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 0xacf06fc9b405b77da8e978652c9915c8cbd27c5ed459a8cf4b0a04478f7a5cd4. 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/3d2c3259-083a-47f7-8c1b-29d6bd79b26f.json and https://artists.proofprofile.net/proofs/artist/3d2c3259-083a-47f7-8c1b-29d6bd79b26f.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 0x7f9addee3a05344e11aa58d45962fe0d4b3fe21430aa19228a8f935057ca0830. 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/NLZ542300501.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf94dd68825ab3705a7dd669ad207e29bd86eb2bfaebbc0d8e6f0d22df2ac7afd. 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/NLZ542202427.
Watch Out (Kryder & Thomas Newson Remix)
Watch Out - Kryder & Thomas Newson Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe71756394441573e29065aac58410bf60ebbbba5d5c65b3930883a7a9547ac8e. 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/NLZ542101852.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xab975221d6cd3dd69525f486a7acf4d57d1be11cb22ebf8539b0d0131da32ccb. 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/NLZ542101545.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x01a653a32f86f79889b0efc456bc95419cd2f50d0e194c603a4eaa3e064567f8. 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/BEIW12100015.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x694b68ef17a308d2f24e068d7920d1f109d8ed07229f68abc3fdb048815b414a. 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/BEIW12100019.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcb3dcb2afb4679619dd0e6e610a81d2e3f2880ec00bed625be928257c7574d9f. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/NLZ542002062.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4bf0bab549e49eb53cb07ae12a3c38ae58727b6fc2b61a5ba612567e0d2a68c2. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/DEA622301241.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9754a4b98949db13408a01acb66d4ad53c3d5d9cd21d91678c3e246deea98b93. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/GBLV62316849.
Fiesta (feat. RMA, Lyon Monster) [Extended Mix]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe82d9818cfc0ce14aa71fdcbce78250c2a7c2308b2cc5f902b3485fdde3026b4. 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/NLXV51300711.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe1af4303dcbabd0abc63a4d26f577a41af758e1c9bf7e236589bc7725fbbb97a. 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/NLZ542002061.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfe630f046f1ddd16f0198927df213903f57e2cc1323dcebf15854b311d070347. 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/DEWM91800279.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0df5bf6cc3d9cd61cd9e7fcad373c304a3aa0f497847dfe112e2d5ddfac62f0b. 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/DEWM91800020.
Bonkers (twoloud & Bounce Inc. vs. Daav One)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9c362546c3e006099a63ed13f46a712c101d110a17fe032a4f1370ca24be9bd9. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/DEHK91689878.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x29c9b022e24bed61fbdd7bdec3a26d2d9b822046d2f7dfcecfc4e39dceb12dec. Chain 2 (Bitcoin): anchored in block 959134 (2026-07-22T13:34:27Z), 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/DEHK91688725.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7878d48b903e63c78159dbd7b0b4dfe6d57e73d6d87164b5e5ae97c32dc64b34. 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/DEWM92000308.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe57d08c6b6e5e1c67eed862ce26c3d03479331a0a535ed71f4938259c4662995. 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/AUCN31207704.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3ed3b3d9566e15571e1c7a2ae74533d53c8d769b951d9abe4117bcf7c7a3fcaa. 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/BE6F49900018.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x411b764a2d9db4c92531ae5f9e02709ef865974f3f9ae99f36640d10ebe2c139. 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/QZN882219404.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5af3eaac7a0181ec299cc2e3c1a5507bab81e965f93b576fc6ad454429208876. 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/NLP6C1700004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3abc1f80ca81828533ca4111bcaea6bd26538dc551c78be185dbc8e9299f9290. 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/DK4YA2277503.