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 0x3bec9e093d659c3a0c26533ade05c7379d951bffa471f5f7622eb51478267942. Chain 2 (Bitcoin): anchored in block 954066 (2026-06-17T08:11:48Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/5e0f0d05-410b-49bb-8d82-fa6082ef628f.json and https://artists.proofprofile.net/proofs/artist/5e0f0d05-410b-49bb-8d82-fa6082ef628f.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 0x6fed5c42b03a5288d7553b1c2ec28c31d727d6e56fdf7b1ec3c56f1aca44a03f. 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/TR0361000479.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3776cc6165abcbc7c7c72ea0d482d4548caa538ddaebb5f199e0dbf23993fa71. 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/TR0361600020.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0651c798956bb547933506bcc2e9ce796c895db2fca6eff741f20e44b19e56b5. 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/TR0331409863.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x618f2df9ca52e30cc56caa14739c355c1a0ac2f6f7a6050a29406f5a87dabe4f. 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/TR0331409882.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x059fe49d97a887c5d6128d63731d1786807b08dc30944dd4c5754b9ebb158723. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/TR0331409864.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2776d709f2be75d1082da7b83da67f17c46e021e9c7452fd34697a3073b20834. 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/TR0331409883.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x97e291cda17b16fbba3cc0447ec10d2dc9e4810a35d6a15dcb9694a3eeb373ef. 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/TR0331409866.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1d8e54b703b1bd4bb03efd2152d95cf63a1a74b91ee9f0113120be38815daa14. 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/TR0331409884.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5863997a4d2efe28144bbeb936575638e7604b6517242aa4964c2653832474be. 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/TR0331409865.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc7e43b0b162918cc641f37caa483c9398ed77bbf20a5b6b8a49e06388bdfbfe6. 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/TR0331409885.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa2619c1c34c67585182763422df4e572f09caf6a2ba560b9213eee9e5c00666c. 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/TR0331409867.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9feccd494dc30b1ef25c014052f1142fd62246933f351b0cedc64f8c2f1317c5. 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/TR0331409886.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3de19fac2f70a499e1f9efe450fd1587eac14880bcd413d9c6e074df6595c429. 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/TR0331409868.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe953d928fa0eae16f7bc083ba44c685510c0f3c3a7ba70c81b9ea31c7b42f801. 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/TR0331409887.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd47eae8a556ca8f36290e4d569cf5cc6429e83bd8aca3eccc553d365706bad59. 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/TR0331409869.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe883eaff66ce63f65aa60de7064ceb25e67dff7f09e0200fa83aea6431129ed5. 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/TR0331409888.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7e584bbbe2e9a394bb0c19a63ff149a1201573bd78704023cd8dbc8c64ed59d3. 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/TR0331409870.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x042fb2dd2241667acfe73908941f7a0abd60178a03c6def182c8904a22f6825f. 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/TR0331409889.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x06c1df9beb7977a7450a309eabb48728b4d6628f606bf68716124a5087cf3909. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/TR0331409871.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0428b05c2d934ab530eb13454d0ffbf310355e7c7b78b6c07a97a33520097895. 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/TR0331409890.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x44b2ff5769adf78b07dc9888b0aa519a12847b3ab1b19c79dd9c1eef81e1154e. 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/TR0331409873.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x58936b5276ea5bf8202aca86f186adf83b23495c5cf85f7f0ee406a999dae07b. 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/TR0331409891.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe27747c9e60c1f1244e90f4b6b67673b774ea5b3e02cddcf7254b3981b073eb4. 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/TR0331409874.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x003d2c7fccd9f1b55f4a15b15c42465c8f0222b8fb91d6ca4794b7e8b37dc300. Chain 2 (Bitcoin): anchored in block 957820 (2026-07-13T07:54:01Z), 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/TR0331409892.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6305a0a0cf067464b923387cd2ea9cc02650d4d2d574bc6287e121ad1361c218. 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/TR0331409875.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe8124edf14deb90338f68ea80d2874bbfeccb1c61cd1bde5c934cdd20213d590. 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/TR0331409893.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1ebe1dc65605dc3b6ca26b43b0ac7f5a0b0229eb07408b63acfc45dc8a101a30. 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/TR0331409876.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x99bf3a01ccbf44611f6d80ccace692f2ce7bce3f3c0bc8d095aea459fa144be2. 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/TR0331409877.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf379629f1e045e9ed1bdbc6918be1e0d56c6bb4313295ff1c8c8ef3a4f6dc57b. Chain 2 (Bitcoin): anchored in block 957084 (2026-07-07T20:41:57Z), 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/TR0331409895.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa93a07604fcc5785ecf30f74df89c90cc1b040a2c5a381c48cadc54cc4d135bc. 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/TR0331409872.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x83bc5a67d7c3936ce73dcc593efb047acace0d5f37b4a5231e1cd575907c87c2. 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/TR0331409896.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8f93413d448c666d75cede98569c363a064a064331a8c9d75ee6acfdf4c2d36a. 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/TR0331409878.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x476535700b45a8532b6f9db8bb7d6deb6ff3cd27904bafeb9d9bb9255d3063f0. 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/TR0331409897.