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 0xc59a1011656ac7d0119cad3fff7e9bfdc051516c6d859b92c645e4e3e78915b2. Chain 2 (Bitcoin): anchored in block 953596 (2026-06-14T06:21:39Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/0890fea5-3d72-4db4-bf26-67bff6643d86.json and https://artists.proofprofile.net/proofs/artist/0890fea5-3d72-4db4-bf26-67bff6643d86.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 0xdf848d8dbccc6dfcae7937e03381987b75f534db41ecdfd618c6ab553f8a5679. 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/GBKQU2441850.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa52cf8d48b2154d3895746208153214fbddcec0ac855efa863ee8393e8370be1. 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/DEH742334228.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc667ea4a812be4f0cdff38819aff6988a55071560bcd289266f767607c4ae0ce. Chain 2 (Bitcoin): anchored in block 960321 (2026-07-30T22:27:30Z), 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/DEH742334230.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x76b74c0776a58274b993666b1a12854c3e4ed54ef5b67ac1ccdcf38da89518b6. Chain 2 (Bitcoin): anchored in block 960389 (2026-07-31T10:20:10Z), 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/DEH742334231.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x80928041420264a1390019460e0bf57e8d1d9a32e7fd1aef4dc51f5b8319386e. 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/US83Z2350138.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2b54efea025d80ab175a461b45b951d7ebb0d9385e40895038b36174ae9f6ff6. Chain 2 (Bitcoin): anchored in block 960273 (2026-07-30T15:42:38Z), 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/GBKQU2397611.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcf0fe7ee48c968a0cfd17515690b8b9e57784e3225804cff3b1ba0a40df6f2fa. 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/GBKQU2397612.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x92fd5c6f5b237895a4b86779cf32ca072aed5f44dac4b6a4aa8888f4c2e7a496. Chain 2 (Bitcoin): anchored in block 960177 (2026-07-30T00:21:01Z), 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/GBKQU2356091.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x44150d33584a56768f122f0d277588e82c531fd48198b18f7f48d7eb15573ffc. 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/GBKQU2306665.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x91604d9560ba93d8301d38e8472479beaee487c1e3b68d08f69f3f726f7e3e37. Chain 2 (Bitcoin): anchored in block 960509 (2026-08-01T04:30:37Z), 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/GBKQU2306666.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x51bd84d3eeb8649cd1853007f42aee8dea9b83351bd051e46a9a314c74d8f368. 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/GBKQU2306667.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb78e8d374d4175536bf4abba8cebc65db982541ebfcb50a127af35324b145085. Chain 2 (Bitcoin): anchored in block 960264 (2026-07-30T14:36:16Z), 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/QZHPJ2228060.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3a30307a863ad2993190d09ebae6cb1a61951ab487264ce55bf1877e3e3f41d2. 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/ESA012268179.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x45fb9fdb0e29554515d8e72fd6c59deaf44c7117d090602c2146aec563c7c9c1. 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/ESA012268181.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x33e6d79d48b37d95ee5d36e41ebe6a035211a47e53589130fdee38d45ab71632. 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/GBKQU2184390.
There's Something About Us - Original Mix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x597bbc1ea88e63e9b45f4a6c323727b70621a92ac70030236ba10a1ea01c648a. 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/CA5KR2147686.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x519b96cda6e6b772f4f1c86773eb9c4e190820493f23c1723af8ccae4a16ab26. 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/DEY472086996.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfcc5a7e240ae259e1da4011848787a974cea1c966ee951a1b7edc4ffb9b6b998. 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/DEY472086997.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb546a1fc90db05a3ad8f30e69ca8e3c9a3d0850b24a551457b7d0f291a148609. Chain 2 (Bitcoin): anchored in block 960337 (2026-07-31T02:51:48Z), 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/DEY472086998.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xef9a57c250decabcef117046f2120b283589ecf63c50f275ca0e73c28d3a3dd0. 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/DEY472086999.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9b7a27e8849db07e925740c57fde8b07988e8c9e8810f3a1e53fa26453f0aeb2. Chain 2 (Bitcoin): anchored in block 960481 (2026-07-31T23:51:35Z), 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/GBKQU1904887.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd9da85a59a0287481b1dc321916e7b5feb11cd284c8794fc57cd122241cb2ad3. 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/GBKQU1904889.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x87be1219345b94e782e7019005c46df2e587e4a139667bd4a0bcd70c13752562. 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/QZS1Z1631188.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb3ea6b908328ea69e051e4c4d39e7c7b68a79125a290f2d54239be8c2fa6bb72. Chain 2 (Bitcoin): anchored in block 957020 (2026-07-07T09:18:01Z), 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/QZS1Z1631223.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3fd087d74e1a856e4ade57676dca69d61bfbc5e5dc8092cc0751b3aee36fa9be. 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/QZS1Z1631224.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x58d54f0030b821fcbab243753c03fcb7ab1aed49c5a0e84b0d54ac0bb0314a72. 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/USLZJ1418251.
Feel The Vibe - Lucianno Villarreal Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc398e9f5054b5e187b3d8108b035a7665e297a968b3c5b45b790eb94d981c2c9. 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/USLZJ1418252.
Thank You House Music (Mike Sharon Vybe Remix)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xac7c3c09e64ac5bb2183c44486cf9298af3df7686638cbdec2b4aec8fdcaddb4. 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/QMSNZ1450603.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x13b86e291c4106275226f690a97f49f428eb31ce183a01df028ac3d90ee89952. 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/GBKQU1390146.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5341d507f096430f77003feef456e62fdffa0f3b5d9135361b48c07acf2b8b24. 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/GBKPL1361795.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x17b4e474798859e6c0383294aaf0b7725c0652305c93961eb481744fdb161a97. 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/GBKPL1361796.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd6ec3c5d3cd120a51750b05f8caad8c00bc50a52b014e2710800c541466701f5. Chain 2 (Bitcoin): anchored in block 957073 (2026-07-07T18:39:05Z), 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/GBKPL1361797.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfc317524390e27789760d932d338698f1494415680abebcff13b941b5f1bffeb. Chain 2 (Bitcoin): anchored in block 960487 (2026-08-01T00:15:43Z), 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/QMFME1306817.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x373aec73819ae27841ad1a07672e52b0c9d549ffec56914a96307f23d7644102. 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/FR6V81861914.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6a14cd40a007d9b9559767d0b74b1f7d77b832f784e61d4cf9e1eb166776fd43. Chain 2 (Bitcoin): anchored in block 960397 (2026-07-31T12:24:41Z), 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/FR6V81861915.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa45f8a78534ba4c7e67bf5c3ae5b269f725fc13e0ebe39650f70c0f082930ffe. Chain 2 (Bitcoin): anchored in block 959137 (2026-07-22T14:03:35Z), 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/FR6V81861916.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe39420286c3ebd00ebd8f0d3b95f89a536ea39236122590397dd35f748d5a8f2. 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/DEZ651209438.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x21225cb8c0994d919a626586301c53a48f762bf3064f60d341cb2c3eb4421185. 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/DEZ651209437.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x28460099884cf4118d58683158c3b8ab8c1ac7a885d2909de82ecc3504b64f75. 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/DEZ651209440.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6798c35341eb6224c430d5376467caa19a89b8c22b2f81b529f5d7644eac3c88. 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/DEY471982574.