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 0x174cd1379171e431cefedd8dc4fc105d9e972a8cc5571dac87a4fd7633b520fa. Chain 2 (Bitcoin): anchored in block 953807 (2026-06-15T16:39:18Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/f36bc167-43f8-4844-b3dd-b9ed03cb9b26.json and https://artists.proofprofile.net/proofs/artist/f36bc167-43f8-4844-b3dd-b9ed03cb9b26.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 0x68a7e6a6b3017c5d4e323ac3b393db2ca72225b9acd10154c5933284ed8b3f9a. 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/GBKQU2193579.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4cc7ba44abc686dc3e94a7776633126415e4ff1f469d91fd6f087ed5b577b3d2. 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/GBKQU2131850.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf25ea5b6e893b3e449aff0197314c8ab566110e8a00fe994327a5b9057ecb75e. Chain 2 (Bitcoin): anchored in block 956351 (2026-07-02T11:38:34Z), 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/FRDX62306860.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xae2beef98d3d2c4fadc41f2f0fcfa0f9a59f352a4984226193659b36d7734617. 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/FRDX62306870.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xae2beef98d3d2c4fadc41f2f0fcfa0f9a59f352a4984226193659b36d7734617. 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/FRDX62306870.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf72af71212df1c61b1bbaaafc650a5df2c30e17e82c87da9bac20c1afc9eee6f. 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/FR59R2129651.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf3f13214987592a9afbc799fe8bebe4e9cd55889191381fd6b09957b2d30d070. Chain 2 (Bitcoin): anchored in block 957041 (2026-07-07T13:25:45Z), 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/FR59R2129652.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdbe89d465a8a5ff1ca971373f15c91fce12c1b9eb5e795db5594485eed297544. Chain 2 (Bitcoin): anchored in block 957819 (2026-07-21T16:19:22Z), 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/FR59R2129653.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2fe67ab1ed67a74feed708e383245f78d14d30cc7ab63db6e354c95f70989f0d. 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/GBKQU1943191.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x20161b38a2ea5533fbf025b814450da3b74d87efcc8a6f5e76b5ad0c337a6454. Chain 2 (Bitcoin): anchored in block 959118 (2026-07-22T10:01:58Z), 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/GBKQU1943192.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xed38fc2c2e6f83a74bb6843548868c3290e7a045a0c5ef66d106c8a6cb0684b6. 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/GBKQU1943195.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x21cb91ecf6dbb280d6e85f3a8ce17d85726a2ba29cc44f6b5d6239674d737031. 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/GBKQU1943196.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9604e8a14af03dcee9eccf967136e996b39911aa1a57fa1e910b5b7c8e7217bf. 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/GBKQU1943199.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1d638619b91449bd6d2597d5b8aa547f58572b53d6ff1dd8982536cb38c1579d. 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/GBKQU1943203.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9157d5491444fda78503bd94518a953fe7bb6dce485c238fe803df8529d90f10. 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/GBKQU1943204.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x02280a3144e59ff303ec4074845f66cc3bdf4140ffa60ee55adb7656bf83ca4d. 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/GBKQU1943205.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x03934ca9a395a65f166078b10fbbe19dbf2acff80196e84522ed5a4f91ce4233. 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/GBKQU1943206.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x463eff6b00038f15a24f6a1005c7895af432a48120ab478705fe5869139ec63b. 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/GBKQU1943211.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x72b8049ed0d497e4652defeffdab9604ed516132cc8927122757cbae87079c04. 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/GBKQU1943212.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf966ad1641da019a74c8b85782e13bf0cd8077131e9bdc276203f17adf5eef1b. 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/GBKQU1943215.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc7694a78df64f204c486055924995968b032ad42c3b55c0b72b47363a29bf1af. 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/GBKQU1943217.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe58eb2b8b7282719cce2083787dbce65c2181e916d0761f5b5586220b0defd92. Chain 2 (Bitcoin): anchored in block 956894 (2026-07-06T07:53:57Z), 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/GBKQU1943218.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6cb78a3d9641f2ccdc1e54b48b6467e602698b169a5807e5f5de6ad93501cebf. 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/GBKQU1943222.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaa413c9f9e0be55da82c47bebabcd32d23c49f31506b4848216f1eb5d778c000. Chain 2 (Bitcoin): anchored in block 956889 (2026-07-06T06:56:49Z), 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/GBKQU1943223.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf3d5a7c679ed8ec83d6b608addc9e7750f8e279c65e2bcc84a27712564fa0221. 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/GBKQU1943224.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x17227c0b2990e11e2945f3d5e5c48d5f7a05f84edfbfdca40054ee7909545857. 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/GBKQU1943227.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7575a195f779abdd4b218d36db99af8a9b7206da089361e3c7e7c514204ecef9. 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/GBKQU1943228.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x30b33b7e710b78f8399fad6175bd2c652f59a5af0556203394b7af99f7916b63. 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/GBKQU1943229.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x50f84863f7ec0e8e25ba885cfb7c7e6b4a2298eaba4cf69f51f195ef08f82061. 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/GBKQU1943231.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe929815a73389f92eaa7055f5d94e691a7e86a92541e1554a611d7d46a9727f1. 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/GBKQU1943235.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x84c47b57718e433be63809da227e4e2570221a15de55fe7151e810724176d946. 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/GBKQU1943236.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x30dab3b86a166c2baef644d81ff4113c5728dcf655a2fffdb9a40bd12ac09e31. Chain 2 (Bitcoin): anchored in block 957046 (2026-07-07T14:04:01Z), 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/GBKQU1943238.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa8dc16a5d810b6bd63c80978e3efac3d61ecfa98e66fb1f9bfd4ed12de18cd68. 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/DEZN82131381.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf530c7c492b23b2f7ff0a26250ec3d7460921995662ffddb43d263094cc149e3. 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/DEZN82131390.
Pause Dallas (Pierre Le Disque Jockey Remix)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x57b3346fb755e1cdd3170932f5b9420d2550dc087847a4f1b673bdeece2d2791. 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/GBKQU2100789.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2a0f1853403321dd5536c8faed8baaa34fe26630e98158a659a454928a819c83. 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/QZ5FN2113339.
Pause Dallas - Pierre Le Disque Jockey Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbc0f8bdcdaa056d846872b03cc499f237e36cf8f775dc3f26b053590761726f2. 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/QZ5FN2111836.
Nothing But... Hard Dance Essentials, Vol. 04
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0d3371f661b111de9185038ddb3f52615b906a4a99fc0f03019e22d74b9a6d95. 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/GBLV62023857.
Nothing But... Hard Dance Essentials, Vol. 18
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8a751ec5e0d358b95403af03fc12a9a7e7cca19876c257e0d49114f2148554e2. 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/GBKQU2294334.