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x271f51d66367d9e88dd230a1dcdb210264906878631fcc8ae55938a709ce6f1a. 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/TR0331409879.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc49df7477433f12460b8e0bc1d87c51789e136043c48aff848a2581f84d163ad. 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/TR0331409898.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4037985fed19d8d95721d215c76c81144b0bd9d7aecd8b2b0e61924ea321df27. 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/TR0331409881.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x34207f636c46bc022e8bff365868d98bf5099d9717bd6b3ddf5f909b7777167d. Chain 2 (Bitcoin): anchored in block 957819 (2026-07-13T07:53:33Z), 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/TR0361900020.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0143afa35991871a6df436d04147b69fd1a035f5db3e5ef0e19c93caf430f79e. 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/TR0361900041.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbbba267ba2b0d356195076ce3e399eb9f12643ec391518f5af4a9bc0abc6a437. 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/TR0361900027.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc1f8417fab6327151b6becdd6a86459f989a90ce577e7833547c9955138261d4. 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/TR0361900035.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x62ea5645657ff5da7824e625ffc1d442862d5087ab1bbf3e77565278c8f98355. 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/TR0361900022.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x04142bc0d8e27649a7ae6771d921962ef250c5cf4a5a0a9864dbed3955764f90. 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/TR0361900044.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf08228603d8efe75cbbc0c195f2466d66c48adabefd8e1aaadc1e2d6880bc269. 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/TR0361900024.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb10541b190f60ccb132cf8ce3a897a9f9cbb6bad397f46d1cc9ca0cd3009725a. 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/TR0361900037.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x84d3665828ac2b6485909181c8e7e1ae6fa6c9b9041085b41e9b811fb699a555. 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/TR0361900021.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xce211617108983f51932712fa30ec9c5db942bed8a1608123564be7a19a54f99. 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/TR0361900040.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeed2d8608e39c39b44ea138a689fa5bc42f135eae301cdfcd60fbdc8978a2a8a. 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/TR0361900025.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc878b153c64afb69e49f19e5d5bf8bf90017d5cc1961d913fd36d809365de569. 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/TR0361900046.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xec1a9a175a36470d91e0648b276dd7d08895c973a2c2559cc2ce4e42c81e22d7. 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/TR0361900031.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x48b544a1cdaf23f19e665422aa9c7542332501b9a6a4c15d6e36dd06494cb3af. 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/TR0361900048.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3ca68b34aa05011b747fa1ecac48497065b9c4a5ef33ac61d385a2cc642b1897. 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/TR0361900034.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6978e36fddb7ff2bd1918f9370b1b1b65d68a5cc4244fe64756b4acf57f4c359. Chain 2 (Bitcoin): anchored in block 960478 (2026-07-31T23:30:38Z), 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/TR0361900038.
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 0x45e911da042c9761eb763f7d774f49967ded9350bc0066cf25df5889128ba19a. 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/TR0361500135.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x859a5cfa741b87d72e2dbcc4633308499aeaca7ee8d7529d9d2cc08c361f3157. Chain 2 (Bitcoin): anchored in block 960334 (2026-07-31T02:19:15Z), 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/TR0361500132.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0895b1faeb4516e24398437ff3ccca791de7f0ebb6c35b4080e52ac81ff3b0b1. 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/TR0361500127.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7e0a2338c89a574589fb745176234df7c84b679c6e729d0e77886936a948b325. Chain 2 (Bitcoin): anchored in block 960478 (2026-07-31T23:30:38Z), 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/TR0361500125.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbc21e741c5937a3674add348fc1c9f8e9eff68b9321204e70e74593d90bbe2a0. 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/TR0361300183.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe831602c3a5c9abc7c7549fbd9077d6d85cd52e05e30a694e413edea09016112. 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/TR0361300186.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfe25c1fba34b57122fc7ffd1820ed245631682058feedcd276ae57fc11e85814. 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/TR0361300189.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcd03845c251227b1cb26a203ace9ab5e792a2e9c8ac95ca224aebe755c8af3a2. 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/TR0361300187.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x506d414f06f06ec9723781509eb8343da95b1a228055682bf44ff6e294b4c992. 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/TR0361300185.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4316da90d43c903f9a18e726fc483db83250af48acf705e419befe8268f88659. 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/TR0361300190.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6aadc1e452e52d26fba891e0196723051346572ff4a1f4bbf99e18b87e83cb39. 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/TR0361300188.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbe92759ae1c2e26e6fa70786f24854a11e5b42e6ddd7b32b4f8c0b4329392d07. Chain 2 (Bitcoin): anchored in block 960360 (2026-07-31T06:42:11Z), 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/QMFMG1364244.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6f1e19135e8ebe59bad8f6f0697b42c159ab063a065e94fa9f2158405d691017. 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/TR0361300071.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9c7af2cd50790ac563e6fa35186710b649078cd82fadbe736457a17f6f2222cf. 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/TR0361300073.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaffa369ac8a0bc309852748dea6880f3d25b93c3ed35d81a57332cfbfa475dce. 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/TR0361300070.