), 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/TFT202300001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe86919491ab3b3abb84eb5290c26551d52ec6d545c86c9947f7e86604278e1d8. Chain 2 (Bitcoin): anchored in block 959100 (2026-07-22T05:29:55Z), 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/QZMHL2329860.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf48bada8adfe57977c7163a0f7143b47d78abe7a0abe803712d2103a8a4c07ab. 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/UKN6K2300438.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7b13811f42ba1fe747fbc147ae8b7917b343499bf2dbee030b9eccfa8b2fd811. 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/UKN6K2300439.
Corrupt Propaganda - Johnny Piras & TORRE Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x44a06c7e8d348700c65f19f0b165bf7e8fa1ceba36bebef486edf6c316ca541d. 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/UKN6K2300441.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9fe5cd7c16f6ef237ce5f2e96e3db2d1d7a6df265accfd79b368010259114cd5. 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/TFT202300055.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb407467b255ec5e30f5c00c9eefd1105ca3d9ee0245b3e4b2dc7d7b44a880f74. Chain 2 (Bitcoin): anchored in block 958582 (2026-07-18T16:47:25Z), 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/TFT202300056.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbc8aef3234681ace8f0e89baf52cf53d42318ecda7445cc8215b32de40a5eb6c. Chain 2 (Bitcoin): anchored in block 958390 (2026-07-17T09:35:49Z), 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/TFT202400008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcf1c5fa06d223fe12152f8ee6fcaead4e78f5c7943528567ee9a1ce53b03cf5c. 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/QM8DG2486980.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf9398ac16b30997d51dc8c9a095d286d12f2060f2b55ef3bdbb4953b5770199a. Chain 2 (Bitcoin): anchored in block 959058 (2026-07-21T21:09:36Z), 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/QZMHL2510838.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6c631ba2c7bcd21a7a3ba2dfbb4665196929a8c8321b2dafcdda3bff240540c3. 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/GB8KE2502807.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2b327846df0a7561af9c1c33b02f01fae30120562ed4cd33242183a8bbe03a1b. Chain 2 (Bitcoin): anchored in block 958785 (2026-07-19T21:40:06Z), 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/QZMHM2503455.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc3789e2a8dc5ba0f845b7c82f99207975d9346225511485eec04a0eadd6a3334. Chain 2 (Bitcoin): anchored in block 958146 (2026-07-15T10:33:22Z), 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/QZMHM2567948.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc6435f3c16e0afb2fd68f4326d175287a30208524e0873deaeefd09aa0c1be22. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/UKN6K2002254.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa9b5e4c1754fa602031c3cdc6f4e5247e967176e3e066877f8413d3e06649964. Chain 2 (Bitcoin): anchored in block 960163 (2026-07-29T23:20:38Z), 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/QZS662140080.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x39d015cb25fc2089663340678493473a10c3ef938f65861d94351f9682e46b0a. 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/UKN6K2100011.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x14c3d0720e30b4acc8115b9ee710302bb51dbae3df55de7841874f0dd98e1c27. 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/RUAD62000019.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x90079046e34041a3384a5fa3a8e87135ee91f4338e3f843951751866ff5616d7. 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/QZS662191860.
She Likes When I Choke Her - Cancel Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd6ebfd81a880da5f1c8d9c25866a218dc5162a78eb7a61b4206182f27686da5d. 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/NLCK42416657.
She Likes It When I Choke Her - LS41 Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1ddf934bf30603cde23e61a4b907deb1072d6226009dec767005724f9b622122. 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/NLCK42416658.