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 0xa278fa55a9c83868ce20ecb5b0a5c27a95ee010ed4133bde0497e0720c9d1731. 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/94b5b83a-3fd0-414b-8ea7-f0b73ba10c6b.json and https://artists.proofprofile.net/proofs/artist/94b5b83a-3fd0-414b-8ea7-f0b73ba10c6b.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 0x7f7171476d27c933cfe0544cfa715a2a094b5f05b308f7365ba6f8f18c862c71. 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/FR4OE1600005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5d27425aa49ac36f2468a5ad4efe0472c8bbf4da86f9190883254f3ddf08e803. Chain 2 (Bitcoin): anchored in block 958700 (2026-07-19T08:09:50Z), 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/FR4OE1600008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x04585365c8c731291946dc05e6f287d0e2dc23dc3d43f01fe3da2c35462f17c1. Chain 2 (Bitcoin): anchored in block 958169 (2026-07-15T16:16:18Z), 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/FR4OE1600010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeb3b5179febf0a2676a1d7f9e1498c01fd877d150cc7795c88137a2510b4d225. 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/FR9MX1800005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8da320c4323abf9a5186acb14164d1ed2e409f89f4572a5c410521537c23c66a. 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/FR9MX1800006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xce726897a4bffdaab742ff38884762179703822dfafea4b6b6e085efce0c434a. Chain 2 (Bitcoin): anchored in block 958340 (2026-07-17T00:53:26Z), 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/FR9MX1800009.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3a21a3c1421806dd57a25af824c85a32b45293078917f6d73a9f3084f8a7641f. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), 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/FR9MX2100004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x98779f827c98c64e8238a99bad87f13e623cf34d356fabf8a2775444a8fcc5cb. Chain 2 (Bitcoin): anchored in block 958134 (2026-07-15T09:14:08Z), 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/FR9MX2100005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfd7e0f09db2e0bb5447b1cdd0fe877d0ad3a81f8f619997a875b1edba5ded56b. 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/FR9MX2100006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8f0971e5874f2f8416ea9c3eceb15fbf238205fa48e4d985fc660ef0b3ff280e. Chain 2 (Bitcoin): anchored in block 958621 (2026-07-18T22:59:44Z), 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/FR9MX2100008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x335a28c0aff620c005f98b3dfeb6ecff60ff619fc269eff1aee32ae71fc8bed2. 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/FR9MX2100009.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc2633c7903b0cddb0940a9ba01ee9136bf888687d65ceb73f028322fd33b564b. Chain 2 (Bitcoin): anchored in block 958985 (2026-07-21T08:39:15Z), 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/FR9MX2100010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x574c938cc413780a6141c8da1250b4d6c4fcc9eca150f7902c26a182a810ef9e. 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/FR9MX2100011.
LAST NIGHT A DJ SAVED MY LIFE - Bonus Track
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeedac102cd5de18bd84e840364d939d72b72443eee425363a36d8021c11d5423. Chain 2 (Bitcoin): anchored in block 956711 (2026-07-04T22:48:52Z), 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/FR9MX2100012.
WALLS GET CLOSER (feat. Pablo Van De Poel)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x052640debeeb97c3047819c0f1a27ea9a93fb985381b6f73465cfe1cf32c0e35. Chain 2 (Bitcoin): anchored in block 958420 (2026-07-17T13:33:01Z), 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/FR9MX2300002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xad941a176da645e750fbcb743ec9d59a56fe8b02165639decfb34a16283515b2. Chain 2 (Bitcoin): anchored in block 958276 (2026-07-16T10:20:17Z), 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/FR9MX2400003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5868e9cbc97d05e5428ea88a5452882ea1f5d7d6424d945ab1ae7eb103bfdd62. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), 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/FR9MX2400110.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb3d2b26ad1ec83d92a4f3352219bf41d0b3777d18b9878bee322341550ac8da3. Chain 2 (Bitcoin): anchored in block 957801 (2026-07-13T04:17:08Z), 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/FR9MX2400100.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd171fd0d6dd6817187c89cd3190b056ca415ff1c673e267a324a45043f3250cd. 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/FR9MX2400150.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa0fb37998721ddf369efe9cc7c0a1163de7ded7ebf3124cce010ee7870465d5f. 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/FR79W2400390.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe0bef1bd24e6fc3a71e0c7980b5b264883e5f8da9aba42f737183893f785c31c. Chain 2 (Bitcoin): anchored in block 960500 (2026-08-01T03:13:03Z), 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/FR4Z62000015.