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 0x9d2559f7bb9c03ae0ea08a1cb2371d3a2f8ed535b70a21b03dd20a6f0870eb63. 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/2eefe298-a7e6-428c-a594-5fe1e8853d7a.json and https://artists.proofprofile.net/proofs/artist/2eefe298-a7e6-428c-a594-5fe1e8853d7a.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 0x4651ff437e6bfe1006e0e120009b70e0d4b235b8b93d0dcbbe91315a68441201. 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/QM4DW1641711.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xed3aeda428c303d94489ad19ae891b71717ca433d596f1de773a3b1a3b9e0014. Chain 2 (Bitcoin): anchored in block 956476 (2026-07-03T09:04:44Z), 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/QM4DW1641709.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x30bb13371108b353e0ad9861ad7f483cdf0e0c3a06bace2086370eef527de53d. Chain 2 (Bitcoin): anchored in block 958563 (2026-07-18T14:29:03Z), 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/QM4DW1641710.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4651ff437e6bfe1006e0e120009b70e0d4b235b8b93d0dcbbe91315a68441201. Chain 2 (Bitcoin): anchored in block 956822 (2026-07-05T18:48:28Z), 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/QM4DW1641711.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x197b9de4a4dfbab5398c6a11201aa7bdd138514d98b0aab42724b2cacd6c429d. Chain 2 (Bitcoin): anchored in block 958788 (2026-07-19T22:07:06Z), 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/QM4DW1641712.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x463bc51dad696d705f742b1cef69b7eac0b13d3a4f6e4b42346e010bfb66cf66. Chain 2 (Bitcoin): anchored in block 957805 (2026-07-13T04:34:37Z), 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/UST8K1680337.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xea4d63319f1b547d695b6c76a60340f0d75bcb922a427fa8e0e064cd23c188c9. Chain 2 (Bitcoin): anchored in block 958607 (2026-07-18T21:01:11Z), 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/QZHN72096267.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x41d5dd34a0fb1992bc10e314cc51cb2449dd52b2bc2b41e24fa5bac01c1d6268. Chain 2 (Bitcoin): anchored in block 956745 (2026-07-05T05:33:35Z), 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/QZK6P2055253.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf53eb042f177d060d87f7365084800fffd8c24ddb77d1de8e101bb40b8c8f027. Chain 2 (Bitcoin): anchored in block 958897 (2026-07-20T14:57:46Z), 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/QZES72090237.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xea4d63319f1b547d695b6c76a60340f0d75bcb922a427fa8e0e064cd23c188c9. Chain 2 (Bitcoin): anchored in block 959043 (2026-07-21T18:40:26Z), 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/QZHN72096267.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x549bc5f936d3c1a20336dace2e3b8c23ddc9f34bfa76adec5d7323787ab0a174. 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/QZDA82199801.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3bf3a15c811d626190f63f371e6cc553a19a262e32ed2dac6cc138a3e9d296fd. Chain 2 (Bitcoin): anchored in block 959054 (2026-07-21T20:19:31Z), 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/CAN112100763.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x24a97ff358bea48ecc224d4b740ebf18604cec86640bd5fd885d7dd048c89206. Chain 2 (Bitcoin): anchored in block 956474 (2026-07-03T08:56:35Z), 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/CAN112100969.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6030026a8e96e9bdf6076fcf1af41f470958f256f076a97ab85a6010435be894. Chain 2 (Bitcoin): anchored in block 958517 (2026-07-18T07:54:29Z), 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/CAN112200046.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8065f81b4e98d09574066fb8f6552be5d9665b0d03261d9ec77de8466d23fc11. Chain 2 (Bitcoin): anchored in block 958176 (2026-07-15T17:14:36Z), 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/CAN112200237.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb5705b9408408fb6a9b039b48a6d853b8a7983cd8133bbd8f4344378c0fa493f. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), 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/CAN112300563.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9adc370841e9d69814b251d874d7475e199b01b1038ca525a214fb39d03a50f9. Chain 2 (Bitcoin): anchored in block 957805 (2026-07-13T04:34:37Z), 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/CAN112400745.
Setting Free (The Undercover Dream Lovers Remix)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc81ddc02b68ea94b42837b08736c9f8981e147a5bb5eb9c357ca3829c8fc80f7. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), 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/CAN112401002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe462020868bce1a6ce6dc6141992d62278c02369078b80d6699d1b9d8b4233aa. Chain 2 (Bitcoin): anchored in block 958362 (2026-07-17T04:32:48Z), 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/CAN112400248.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd5e762a966e108aee357237dcfcc70ef778355d14d65c098adde97770a0e13ed. Chain 2 (Bitcoin): anchored in block 957880 (2026-07-13T16:39:18Z), 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/CAN112401239.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe8fcf0278fc305cc1c9dd9cfde3dba377940307616a5af3a182beaaf95cdf14a. 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/CA5KR2344780.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3fdbdc43ebbeae8fd29b70f998e3be14e7b92b61a9469664092b4927f79a761b. 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/CA5KR2261615.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7a0636863e3621085d954a488b0cb242c964d8ab0744cb46ac6c3293bb43c415. 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/CAN112300201.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7b847f79bf2b9e282b5355e2360d3236ced1c6b36df004949f2f016875fcbc6b. Chain 2 (Bitcoin): anchored in block 960327 (2026-07-31T00:26:26Z), 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/NLF711707851.
Armada Night Radio 171 (Incl. Junior Sanchez Guest Mix)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2a6b879bdbc39476d3141225cd88a0676865d390c2539a55c5ee3cfe2aa73462. 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/NLF711709063.