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
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb7ac76944d48aeb84e41f967859b4aeddde25721ca699484d70d75872d980c57. Chain 2 (Bitcoin): anchored in block 953423 (2026-06-12T21:20:00Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/c356c882-6013-44f4-b0e7-269551495efe.json and https://artists.proofprofile.net/proofs/artist/c356c882-6013-44f4-b0e7-269551495efe.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
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4169716f7ddc5e4f140a5e6c2bf21c73437756ba20623b234d811f9e2f017290. 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/GB2LD2310198.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xacdbade5b88c1fa49d03a2692c3f19b0dccbb4ae88327537fe0fa61ccb05c907. 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/GBRF51900057.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc5d6db6521090ad993343d685e0b8c7d78e000f2f1a329ab1c4a492493730eb1. 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/GBRF51900059.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1811d67258801effcbc63fd97f589f48f41e5e270231fb51c0cb4b971047f5f8. 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/GBRF51900060.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe0500ec7084de264fbeec537f7597e8b1585415965394a5bea67a32cc130560b. 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/GBRF51900062.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x71fadda3765c3e874789836682d900a44c6db0dfc51965d30f3142fa94879397. 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/GBRF51900064.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7c33cae58d7a8ba8dd9b93c937c9ded3bc451de86dbdcb0e54ab3edbf7bdf80a. 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/GBRF51900065.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x37ec9791bdda73456dcd87319418ac8dee4cec99a675ae41f3d5b88e36b6274d. 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/GBRF51600065.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9ebde5e296e309558768fa056602a4f9efb728168f91603b4772b6aeb41b3350. 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/GBRF51600030.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf0b52ff172e46c519a9fdb95dd69294390992aed798460e3a4214844da070301. 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/GBRF51600010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe3036bb5b5a017069011b8f17258597e742d0ebdd623b1e3fad6c6791630029e. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/GBRF51800001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8ffe7a35297256ab4ff93346e334594c5d28352d79792a7d8fa9935d98d5bb71. 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/GBRF51700020.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x783afff729ca2981e1237e997b53c83786aeb18423f4e7f7f156dd66da801f7d. 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/GBRF51700019.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb4fef1883e0ef378cc00fa15420f296b88cd48344df49d1c8c59c96cb07003bc. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/GBRF52300036.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1c227191b4d1bc132edb2acd061505dcec6fa834a57d983e632dfe4b1fe3478f. 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/GBRF52300029.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1922ba1d4e5b8b30a6c3b291cb6466456ff4a3a6a47de45a7f3ee4ba29daa028. 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/NLCK42224146.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7facbf63d0ea1287b8b1145e54ce712fd6a447e13e0f00dc29b9af3103799fed. 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/GB2LD2210402.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe65d8e019d848727141fe14b979cd28ee63b68793ec5c782db636eaea8446499. 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/GB2LD2210403.
Beautiful You / Drifter (The Vanguard Project Remixes)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x06e1c44f1228203979d6bc9e477b4d3524ac6c2442103805c9d76946480209b6. 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/GBRF52100142.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdeee83ebfc6dfced38e794ee45a76af5b36c13c92dec3b18b12d46bc649e2ed6. 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/GB6TC2075013.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x27dccee9890c26b31ba5c28770613a3bb8f906cd859469404ebfc79513aea87d. 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/GBRF52000062.
Another Night (The Vanguard Project Remix)
Another Night - The Vanguard Project Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x08f6fbcb16beb96deb2f0b01899bf230f5b59125cf759a4354ec15d031cb1d50. Chain 2 (Bitcoin): anchored in block 956349 (2026-07-02T11:34:59Z), 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/UKBV42000001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1811d67258801effcbc63fd97f589f48f41e5e270231fb51c0cb4b971047f5f8. Chain 2 (Bitcoin): anchored in block 957084 (2026-07-21T17:22:58Z), 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/GBRF51900060.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x679d9e8c359fcdc07169b8551162125a95982d97b0899c7325fbe300236344b0. 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/NLCK41047142.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdd51cf4257f2bce918b83dd1c6863743092840adae921ee975c85e3add6dc232. 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/NLCK41047143.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe2c1f819575de64cd868830aaaf6283e90e3f8b9262d4d313155fa42398f6f9d. 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/NLCK41047144.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6f3489d5fa1035faece9a4f25ab46d4d07bede72ddfc738ec7b108054bb56745. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/NLCK41047146.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x94603b8d2aad247205f73c7f8438c4c39babc4af929752e0817feab4ded004ee. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/NLCK41046123.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd86c86f0b8dff6fc0546f8da067c686c5883b436ed8378fc52ba6f735bf3cc7e. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/GBRF51800005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x14f0470452c0940b0e5f3aea574d9e16eee67fe174ab578b64b20a2b25bf5d8a. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/GBRF51700053.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6bf40f2d174d15e77ebff983e2beb0fcd1c93964532fd6849f2ebc5aaf2967a5. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/NLCK41042935.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcd2fd8989b27b00e4fc5978a97633d24bc300df958ec264040dedc5b2bd18d40. 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/NLCK41042936.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1b5e63ddce80341820628ddfbd7673aa1c3c49e97cb15a5e592928ada019639b. 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/NLCK41042937.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1200d76df732109048261811ddcf0ded7cbd4232c78923d9052871f7808ca125. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/GBRF51700022.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x147b1d6298d07326b52e1cacf9e3dfffcb0b3fa842c743d1b163690b09eda11f. 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/NLCK41035988.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6431c7a8d2e36d0f9d01c4ec31a24dbb31d7d4ec1ae1f47694671679b438d136. Chain 2 (Bitcoin): anchored in block 956891 (2026-07-06T07:16:32Z), 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/NLCK41035989.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3234a6bb35ae66c71dd4daa9290006f1c8e671efc60cc0c3ee6c4a9c1fe870a7. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/NLCK41034573.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9ebde5e296e309558768fa056602a4f9efb728168f91603b4772b6aeb41b3350. Chain 2 (Bitcoin): anchored in block 956891 (2026-07-06T07:16:32Z), 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/GBRF51600030.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf0b52ff172e46c519a9fdb95dd69294390992aed798460e3a4214844da070301. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/GBRF51600010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xca98ba1b63960f4bc57c106ca4f57c565f961322e040fb980cb90087ff1ad98f. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/GBRF51600012.